BF Mk 2, not unopened anymore, not stock turbo anymore

[Puffwagon]

It's nearly winter, maybe time for some sleeves

[Tom Tucker]

Might be on the cards 

[Puffwagon]

Yerp 

[Tom Tucker]

@Puffwagon ever heard of just sleeving cylinder 1&6? Apparently it's becoming more common 

[Puffwagon]

Yes I have heard of just sleeving a broken cylinder before. While this rubs my need for symmetry and uniformity the wrong way, in reality it is a valid repair. Make damn sure the machine shop knows what they're doing, not all machine shops are equal and there is a lot that goes into sleeve selection etc.

[Tom Tucker]

My block isn't being repaired, it will be replaced. But apparently it's becoming more popular to prep blocks with only cyl 1&6 sleeved. Presumably those two fail most commonly, or maybe it has to do with water jackets on just those two?

[Puffwagon]

I hadn't heard of just 1 and 6  being done but maybe a high profile workshop has seen a trend in their machining?

 

I just gave a couple of blocks some measuring and inspecting and 1 and 6 don't look or measure any different, as far as potential bore thickness goes. The bores themselves aren't much chop.

 

None of the bores are siamese so they are all equally weak in that regard.

 

I would just do the lot if I was already there getting it done.

Edited 26/03/25 08:09 AM by Puffwagon

[Tom Tucker]

Thanks for confirming. This will take a little while unfortunately. Was hoping to have news of 700kw by now

[Puffwagon]

What's the status of the vehicle now?

[Tom Tucker]

Engine out. It will now get some interior stuff done while a new block is sourced and prepped. Bit of trimming, nothing crazy, but will go somewhere else in Melb for that, then back to IMS.