Cambelt gone? Worth repairing?

[M_C]

Love my Subie GTB. So much its the second I have owned. Till the day the music died...

Cruising down the motorway the engine died suddenly. Now just turns over fast as if there is no compression. Seems like typical of a cambelt failure? Bugga as car regularly serviced too.

I am guessing the engine is not worth repairing assuming the cambelt has gone as likley too much damage being an interferrence engine?

Can anyone suggest good source for another engine?

Or maybe have an engine for sale?

I am in AKL and have posted add in WTB section too.

Thanks!

[nickmcgill]

Ez30 - chain driven

[jost]

Try a used belt, Pull it apart and put a used belt on, kick it in the guts and see if it runs as it should, if it does go shopping for new bits, if not find a replacement motor, It\'s not a huge amount of extra work and you will have to pull the radiator and other bits anyway either way.

If you were closer i\'d come and do it for you as i have a few used belts here, i\'m sure someone close to you has a belt you can use.

[Eight_dollar]

unless its got aftermarket cams 99% chance it will be fine with a new belt

[jost]

Also a useful note, If the motor is ok buy the belt and bits from either Partmaster or BNT, Here in CHCH they both supply genuine subaru hydraulic tensioners (as the aftermarket ones had issues) at less than trade from Subaru, The waterpumps are the same as genuine and the idlers are also just the same, main difference is a saving of about $200

[titian]

Do a leakdown test first to see if valves are seated...Easy to do with the belt broken. If each pot holds pressure then YAHOO away you go with another belt ;D

[Guitar_Guy]

Assuming it can\'t be repaired, check this listing out. Seems to be a tidy engine with relatively good kms on it and the trader is offering free shipping, if I had $800 I\'d be buying it and doing a single turbo conversion on it. http://www.trademe.co.nz/motors/car-parts-accessories/subaru/engines/auction-601780207.htm

[M_C]

Cheers guys. Had a mate pull covers off. Tensioner bolt had gone. He put a new belt on it but NOGO. RIP engine.

Now costing up new engine.

[Eight_dollar]

really? - is he 1000% sure the belt timing is correct?

This is almost unheard of

[M_C]

Pretty sure the timing was OK with the belt we put on. He had worked at Subaru NZ and knows the cars?

I thought they were interferrnce engines?

[Guitar_Guy]

From what I have read... 1994-1997 SOHC engines were non-interference, all DOHC and SOHC dated after 1997 are interference. Sounds like there might be bent valves going on in there.

[Eight_dollar]

 Guitar_Guy said:

From what I have read... 1994-1997 SOHC engines were non-interference, all DOHC and SOHC dated after 1997 are interference. Sounds like there might be bent valves going on in there.

This is not true

[jost]

Seems odd that it didn\'t go at all, should have still started just sound like crap. Possibly something else causing it not to start also?

[Eight_dollar]

 jost said:

Seems odd that it didn\'t go at all, should have still started just sound like crap. Possibly something else causing it not to start also?

correct - it would have to have bent valves on ALL cylinders to not even run

[jost]

 Eight dollar']

[quote name='jost said:

Seems odd that it didn\'t go at all, should have still started just sound like crap. Possibly something else causing it not to start also?

/quote]

correct - it would have to have bent valves on ALL cylinders to not even run

And that you would have noticed, would have gone bang and locked up.

I\'d be double checking timing and checking for error codes.

[lachlan]

It wouldn\'t lock up bending valves .

[Guitar_Guy]

Excuse my ignorance and please correct me for being wrong (I am dead keen to learn everything I can about these engines) but when the timing belt snaps or something similar like this case, does it not cause the pistons to hit the valves and bend them etc? Thus interference engine?

I also found this, just incase anyone else is interested http://www.scoobyenthusiast.com/subaru-faq/which-subaru-engines-are-interference-what-subaru-engines-are-non-interference

Looks like I was on the right track but not quite right.

[Eight_dollar]

99% of the time both DOHC NA and turbo version are perfectly fine

Yes they are interference but due to the design with 4 cams - the cams roll onto the back of the lobes when the belt breaks which leaves the valves shut

Evo\'s etc with only two cams - end up with 4 or more valves left open when the cams stop