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You are here: Home / Guðmundur Guðmundsson

Guðmundur Guðmundsson

Profile picture of Guðmundur Guðmundsson
Virkur síðast fyrir 8 years, 8 months síðan
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  • 25.03.2007 at 08:01 #585466
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    1) Guðmundur Guðmundsson Toyota Landcruiser 80 44 tommur
    2) Ísak Jón Benjamínsson Nissan Patrol Elegance 44 tommur
    3) Gísli Ófeigsson Nissan Patrol 38 tommur
    4) Stefán Hólm Jónsson G-Benz 38 tommur
    5) Teitur Guðnason Pajero v6 3000 38 tommur
    6) Lárus Rafn Halldórsson Toyota Landcruiser 70 38 tommur
    7) Bjarki Clausen GMC Suburban 6.5 38 tommur
    8) Páll Arnarsson Terrano II 38 tommur
    9) Vilhjálmur Ingi Halldórss Toyota Landcruiser 80 44 tommur
    10) Ragnar Friðrik Gunnlaugsson Toyota Landcruiser 90 38 tommur
    11) Jón Ofsi Slóðríkur Snæland á magasleða
    12) Magnús Sveinsson Isuzu grew cap 38 tommur





    24.03.2007 at 10:27 #585464
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
    Participant
    • Umræður: 90
    • Svör: 1091

    1) Guðmundur Guðmundsson Toyota Landcruiser 80 44 tommur
    2) Ísak Jón Benjamínsson Nissan Patrol Elegance 44 tommur
    3) Gísli Ófeigsson Nissan Patrol 38 tommur
    4) Stefán Hólm Jónsson G-Benz 38 tommur
    5) Teitur Guðnason Pajero v6 3000 38 tommur
    6) Lárus Rafn Halldórsson Toyota Landcruiser 70 38 tommur
    7) Bjarki Clausen GMC Suburban 6.5 38 tommur
    8) Páll Arnarsson Terrano II 38 tommur
    9) Vilhjálmur Ingi Halldórss Toyota Landcruiser 80 44 tommur
    10) Ragnar Friðrik Gunnlaugsson Toyota Landcruiser 90 38 tommur
    11) Jón Ofsi Slóðríkur Snæland á magasleða





    22.03.2007 at 23:30 #585462
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
    • Svör: 1091

    Þetta er það sem ég kalla samstarfsflokkinn.

    Jón þetta er í lagi með einu skilirði að við setjum bílinn á toppinn og hann verður í bandi, minna slit að dekkjum.

    þinn vinur gundur.com





    22.03.2007 at 22:33 #585458
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
    • Svör: 1091

    Jón hvort ert þú vinstri eða hægri grænn?
    [img:1mmb1gir]http://www.f4x4.is/new/files/photo/default.aspx?file=files/photoalbums/3844/25542.jpg[/img:1mmb1gir]





    22.03.2007 at 16:42 #585452
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
    • Svör: 1091

    Sæll Villi

    Um að gera að Garðbæingar fjölmenni í þessa ferð og vonandi verður vélin klár. Sendum góðar kveðjur til DK.

    [url=http://www.tryggviogkristin.vefalbum.is/main.php?g2_itemId=98:1pe1dsk5][b:1pe1dsk5]Myndir frá TNT úr síðustu dagsferð[/b:1pe1dsk5][/url:1pe1dsk5]

    kv gundur.com





    22.03.2007 at 10:45 #585446
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sælir félagar

    Þetta stefni í Hjálparsveitarferð.

    [url=http://www.gislio.com/thumbnails.php?album=20:wj4ayz6v][b:wj4ayz6v]Flottar myndir úr síðustu ferð frá GíslaÓ[/b:wj4ayz6v][/url:wj4ayz6v]

    kv gundur.com





    21.03.2007 at 23:24 #585442
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sælir félagar

    Er ekki bara ágætt að menn skrái sig hér á
    þráðinn nú eða sendi mér póst.
    kv
    gundur(hjá)isl.is





    21.03.2007 at 21:26 #199973
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sælir félagar

    Núna er verið að undirbúa dagsferð á Vatnajökul um páskana. Ca. 6 apríl föstudaginn langa.

    Föstudagur 6. apríl
    06:00 Select Vesturlandsvegi
    08:00 Hrauneyjar
    10:00 Jökulheimar
    11:00 Á Vatnajökli (pulsur grillaðar)
    14:01 Grímsfjall

    Dagskrá lok eftir veðri og vindum.

    gundur s. 862-8511
    kveðja fararstjórn

    Allir velkomnir sem hafa VHF og GPS tæki.
    Dekkjastærð 38 tommur plús.

    Myndir úr síðustu ferð 6. maí 2006
    Myndir úr fyrstu ferðinni 12. apríll 2006





    18.03.2007 at 21:22 #585094
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sæll Sindri

    Best er að endurnýja hluti eins og kerti, þræði, hamar og lok.
    Skipta úr bensínsíum við tank og jafnvel við vél.
    Þetta færðu allt bil baka í betri vinnslu og minnið eyðslu.
    Varðandi mælinn þá gæti barkinn verið farinn að gefa sig.

    kv gundur





    18.03.2007 at 18:43 #199950
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sælir félagar, einhver var að spyrja um hana þessa:

    Engineering the new engine

    The new engine would be called 1FZ-FE and it would a 4.5 liter inline 6 cylinder. The engine designation read as follows. (1) stood for the first
    generation of this engine. As it would turn out, there never would be 2nd generation of this engine family as Toyota got it right the first time.
    (FZ) stood for engine family. Although designated an „F“ engine, it shared no parts or design with the original F series engines. The next (F) stood
    for it being a narrow angle, dual overhead cam design, and (E) stood for electronic fuel injection. It should be noted here that not all 1FZ motors
    were fuel injected. Some overseas models were carburated and thus the (E) was dropped and they were called 1FZ-F motors.

    4.5 liters is huge for a 6 cylinder engine and the bore x stroke of the engine would actually be the similiar in size to a typical 400 cubic inch V-8. What
    is amazing about the 1FZ is that Toyota was able to significantly increase the displacement of the 1FZ within roughly the same block dimensions of
    the 3FE. However, make no mistake, the 1FZ shares no design features of the 3FE as they are completely two different motors.

    Head and Intake system

    For the new motor, Toyota would go with a long proven and fairly conventional design, by then. A cross flow intake system, where exhaust was on
    one side and the intake was on the other would be combined with a 4 valve per cylinder and double over head cam valve train design. Instead of
    using a timing belt as on it’s earlier 6 cylinder designs, it went with a single heavy duty timing chain, to rotate the intake cam, which then rotates the
    exhaust cam with scissor style gears and the two camshafts. The chain would ride on metal guilds with plastic lining. This design was fairly
    efficient and helped makes lots of power, but more importantly, it was extremely reliable. No timing belts needed to be replaced and although only a
    single timing chain, the chain rarely wore out. The valve train was a narrow design for compactness to keep the dimensions of the head as close
    to the 3FE as possible, allowing it to fit in the same vehicles as the 3FE did. One major distinquishment between the 3FE and the 1FZ is the use of
    aluminum instead of cast iron in the head design.

    The intake manifold was designed to use long 400mm runners and shaped so that each cylinder had an equal length runner. This significantly
    improved the flat torque curve. The intake manifold is a two piece unit made of aluminum. The fuel injected version of this motor is by far the most
    common and it uses a multi-port fuel sequential injection system. Fuel injection is controlled by a digital ECU unit that is located inside the vehicle.
    Early models 1993-1994 were OBD-I compliant, which meant they used a less advanced, but somewhat simplier standard for the ECU. 1996 and
    1997 models used the newer OBD-II standard, which basically includes more sensors, and on board diagnostics, making it easier for smog
    stations to test the engine. 1995 models were a transition year and sort of combined OBD-1 with partial OBD-II compliance. It’s not clear how 1998
    and later models were designed as OBD was a North American standard and the 1FZ ceased being imported in the U.S. in 1997.

    Ignition System

    The ignition system of the 1FZ is fairly conventional. A gear driven distributor is located near the front of the head is run off of the timing gear. The
    distributor is an electronic type with an external coil/igniter. On some later non U.S. spec models made sometime after 1998, Toyota introduced a
    direct ignition type system, where each cylinder has it’s only coil pack and the distributor was eliminated from the system.

    The Block and Internals

    The 1FZ would be equipped with two knock sensors in a system known as KCS (knock control system). They would be installed in the block side
    wall above No. 2 and No. 5 cylinders. The KCS can accurately and quickly detect knocking and control the ignition timing to compensate as needed.

    The block of the 1FZ is conventionally made of iron and makes up a significant portion of the almost 600lb weight of the engine. However, it’s
    unique in that it’s a short skirt block design to reduce weight and has a cast in rear transmission bell. The outer wall curves outward towards the
    bottom to increase rigidity. As part of the short skirt design a two piece oil pan is used. The upper piece is made of thick die cast aluminum and
    makes up for the short skirt block design while reducing weight. The lower sump half of the oil pan is made of rust resistant sheet steel. A sensor
    is located in the oil sump that indicates oil level and once the level reaches a certain level a light turns on, on the instrument panel. Also cast into
    the block is a built in oil cooler and a mount for the power steering pump, which is gear driven (not belt) off of the valve train system.

    The 1FZ uses a conventional lubrication system including an engine mounted sump, which holds a whopping 8 quarts of oil, and a gear driven oil
    pump. A special oil jet system is used to keep the pistons cool. A feature usually reserved for turbo charged type engines. The oil filter is located
    high on the block on the intake side and depending on vehicle model and engine accessories can be easy or difficult to reach.

    The pistons are Strutless type made of aluminum alloy and are connected to forged connecting rods, that have been double shot peened and then
    connected to the crankshaft. The crankshaft uses 7 journal and 12 balance weights. Bore and stroke is 100 x 95mm. The stroke is equivalent to
    the 3FE, but the bore is about 6% wider. The compression ratio of 9 to 1 is significantly higher than the 3FE’s 8 to 1, but still fairly low by modern
    standards. This allows the 1FZ to easily run on low grade pump gas often found in 3rd world countries. It also helps to improve longevity of the
    engine.

    Cooling System

    The cooling system is fairly conventional. A radiator holds water/coolent, which is fed to the engine via bottom bypass thermostat. The water pump
    and fan are run off of the same pully which is connected to the crankshaft pully via a double belt fail safe system. The fan is an 8 470mm blades
    and uses a three stage temperature controlled fan clutch. Early models, 1993-1994 used a larger copper 3 core radiator. Later models,
    1995-1997 and possibly later used a 2 core aluminum type radiator. The reason for the change is not clear, but the later design is often criticized as
    been not as good as the earlier copper models, although both cooling systems work quite well.

    Final Notes

    Instead of reinventing the wheel, Toyota engineers took the best of it’s past motors and incorporated them into the 1FZ to make it one of the most
    reliable engines ever built. The 1FZ is often criticized as being a fuel guzzler. To some degree that’s true, but one must remember that the 1FZ is
    the powerplant to vehicles that weight in excess of 3 tons. Also, the motor was designed to be reliable and have tremendous low end torque first
    and foremost. Economy was on the list, but further down in day and age before fuel efficient was a major concern. What was a concern to Toyota
    engineers was that this motor would see duty in countries where repair and service would be rare if ever and the vehicles they were power would be
    required to carry and/or tow tremendous amounts of weight. So consideration was given to making the motor as durable as possible, while
    dramatically improving extreme low and mid range torque.

    The 1FZ has few inherent mechanical issues, but there are some things to consider. Toyota and other manufactures had issues with headgasket
    material in the 1980s to mid 1990s as asbestos was outlawed and could no longer be used in headgasket material. During this interim period,
    manufactures had a difficult time finding a suitable replacement material and as a result, many Toyota engines, including the 1FZ can blow
    headgaskets at higher mileage. Usually around 150,000 miles. The new headgasket designs are superior and should last the remaining life of
    the engine.

    The 1FZ has a unique cooling hose issue, in which several small external cooling hoses can wear out after 100,000 miles and leak. This would not
    normally be a big deal, except some of these hoses are hard to reach and time consuming to repair. It’s often recommended to replace these
    hoses before they start to leak.

    As for longevity, the 1FZ typically lasts well over 300,000 miles when basic care is given to the motor. I’ve often read reports of engines being tore
    down with 300,000 miles and no major wear to the bottom end. 200,000 and higher mileage vehicles are extremely common and most of these
    have had no major repairs.

    Oil recommendations:

    This has been a major source of controversy. For U.S. spec vehicles, Toyota recommend 5w-30 for most conditions and 10w-30 for extreme hot
    conditions. However, this likely has less to do with what is best for engine longevity and more to do with fuel economy. The lighter oil just barely
    improves fuel economy and the government mandates that manufactures recommend an oil that is fuel saving.

    However, in Australia where the weather is mild to hot and there is no such fuel economy requirement, Toyota recommends a 20w-50 type oil.
    One has to assume the heavier weight oil is better for the engine, but more research and debate is needed.





    16.03.2007 at 23:07 #584834
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
    Participant
    • Umræður: 90
    • Svör: 1091

    Sæll Þrándur

    Þetta er flott hjá þér.

    [url=http://www.gundur.com/displayimage.php?album=45&pos=1":1j4tj6q2][b:1j4tj6q2]Varstu búin að skoða þetta?[/b:1j4tj6q2][/url:1j4tj6q2]

    kv gundur





    13.03.2007 at 22:55 #584306
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sælir félagar

    Þurfum við ekki bara að sníða stakk eftir vexti.
    Forgangsraða verkefnum.

    kv gundur





    04.03.2007 at 17:56 #583154
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sæll Kalli frændi

    Mín er ánægjan

    kv þinn frændi gundur





    03.03.2007 at 18:09 #583150
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sæll Lúddi minn

    Þú svona reyndur fjallamaður átt að vita það að
    menn fara nú ekki í svona orustur nema að
    vera ný tæmdur.

    Nú skil ég vel hvað þú ferð með mikið af naríum.

    kv. þinn alltaf gundur





    03.03.2007 at 15:17 #583146
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    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sæll Skúli fv. formaður vor

    Þetta er vistað í henni Ameríku en sem striming.
    Á vélinni hjá mér er þetta 132 MB.

    Láttu bara vaða og gefðu þér tíma Skúli minn, ekki
    gera það á morgun sem þú getur gert í dag.

    kv. þinn vinur gundur





    03.03.2007 at 11:54 #583142
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
    • Svör: 1091

    Takk fyrir þetta.

    kv gundur





    02.03.2007 at 23:51 #583138
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sæll Gunnar Ingi

    Við vorum um 6 tíma að ná þessum hvíta upp þannig að þú verður að þrauka smá en ég lofa þér því að seinni hlutinn er góður, td. fer Skuggi mikinn td. í Patrol laginu og endirinn er cool.

    Þolinmæði þrautir vinnur allar.

    kv gundur





    02.03.2007 at 22:05 #199833
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sælir félagar

    Núnar er videoið af Grímsfjalli 2007 þar sem
    Pattarnir fóru niður um ís komið á netið.
    Endirlega gefið komment hér á þráðinn.

    video 40 mín er hér: muna að hækka í græjunum.
    http://www.gundur.com

    kv gundur





    26.02.2007 at 20:25 #582114
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
    • Svör: 1091

    Sæll Mr. Grínland

    Þetta manst þú, en ertu búin að gleyma því að Lúther gaf upp 58 lítra í sömu ferð á diesel Patrol.

    góðar stundir ykkar gundur.com





    26.02.2007 at 15:48 #582110
    Profile photo of Guðmundur Guðmundsson
    Guðmundur Guðmundsson
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    • Umræður: 90
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    Sæll Magnús

    Svona er þetta fyrir breytinar, flækjur og fl.
    .
    [url=http://www.brian894x4.com/1FZFEspecifications.html:xsvnhqgt][b:xsvnhqgt]FZFE specifications[/b:xsvnhqgt][/url:xsvnhqgt]
    .
    kv gundur





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