FREDSMITH

my 99my car with only 25k on the clock has blown its engine. Can anyone suggest a specialist in the south east who could help me with a re-build?

ski

was this a standard car?and did you get any warning?

FREDSMITH

yes- a completely standard UK car. No warning, it was just idling in the drive perfectly one minute then the miss fire started.

SPelham

My no.4 piston went about 3 weeks ago
All fixed and now working perfect thanks to ScoobySport.

My car has about 85,000 miles on it so you may expect somthing like this to happen but on a UK car with 25K

wrxrob

fred smith> can i ask what has it done or has it been looked at seems a bit strange for such a low milage lump.

nom

It never appears to make much of a difference on the milage.
To me, with a MY99/00, it'll go 90% of the time because the MAF is on its way out (misreading so fueling is way under). Loads of knocking weakens the pistons, then one of them goes...
Frequently the well-modded cars are very reliable... or at least the engine is (clutches & gearboxes are something else ), largely because they are typically monitored very well but also because they are set up correctly & looked after properly.
First thing to do with a scoob is lob in an AFR meter & KnockLink...

APIDavid

iTrader: (4)

API Engines Junction 12 M40 http://www.apiengines.com/

WREXY

Make sure you add a brand new MAF sensor to the engine after the rebuild cos if your engine popped due to a faulty MAF, like Nom has metioned, the MAF sensor will blow the new engine as well if it's not changed. It has happened from info on here a number of times. Change it for insurance even if the old MAF appears to be OK.

Agree with Nom on adding a Knocklink and AFR meter as well.

Cheers,

Wrexy.



[Edited by WREXY - 5/8/2003 11:53:44 PM]

X SOOOBY

my my00 threw a rod and put a lovely hole in the crankcase just cruising at 75 on the m25 no warning

47000 miles ecutec cold air kit dump valve decat new oil and filter every 2500 miles it just happens i guess

rally colin is fitting a short engine to it he lives in reading seems very genuine

Ian236

My 02 STi is in for a new short motor after only 8k miles - is this a record, big ends gone

WREXY

Ian,

Was there any piston damage at all or was it just the bearings?



Fredsmith,

Would you let us know what went on your engine, when the builder strips and inspects the damage? Just post in this topic.

Just gathering info from engine failures so we can see what the major cause is.

Bearings have gone on a lot of engines and I'm trying to determine whether it's from detonation, (ie the piston being hammered from det, causing the piston and the rod to put big strain on the bearings, which would lead to the bearing failure), or just plain bearing failure.

Bearings have failed many times and it has started from that little bugger, the MAF sensor going faulty, leading to det, then bang.

Please let us know what they find.


Cheers,

Wrexy.

nom

X Soooby - you likely had a warning - fitting a cold air kit! If not adjusted for (don't know if your EcuTek was specific to your car post-CAK - I suspect not?) the CAK'll blow'em every time!
It's the MAF again. It misreads the moment you start changing the airflow from the standard in-the-wing box; usually ok, but the CAKs just go too far
Once you have the engine rebuilt, I'd ditch the CAK or for real 'piece of mind' get the car mapped, and the usual meters n'stuff

[Edited by nom - 5/15/2003 4:53:08 PM]

Pete Croney

I agree with Nom.

The CAK's I've seen have a larger bore where the MAF sits. This means the air going past the MAF is slower and the ECU thinks less air is going in... so puts less fuel in.

Its a disaster waiting to happen.

If APIDave doesn't help out, add me to your list of people to call. We are in Basildon, Essex.

sparkster

Good comments by all. All ide say is try and get to the heart of the problem which led to your engine letting go in the first place.

The big end went on my engine, its been replaced but i still have detting probs. I am so out of cash now that i cant afford a remap so i'm having to be quite careful! My eye is permanently fixed on my knocklink

WREXY

Sparkster,

Did you have your MAF sensor replaced after the rebuild? If not it could be why you are still detting. It's a good idea to have this replaced after a rebuild. They're around 70/80 odd GBPounds.

Perhaps your engine let go due to a failing MAF sensor.

Cheers,

Wrexy.


[Edited by WREXY - 5/15/2003 9:40:50 PM]

sparkster

The engine did let go after fitting an induction kit. I'm driving a 93wrx. Supposidly the MAF's are pretty sound bits of equipment for the later models but you never know. I'll have a look - thanks for the advice

Mark

ChristianR

iTrader: (1)

do you want to rebuild your engine to standard, or rebuild it and make it stronger??? if the stronger option, I would suggest speaking to lateral performance (http://www.lateralperformance.co.uk/)

SiPie

Not nice mate....been there, done that

alanjack

Speak to Rally Colin, he is somewhere near Oxford. He is very good and very reasonable.


colin
E-mail Address(es):
colin_minton@hotmail.com




[Edited by alanjack - 5/17/2003 9:11:49 AM]