Dexta liners

[Samc123]

I have got a 1962 dexta, whats a good method off getting the liners out?. I am going to purchase the full engine overhaul kit from agriline, is there anything else important to change, while Ive got it in bits?..

[russelm]

I had to have mine machined out and the new ones pressed in.

Then of course they need boring to size

[Brian]

As Mark says the best way to get the liners out is by having them pressed or machined out although I do know people who have done it themselves by welding a ring in the liner and shrinking it so that it will push out.

Dexta liners were originally a press fit then bored to size and, in the past, we had quite a few posts from people who fitted new liners without boring them out. The result was usually a seized engine after a short run, however after=market suppliers sometimes supply liners for the 3.152 that is fitted to the MF 35. These push into the bore and have a retaining lip at the top. The Dexta block has to be machined to take this retainer. I would also suspect that you have the 152 liners in your kit rather than the ones for a 144 Dexta engine. You need to check this, it will be no problem and you will not have a "Super" Dexta after youm have fitted them, just a Dexta with a bigger bore.

[bennyo]

Over the weekend I removed the old liners out of my Dexta engine block. Made up a disc on the lathe to fit the top of the liner to allow it to be pushed through. Initially tried to pull the liners through with a piece of threaded bar attached to the machined disc, winding a nut on the threaded bar using a large shifter. Found the liners were way too tight a fit to remove in this way.

Fortunately I work for a company with a large workshop so was able to use the press to push them out.





As Brian mentioned, the old original liners that I removed were just a straight press fit and the new liners (from Bare Co overhaul kit) have the retaining lip. So currently have the block in being machined to allow the retainer to fit.