infrasilver
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- 4 Oct 2010
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As for the IMS bearing, go for the original again with seals removed, I've done this whenever I've had the engine apart. Or have the block machined to accept the later, larger bearing.
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I was interested to find out which make/version of liners had failed so the same ones didn't go back in. On further research there is now some confusion on whether it was strengthening work on the bores. Not quite sure what strengthen work means in relation too closed deck design?. Anybody care to enlighten me.MisterCorn said:I think it is largely irrelevant who did the previous work, unless it is thought that the failure was caused by some debris they left in. I'd be interested to see photos of the bearings though. We know that they wear and around 100k can be rebuild territory depending on usage patterns.
MC
jond58 said:Sorry to add confusion but we're Porsche not offering the short block at a massively discounted price ? I'm sure I read somewhere a figure of around £4K? Given the '100k mile' concern and my useage as a weekend toy of 5k miles for four grand I'd get 20years of useage?!?
i looked into that as well with Design911 Uk but found as my crank is not serviceable I would have lost the return of the surcharge £4K ish?jond58 said:Sorry to add confusion but we're Porsche not offering the short block at a massively discounted price ? I'm sure I read somewhere a figure of around £4K? Given the '100k mile' concern and my useage as a weekend toy of 5k miles for four grand I'd get 20years of useage?!?
Thanks for this. I am a bit clearer now on what has failed now. which looks to be the original cylinders.bazhart said:I'
The pictures you showed me yesterday David are original Lokasil cylinders but with support rings fitted – hence them being described as 'closed deck". They are NOT liners nor Nikasil plated. They don't look like our work either (well certainly not anything we've done for the last 15 years).
Hope that helps !
Grant
DAVIDGT996 said:Thanks for this. I am a bit clearer now on what has failed now. which looks to be the original cylinders.bazhart said:I'
The pictures you showed me yesterday David are original Lokasil cylinders but with support rings fitted – hence them being described as 'closed deck". They are NOT liners nor Nikasil plated. They don't look like our work either (well certainly not anything we've done for the last 15 years).
Hope that helps !
Grant