BarnshaW
Member
Registered: 25th Oct 06
User status: Offline
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little while ago i found my car was a bit low on compression (low being nearly half on cylinder 4)
engine has been removed and stripped and turns out some of the valve seats have worn, headgasket is knackeredand cylinder heads are scored. Will have some pics to upload shortly. they said they have not seen such a problem before but suspect it may have been done previously after engine has been subject to massive overheating or a bad map
to cut a long story short the place the engine has gone to are quite friendly with my dad for other various businesses of work and they have done a blinding deal on new forged internals, so car is going to have new pistons, rods, head studs, shells fitted this week
not quite what i was expecting but worth doing whilst engine is out and apart. I have a question though, what is the usual run in period on an engine when having such things replaced? also i presume they will put a new map on just for the run in period.  
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Nath
Member
Registered: 3rd Apr 02
Location: MK
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Sooooooooooo whats the damage to the wallet?
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John
Member
Registered: 30th Jun 03
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Are the rebuild stories about these true in general?
Everybody who gets one on here seems to spend the cost of the car getting a rebuild.
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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chocolate pistons?
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BarnshaW
Member
Registered: 25th Oct 06
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i think there is alot of scaremongering john and alot of people modifying them incorrectly resulting in them going bang, they are pretty strong otherwise.
i think its a case of while the engine is out for a problem alot of people have the other bits replaced as a precaution as its quite alot of labour involved.
and nath - roughly around 2k
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chris_uk
Premium Member
Registered: 8th Jul 03
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do about 500 miles then drop the oil and renew it..
then drive it like a cunt.
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Nath
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Registered: 3rd Apr 02
Location: MK
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Not as bad as I was expecting tbh.
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BarnshaW
Member
Registered: 25th Oct 06
User status: Offline
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is it a different viscosity oil during a running in period?
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gavin18787
Premium Member
Registered: 22nd Feb 05
Location: Basildon, Essex
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sometimes they use mineral dont they?
Drives supercharged Tec with torque  
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fir3vip3r
Member
Registered: 14th Jun 06
Location: Stevenage, Hertfordshire
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2k is very good indeed
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CorsAsh
Member
Registered: 19th Apr 02
Location: Munich
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Mine's only cost 1k this time around. Winner!
...so far...
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chris_uk
Premium Member
Registered: 8th Jul 03
User status: Offline
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i dont know what you use normally, but in the vx im running a slightly less viscous oil for the 500 miles
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deano87
Member
Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
User status: Offline
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Reminds me of the hassle with my Punto. An unexplained mystery. My work wasn't so bad and was £1200 at Fiat.
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Mertin
Member
Registered: 12th Oct 05
Location: Scotland
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So the garage saying the compression was low was genuine, when a few people said that it would be the garage trying to coin in iirc?
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Stu-G
Member
Registered: 27th Apr 04
Location: wirral Drives:Corsa16v
User status: Offline
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i know with my let motor i was told to use slightly thicker oil (15w/40) for the first 500 mile then replace with the 10w/40 and use that for another 500 mile on standard boost and not to go nutes then again another change and go nuts,but they normally say around 500 mile run in period
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Eck
Premium Member
Registered: 17th Apr 06
Location: Lundin Links, Fife
User status: Offline
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quote:
Originally posted by John
Are the rebuild stories about these true in general?
Everybody who gets one on here seems to spend the cost of the car getting a rebuild.
Tbh, people aren't quick to shout about a car NOT breaking down  So a lot of what's posted on the 'net is scaremongering. My dad bought his Impreza with 31k on the clock, it is now on 85k and NOTHING has went wrong with the engine. Random mishaps like a sticky piston on a caliper is the worst it's been.
But on topic, that's bad luck really  But it could have cost a damn sight more than that to repair
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belton
Member
Registered: 23rd Jul 09
Location: Kent
User status: Offline
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They seem to be really good actually. A guy I work with has had an 03 one from new, he had the engine replaced or rebuilt at 15k by Subaru because of some common fault. But it's now on 125k'ish and he hasn't had a problem! It's used daily and for all the family, dog etc. Seems really good. But then has only had a backbox and spoiler done
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IvIarkgraham
Premium Member
Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
User status: Offline
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and so it begins
going for more power?
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BarnshaW
Member
Registered: 25th Oct 06
User status: Offline
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hopefully should be able to squeeze a bit more, turbo is good for 430-440 but i will be happy with anything around the 400 mark. Think i might need to upgrade headers to push for more.
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DaveyLC
Member
Registered: 8th Oct 08
Location: Berkshire
User status: Offline
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You'd have been better off selling as is and buying another one thats already had the work done..
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Nath
Member
Registered: 3rd Apr 02
Location: MK
User status: Offline
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I disagree with that. I'd rather keep my own knowing 100% that its been sorted.
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BarnshaW
Member
Registered: 25th Oct 06
User status: Offline
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yea i have to go with nath on that one, i got the car originally very cheap with some very expensive bits on it already so happy to spend the money on it now really
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3CorsaMeal
Member
Registered: 11th Apr 02
User status: Offline
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how did you finding it was low on compression come about?
i've been advised to do a compression test but part of me doesn't really want to know.
was the car driving ok?
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BarnshaW
Member
Registered: 25th Oct 06
User status: Offline
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tbh i didnt know, guy when it was being serviced said it didnt sound right on turnover so whilst the spark plugs were out for a service he done a compression test
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