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Rebore costs

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Tomb:
Doing drag racing means we do this job several times a year on two engines, I have polished the chamfers and polished a small radius between the bore and chamfer. Using engine oil and fitting the block over 2 + 3 pistons first the block almost falls on, then rotate the crank slightly to lift 1 + 4 pistons and drop the block onto them, the rings slide in easily. Best done with two people, one each side of the engine.

kevski:

--- Quote from: Tomb on March 03, 2017, 09:16:59 AM ---Doing drag racing means we do this job several times a year on two engines, I have polished the chamfers and polished a small radius between the bore and chamfer. Using engine oil and fitting the block over 2 + 3 pistons first the block almost falls on, then rotate the crank slightly to lift 1 + 4 pistons and drop the block onto them, the rings slide in easily. Best done with two people, one each side of the engine.

--- End quote ---

Just the ticket, i have never used coke cans, plastic bottles, bits of drain pipe, or even ring clamps, and have never broken a a single ring, you just take care and do as tomb says .

Underdog1:

--- Quote from: llessur on March 02, 2017, 09:13:45 PM ---Thanks everyone. I took them in this morning. My only concern is that there is not going to be a great deal of wall thickness left at the bottom of each sleeve and the loss of any usable chamfer may mean a faff with the rings. Just an idea but is it possible to sick two pistons in the barrel first then just fit the gudgeon pins rather than attempting all four piston whilst lowering the cylinders ?

--- End quote ---

That bloke on hackaweek did something sort of similar by fitting pistons and conrods in that barrels and then fitting them to the upper crank case, looks an awkward way to do it

https://youtu.be/y-CsqUiatKk

Are you not able to add a small amount of new chamfer to the bottom of the sleeves?

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