Liner removal

[kob666e]

I am trying to remove the liners from a 4 engine, and they are proving to be rather stubborn, do I just keep using brute force and ignorance or is there an easier way to shift them?

 

 

Justin

[TR 2100]

I am trying to remove the liners from a 4 engine, and they are

proving to be rather stubborn, do I just keep using brute force

and ignorance or is there an easier way to shift them?

 

Hi Justin,

 

Brute force - certainly, but not too much ignorance.

 

It's not uncommon for these liners to be held in place by the

hard gunge that inevitable builds up inside the block.

At least when you get the liners out, you'll be able to make

sure the block is clean.

 

A big 'ammer is needed, but if you are wanting to re-use the liners,

use a block of hardwood or something to avoid damaging the liner,

and hammer away all round the base of the liner (not just in one spot).

 

If you are NOT going to re-use, just hammer away.

 

AlanR

[NickKerfoot]

Hi Justin

 

If you fancy a more subtle alternative, an effective puller can be fashioned fairly easily. A steel plug needs to be made so it locates in the liner bore and overlaps the bottom edge. A threaded bar (suggest 1/2in thread or bigger, high tensile), is then passed through the centre of the plug and up out of the top of the block. The bar is then passed through a suitable "bridge piece" positioned above the liner - this could be a welded up afair or a piece of box section and some hardwood blocks. The liner was then simply withdrawn by tightening a suitably strong nut onto the bar. Worked a treat on an engine I dismantled a few years ago... With a different size plug, the same setup can also be used for replacing cam bearings.

 

Hope this of interest...

 

Nick.

[kob666e]

.

 

If you are NOT going to re-use, just hammer away.

 

AlanR

 

 

 

 

 

Alan,

 

 

thank you, followed your instructions and now have liners removed.

[RogerH]

Hi Justin,

you brute!!! I was going to add to Nicks method - after tightening the big nut in order to withdraw the liner, if it was still proving difficult to release then a

well engineered clout with a hammer on the bottom end of the extractor studding. With the tension of the extraction studding and the clout, the liners would literally fly out of the engine (well perhaps not quite fly)

 

 

Roger

[kob666e]

Thank you for your suggestions, a one foot lenght of scaffolding pipe, a decent lump hammer and a few swift blows had them out in no time. A good power washing and now it's time to order parts.............