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Old Apr 6, 2006 | 03:05 PM
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Hey,

When im using my xr2i - on start up and when driving most of the time it smokes and blue/black smoke when i accelerate harshly - any ideas what causes this problem?

and will replacing the cyliner head, tappets etc fix the problem and give my car a better performance? 107,000 miles on the clock

Cheers
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Old Apr 6, 2006 | 03:16 PM
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Probably piston rings going mate to be honest, with a bit of overfuelling.

Blue smoke is oil burning, black smoke is un-burnt fuel.
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Old Apr 6, 2006 | 04:07 PM
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so replace the cylinder head and it'll all be sorted?
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Old Apr 6, 2006 | 04:11 PM
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Not if its piston rings mate, full re-build if it is.

Compression test will tell you a lot.
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Old Apr 6, 2006 | 04:17 PM
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ok, how do i get a compression test?

local garage or speciallised dealer?

I live in Rochdale, Lancashire

ps. dont know if this helps but when ive been driving a while on a straight ie motorway - the car jolts asif theres power lost
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Old Apr 6, 2006 | 04:19 PM
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You can do one yourself, if you have a tester, or borrow one. Just a pressure gauge basically.

The valve stem seals on these are also prone to go, but if it smokes all the time its more likely to be rings, hence the test.
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Old Apr 6, 2006 | 04:21 PM
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dont know if this helps but when ive been driving a while on a straight ie motorway - the car jolts as if theres power lost


cheers for all your help
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Old Apr 6, 2006 | 10:30 PM
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That doesnt really help to identify the problem but it certainly doesn't sound to good.

No problem thats what this place is for (i'll PM you with my bank details for payment lol )
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Old Apr 6, 2006 | 10:46 PM
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there is one posibility, i had a 1600s fiesta on a H, same as the 2i just on carbs,

every morning would start up and huge cloud of smoke, then soon as warm goes away, if left at low revs for a time it would smoke again.

Long story short, it was the stem seals, they are little ruber washers that seal the valves at the top, under the spring. easy to check too, if you drop the rocker cover off, just look through between the coils of the springs, you will see a band around it about half way up if the seal has sliped, just get a small screw driver in there and push em down til they seat corectly and should fix it temporarily!! but means you need to rebuild the top end to replace em which is a head off job im afraid, how ever i ran on it like that for about a year, when smoke started again i just repeated the process,
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