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dddp!
Fordmods - Smokin em up
Posts: 243
Joined: 16 Nov 2004
Location: Bunbury WA, Australia
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 Posted: Tue Feb 22, 2005 11:47 pm Post subject: timing belts, what happens when they fail? |
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curious to know, will my ef 6cyl survive a broken timing belt if it breaks, or will it also break/damage anything else, piston/valve, if it lets go?
i had a telstar a few years ago, timing belt broke at 100kph with no other damage done, hopefully the falcons the same |
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EBXR8380
Fordmods - Getting Side Ways
Age:55
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Location: Penrith NSW, Australia
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| Posted: Wed Feb 23, 2005 1:46 am Post subject: |
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They have a chain and should be replaced when noisy..If they break you could loose your whole engine...
Belts should be replaced at 100.000 lmrs..
I guess chain can go further depends on service history and abuse / driving style... |
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dddp!
Fordmods - Smokin em up
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| Posted: Wed Feb 23, 2005 8:09 am Post subject: |
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| thanks for that, never heard of a chain letting go, should have looked in the manual i suppose, i just thought bels are so common these days it'd be a belt |
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Punnisher_42
Fordmods - Getting Side Ways
Age:26
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Location: Tingalpa QLD, Australia
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| Posted: Wed Feb 23, 2005 12:29 pm Post subject: |
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Belts are common on free revving engines.
because the falcons are not ie: the valves drop lower than the maximum height of the piston, they use a chain for better reliability.
as a rule of thumb, if you blow a head gasket, replace the timing chain while your at it. The results of valve and piston colliding at 2000rpm are catistrophic!!! |
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Waggin
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| Posted: Wed Feb 23, 2005 1:24 pm Post subject: |
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I've snapped 3 valve springs, but never done a timing chain.
Only 1 of the snapped springs caused damage. All depends where the spring breaks. |
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AKO
Fordmods - Getting Side Ways
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Location: Mackay, Far North New South Wales. QLD, Australia
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| Posted: Wed Feb 23, 2005 6:54 pm Post subject: |
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| My brother had a Laser with some wizz bang turbo motor in it. He snapped a belt doing a burnout, at approx 5500 rpm and the only thing needing replacement was the belt. As a mechanic I thought it impossible but was I wrong. |
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JOSE
Fordmods - Getting Side Ways
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| Posted: Wed Feb 23, 2005 7:07 pm Post subject: |
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| i would get it replaced before it lets go, something went wrong in the timing system in mums EA, it snapped 1 rocker arm clean off, and stuffed the rest bigtime, the lazer probably lived because the valves couldnt hit the pistons when the belt went, my ED has developed a noisy chain so im gonna start looking at getting it fixed (f**k its a big job, radiator+aircon condenser + all pulleys+ belts ahve to come off) |
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xpression
Technical Contributor
Age:23
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| Posted: Wed Feb 23, 2005 7:18 pm Post subject: |
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| it really depends on the car.. some cars bend valves every time, others never do, and some depends on theyre mood |
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madmax
Fordmods - Getting Side Ways
Age:45
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Location: Skye VIC, Australia
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| Posted: Wed Feb 23, 2005 7:20 pm Post subject: |
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| JOSE wrote: | | (+aircon condenser ) |
Say what!!!
You don't need to remove the condensor. Remove the radiator and you will have more than enough room, to remove the harmonic balancer, belts, timing cover etc. |
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JOSE
Fordmods - Getting Side Ways
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| Posted: Wed Feb 23, 2005 7:44 pm Post subject: |
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| dont ya? oh well my bad, i figured it would be easier with it out too |
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madmax
Fordmods - Getting Side Ways
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| Posted: Wed Feb 23, 2005 9:30 pm Post subject: |
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| JOSE wrote: | | dont ya? oh well my bad, i figured it would be easier with it out too |
You can if you want, but it'll save you the cost of de-gasing & re-gasing if you leave it in. |
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4.9 EF Futura
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Location: Adelaide CBD SA, Australia
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| Posted: Thu Feb 24, 2005 1:17 pm Post subject: |
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If you want some pics, I understand EFFalcon had some horrific photos of what happens when piston meets valve.
*ughhh* makes me cringe just thinking about all those broken bits of metal. |
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