Alusil refinishing ?

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I understand the honing/lapping process and I'm interested if anyone has had an Alusil block successfully honed and by who in the UK ? Capricorn, Serdi, and Hartech don't seem interested, so any other suggestions ?

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LarJammer said:

if hartech say no then its probably not viable anymore. however i believe porsche have started remaking engine blocks for 944's again. istr they were around the 2k mark which i think is reasonable value.

Where did you hear about Porsche remaking the engine blocks ?

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Are Sutton still trading ? If a new 968 block with piston oil squirters and the crank girdle and balancer shaft covers is £2k I'd consider that route.

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I had seen that, thanks though.

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Emailed Serdi a couple of times, no reply. Dry liners are what I'm considering, can you supply them nickel ceramic plated ?

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westwood35 said:

I have spoken to Serdi this morning and they have not seen your email. They can alusil your block or fit our liners. We do not provide coatings on our liners. Use the email on the Serdi website.

Thanks for mentioning this to Serdi, it was a few months ago so perhaps it got overlooked. I want to have the pistons in hand before I have the block refinished but I'm having issues sourcing the Wossner custom pistons at the moment.

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Are the liners also fixed into place with a Loctite solution ?

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Cheburator mk2 said:

The liner is interference fit and is also TT shaped with the flange on top. The block gets heated to approximately 200dec C, the liner is chilled and then it slots in. When both are cold, the block is decked. Zero chance of the liner going anywhere, especially that the Westwood liner comes longer and is cut to size before it gets inserted. I have used Westwood twice and so far I am happy to report zero problems with them. Btw, I would recommend Carl from Racer's Edge in California for getting custom Woessners.

AFAIK The liners are usually cooled in liquid Nitrogen, the block heated in an oven. The liners should be held down during the cooling phase to prevent them moving upwards. I've spoken to Karl a few times but unfortunately Wossner have told him not to supply to Europe now .

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My mum lives in Arizona so Karl could send the pistons there. 104mm custom pistons aren't £400 unfortunately.

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£665+... .

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If you get stuffed for 20%+ on top it spoils your day though.

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LarJammer said:

blade7 said:

Where did you hear about Porsche remaking the engine blocks ?

there was an article in a recent porsche mag.

I never could find out if this was fact, if it is OPC Cambridge didn't try very hard to source one...