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You are here: Home / Guðmundur Guðmundsson

Guðmundur Guðmundsson

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Virkur síðast fyrir 8 years, 7 months síðan
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  • 09.08.2010 at 21:05 #699610
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    Guðmundur Guðmundsson
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    Er ekki bara málið að máta.
    kv. gundur
    [url:1fy9pk2l]http://www.f4x4.is/g2/main.php?g2_view=core.DownloadItem&g2_itemId=165683&g2_serialNumber=1[/url:1fy9pk2l]





    28.03.2010 at 11:08 #688412
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    Guðmundur Guðmundsson
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    Hvað segja menn um þetta:

    Shell Vesturlandsvegi mæting kl. 15:30
    Hvolsvöllur kl. 16:30
    Jökulrönd kl. 17:30
    Fimmvörðuháls ljósaskipti 19:00 til 20:30
    Hvolsvöllur
    Shell





    28.03.2010 at 10:19 #688404
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    Guðmundur Guðmundsson
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    Sælir félagar

    Hvað segja menn um Shell Vesturlandsvegi kl. 16:00 í dag.

    kv. gundur á fjalla Benza





    28.03.2010 at 08:36 #688400
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    Guðmundur Guðmundsson
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    Sælir félagar til er ég
    Við stefnum á jökul í dag sunnudag, 38 tommu Benz, (fjalla Benzi), tek fyrst eina fermingarveislu hjá TNT eða var það TVT, hm, óska Helenu, já og Tryggva og Stínu til hamingju með daginn.

    Spurning hvort einhver gæti komið með tímaplan, miða við að vera í ljósskiptum við gosið.

    Shell Vesturlandsvegi kl. 16:00
    Hvolsvöllur kl. 17:00
    Fimmvörðuháls ljósaskipti
    Hvolsvöllur
    Shell

    Kv. gundur (Guðmundur) gsm: 8628511





    08.03.2010 at 20:25 #686300
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    Guðmundur Guðmundsson
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    Sælir félagar

    Hér held ég að menn séu að fjalla um trúarbrögð, við TNT voru aldir upp í skúrnum hjá Bjarna Bjarna í Suðlist en þar voru á borðum bæði 427 og 454 vélar og voru þær notaðar í kvartmílu, sjálfur átti ég 350.
    Ég man ekki betur en Benni í bílabúð Benna, hafi verið með 455 pontíac í jeppanum bæði í torfærunni og kvartílunni. Ég get ekki gefið ykkur trúnna en ég get sagt ykkur sannleikann GM rúllar…

    kv. ykkar gundur





    28.02.2010 at 21:27 #685512
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    Guðmundur Guðmundsson
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    Sælir félagar

    Slóðavinir gerðu þetta strax frá byrjun, þetta setur bara pressu á menn að borga félagsgjöldin og vera með.

    kv. gundur





    30.12.2009 at 17:19 #673574
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    Guðmundur Guðmundsson
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    Já, Jón Snæland enginn annar!

    kv gundur





    26.12.2009 at 17:27 #672518
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    Guðmundur Guðmundsson
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    Sæll Kalli, bílinn fannst í Grafarholti og það var vegna þessarar auglýsingar á f4x4 sem bílinn komst til skila. Frábær síða þessi f4x4.is

    kv. gundur





    24.12.2009 at 17:13 #672514
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    Guðmundur Guðmundsson
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    Sælir félagar

    Bílinn er fundinn, óskemmdur!!!!!

    Takk fyrir hjálpina og gleðilega hátíð

    kv. gundur





    24.12.2009 at 14:57 #672950
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    Guðmundur Guðmundsson
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    Kæru f4x4 félagar

    Sendi ykkur öllum ósk um gleðileg jól og farsælt komandi ferðaár.

    kv. Guðmundur Guðmundsson (gundur)





    20.12.2009 at 20:20 #672500
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    Guðmundur Guðmundsson
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    Færa þetta upp, allir vakandi.





    20.12.2009 at 16:19 #672498
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    Guðmundur Guðmundsson
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    Sælir félagar

    Bílnum hans Valgeirs félaga míns var stolið hér koma myndir og þetta er 1992.

    Allir að vera vakandi!





    10.12.2009 at 21:19 #670372
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    Guðmundur Guðmundsson
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    Sæll Hjalli, þú getur prófað að tala við þá í Áliðjunni í Kópavogi, þeir breikkuðu fyrir mig Alcoa felgur. Þetta kostar pening.

    https://old.f4x4.is/index.php?option=com … mId=125566

    kv gundur





    10.12.2009 at 17:42 #668712
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    Guðmundur Guðmundsson
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    https://old.f4x4.is/index.php?option=com … mId=145673





    01.12.2009 at 18:25 #668698
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    Guðmundur Guðmundsson
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    Sælir

    Varðandi kúluloka og hraðtengi, þá hefur þetta fengist bæði í Barka og hjá Landvélum, varðandi kúlulokann þá er gott að gengjurnar ná vel í gegnum felguna hels með ró á móti í stað þess að snitta.

    Varðandi það að ballansera þá eru báðar leiðir færara það að ballansera og ekki ballansera fyrir sumar útfærslu getur þú ekki gert það með heildarbúnaðinn, td. með langa felgubolta.

    kv. gundur





    27.11.2009 at 20:58 #668670
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    Guðmundur Guðmundsson
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    Sælir félagar, flott umræða!

    Hér kemur mín reynsla, ég er búina að nota svona búnað frá því í febrúar 2005 sjá myndaalbúm undir gundur.
    Einnig er hægt að nota leitina og slá inn td. úrhleypibúnaður þá koma margir þræðir fram.
    Er búin að vera með þetta á þremur 38 til 44" bílum.

    Ég hef aldrei lent í vandræðum með snúningshnétengið að framan né aftan.
    Aldrei lent í því eða tekið eftir því að snúningstengið væri að leka
    Mikilvægt er að menn velji réttan búnað í þetta, td. þá er ekki sama hvað slöngur eru notaðar út í hjól,
    td. eru til tvær tegundir af svörtum slöngum í Landvélum en við notum þá stífari. Einnig eru til fleirri gerðir af
    snúningstengjum en ég tel rétt að ef menn versla þetta í Landvélum þá eigi menn að tala við Snæþór.

    Ég er mjög ánægður að Benni hmm er farin að nefna gund þegar hann talar um þennan búnað. :- P

    kv. ykkar gundur





    01.11.2009 at 23:02 #664512
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    Guðmundur Guðmundsson
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    Sæll Dagur

    Nei það er ekki oft sem Ofsinn verður kjaftstopp.

    En núna er það ekki hans að þakka heldur okkar hinna, hvar eru þessir 6000 meðlimir?

    kv gundur





    01.11.2009 at 22:40 #664508
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    Guðmundur Guðmundsson
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    Sælir félagar

    Hér er myndin af Jóni með viðurkenningarskjöldinn.

    Eins og sést á myndinni þá er Ofsinn farin að lýkjast Fjalla Eyvindi meira en Höllu og er það vel.

    Myndin ber nafnið: Sverð og skjöldur.

    kv. gundur





    31.10.2009 at 11:12 #207877
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    Guðmundur Guðmundsson
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    Kæri Jón Snæland

    Þar sem ég hef verið svo lánsamur að fá að fylgjast með störfum þínum síðustu ár og ferðast um landið okkar við hlið þér með f4x4, þá er það við hæfi að ég óski þér til hamingju með að hafa verið valinn heiðursfélagi Slóðavina 2009. Þegar ég sat í fyrstu stjórn Slóðavina kom ég fram með þá tillögu að koma viðurkenningarferli af stað þar sem menn sem höfðu skarað framúr í vinnu beint og óbeint fyrir Slóðavini yrði umbunað. Ekki grunaði mér þegar ég hringdi í þig og bauð þér að ganga í félagið okkar að þú yrðir orðin heiðurfélagi á rúmu ári. En svona vinnur þú nú Jón minn, þú flytur fjöll og slóða ef það hentar þér. Þú ert okkar sverð og skjöldur.

    Mynd af Jóni Ofsa Slóðríki Snæland með viðurkenningarskjöldinn er væntanleg.

    Til hamingju Ofsi

    þinn vinur Gundur

    Viðhengi:
    1. 1222_f33f00aaacb5efa6dca2aedf6335c77d




    27.07.2009 at 20:35 #652560
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    Guðmundur Guðmundsson
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    Sæll Garðar, þessar vélar hafa komið mjög vel út.

    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.





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