GolfGTIforum.co.uk
General => General discussion => Topic started by: ~I_luv_my_VDub~ on 02 March 2006, 16:42
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I have a Mk2 Golf GTI, H reg.
It is a metallic royal blue colour with 'big bumpers'. The upholstery is not ripped/fag burned/tatty and the body work is good- it has about 5 small rust patches in various places. Some tosser has recently stolen the 'Golf GTI' badge from the back. It has it's original wheels.
I changed the engine as the original one conked out. The actual car has done 125k but the engine I bought has done 43k. (It was a like for like engine swap.)
Problem now is the timing is out and it has no compression. Unfortunately, I do not have the money to pur into it to get it up and running again ans was wondering if anyone could give me some advice on how much I should ask for it in it's present condition. I know it is not exactly easy just from my description but I have tried to be as accurate as poss.
Any replies would be much appreciated.
Many Thanks.
:wink:
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few questions..
8v or 16v ?
3dr or 5dr ?
are you positive just the timing is out ? something more sinister could be causing the compression loss ?
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Sorry forgot those bits!
8v, 5 door.
Mechanic has looked at it so am sure timing is out.
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So it's a non runner, 5 doors, and is an 8v, i personally wouldn't pay more than a few hundred if that for it.
If it's just the timing then you just need to get the mechanic to sort it, it's a half hour job tops, and costs all of £20. Compression sounds like the gasket has failed somewhere so is more likely to be more serious.
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It has a new head gasket on it.
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£150 max.
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Compression has nothing to do with timing, doesn't sound good :sad:
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new head gasket at 43k... hmmmmm
i think ill go with slck on this one.. sounds like there may be a little nasty there somewhere.
ahs the mech mate given you a quote for forks at all, that would be a good indicator as to whats wrong with it..
would have thought if it was justa timing issue he would have done that..
no compression means there is a leak somewhere, poss the head wasnt skimmed before the new head gasket was done. im assuming it over heated.. or even worse there could be a crack somewhere..
bit suspect that someone would swap a 43k engine for a scrapper 125k one
hope you get it sorted..
just to let you know i have sold a 5 dr gti, was small bumper and a bit up on miles at 165k. but it was a runner with t&t alloys and all worked with no rust and that went for £350. was an f plate.
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i'm not being funny but why is it sus that i would take the crap engine out and drop a younger one in it?!
i bought it, had it 5 weeks and it died- i wasnt gonna give up on it that easy!
:cry:
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i think he got the wrong end of the stick.. nothing wrong with putting the newer engine in.
i do think though, that your mechanic isn't being entirely truthful. whereabouts are you in the country, maybe someone here can recommend someone local, or even come out and have a look at it.
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:smiley: if the timing is out the compression will be affected as the valves will not be opening at the correct time thus giving low compression or no compression
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barp - wrong.
If the timing is out there will still be compression across the head, not as much but there will still be some. The timing relates to how much fuel air mix will be allowed in, if the inlet valves open to soon (advanced timing) then they will be hit by the piston on its upward stroke (called pinking) which can result in the valves getting bent and f**king the head. It will also mean that the explosion will be chasing the piston back down the cylinder meaning that there will be hardly any power at all. If the valves open too late (retarded) they will miss the compression stroke and fill the cylinder too late, the resulting explosion will mean that the mixture is crashing into the piston head as it comes back up the cylinder and can cause the head to melt, and all the excess gas will still be in there from the previous explosion as the exhaust cam will not be open long enough to let it all escape.
Get the timing sorted out by a garage (20min job tops) and costs nothing.
The compression you need to get the head tested for any leaks, breaks in the seals of the gasket and at worst cracks in the head. It has no direct relation to the timing.
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if the valves hitting the head cause pinking how can pinking also occur when poor fuel is used this surely does not make the valves hit the pistons
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pinking has nothing to do with fuel. I think you need to get your head in a book on engines and find out about the 4 stroke cycle and how timing can affect the engine. The only thing that fuel will change is whether it is running rich or not.
Pinking is a direct product of the timing being out and the cams pushing the valves open and then the piston head crashing into it. NOTHING to do with fuel.
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when you said swapped the engines i thought you ment someone had swapped you and engine for your old one...
i think it seems lik eyour tyring to look too much into this engine thing, if its just timing as you have been told, surely is more benift to you to get the timing adjusted and sell the car as a runner rather than a non runner which realisticly is worth scrap value..
im sorry but the peeps who will be looking at it will be breakers as the car will be worth far more in bits.
sorry if you think im being harsh..... but hasnt your mate quoted you for what it could be.
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Pinking can be caused by using the wrong fuel, ie. when the RON is too low so the mixture ignites to early.
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thanks for that i thought poor fuel could cause pinking :smiley:
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Not convinced personally, as even using 95 RON petrol wouldn't harm your engine, as it's only an 8v and they run fine on 95RON (no i am not 8v bashing). Anyhow, pinking isn't the issue, it's a lack of compression across the head. As i said if you are selling it then you need to get a compression test done on the head to source and cracks, leaks etc.
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mornin all,,this sounds like a heated debate :smiley:,, I'm not a mechanic but could your cam belt slipped a tooth or has it been replaced recently and not timed up right?? may be this is why the mech couldn't of done the timing??
good luck tho, vaughny
edit::im presuming when you talk about timing your on about dizzy timing,,see told you im not a mech,lol :embarassed:
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Pinking is pre-ignition which is when the mixture ignites before the compression stroke has been completed, hence why eventually the piston crowns will burn out.
This can be caused by timing being too advanced, fuel which has a low octane rate so cannot resist detonation, hot spots or a burnt out valve.
Anyone want to add to that? :grin:
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think im gonna stay outta this one
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even so that's not the timing causing the compression loss, it's knackered pistons.
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think i know.... but who am i to know???
so ill sit on the bench and let all the 'know it alls's give there bit.... :laugh: :laugh: :laugh:
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well im no know it all at all..
i just get in turn the key and thats it, if it startd good if not shout at it till it does..
i think i know the right end of a screwdriver to use..
lol
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i think its the flux capacitor :laugh:
its all gone way over my head,hope you sort it.
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Pinking is pre-ignition which is when the mixture ignites before the compression stroke has been completed, hence why eventually the piston crowns will burn out.
This can be caused by timing being too advanced, fuel which has a low octane rate so cannot resist detonation, hot spots or a burnt out valve.
Anyone want to add to that? :grin:
this is correct
pinkling is not caused by cam timing but ignition timing :smiley: