RV8 with a slipped liner

Kit · Post by **Kit** » Tue Jan 05, 2010 10:22 pm

How much would it cost to repair a 4.6 block with a slipped liner?

paul c · Post by **paul c** » Tue Jan 05, 2010 10:39 pm

will it slip back?

sidecar · Post by **sidecar** » Tue Jan 05, 2010 10:55 pm

V8 Development charge about £850 to fit top hat liners. (You better check with them for the exact cost)

Kit · Post by **Kit** » Tue Jan 05, 2010 10:57 pm

paul c wrote:will it slip back?

no idea, i've never had it done before which is why i was asking here

Kit · Post by **Kit** » Tue Jan 05, 2010 10:58 pm

sidecar wrote:V8 Development charge about £850 to fit top hat liners. (You better check with them for the exact cost)

I would be looking at just getting the one cylinder treated, don't need uber performance.

Could also be a cracked block behind the liner?

sidecar · Post by **sidecar** » Tue Jan 05, 2010 11:19 pm

Kit wrote:
sidecar wrote:V8 Development charge about £850 to fit top hat liners. (You better check with them for the exact cost)
I would be looking at just getting the one cylinder treated, don't need uber performance.

Could also be a cracked block behind the liner?

I'm not sure that V8 Dev would do just one cylinder, they might not think that it is the "right way" to go about fixing a block. No harm in asking them though!

Yep the block is fairly likely to be cracked but that does not matter the repair will sort that out.

sidecar · Post by **sidecar** » Tue Jan 05, 2010 11:22 pm

Kit wrote:
paul c wrote:will it slip back?
no idea, i've never had it done before which is why i was asking here

It makes no "odds" whether it can be slipped back, slipping it back will not fix the problem!

kiwicar · Post by **kiwicar** » Wed Jan 06, 2010 6:45 am

Hi
it will be cracked behind the liner, that is why the liner slips, this company sell top hat liners at a good price http://www.westwoodcylinderliners.co.uk/ and are very helpfull, most good machine shops can replace them for you. You may want to get the block welded, i actually makes no differance as the flange at the top of liner seals the block.
best regards
Mike

SuperV8 · Post by **SuperV8** » Wed Jan 06, 2010 1:48 pm

Do you know if more than one is leaking?

Have you had the bolck pressure tested?

I went to Chesman engineering who do V8 devt's work. They would do one liner but the cost was a lot higher than just the total devided by 8 due to the setting up of the block.

In the end I had 3 leaky liners leaking so I had then all top hat linered.

I'm not sure that you could just have one slipped/ leaky liner replaced with a standard liner. Your block would need welding with the posability of craking/ leaking again.

If you haven't yet I would recomend hot pressure testing the block to check you only have one faulty. If there is more than one then it would only be a little more to replace all.

Tom.

Kit · Post by **Kit** » Wed Jan 06, 2010 4:09 pm

I don't think i'll bother then, it's going in an offroader so it's not going to be revved hard like it would be in a kit car so I don't need that kind of outlay on the engine.

Thanks for all the info though

Kit · Post by **Kit** » Mon Jan 11, 2010 5:28 am

Just wondering, is there anyway to check if a liner has slipped without the engine running or is it easily visible?

sidecar · Post by **sidecar** » Mon Jan 11, 2010 5:54 am

Kit wrote:Just wondering, is there anyway to check if a liner has slipped without the engine running or is it easily visible?

Apparently you can feel a small step between the liner and the surrounding block on the deck surface.

Of course the block could have cracked but the liner has not slipped, a pressure test would show this up.

ChrisJC · Post by **ChrisJC** » Mon Jan 11, 2010 9:37 am

The only sure fire way to prove a cracked block is as already stated, to pressure test it. There's a few threads on DIY efforts to do that.

Chris.