flatlander · May 2, 2012

Having bought a set of Allmakes 4x4 pistons and rings, +20 thou, for my rebore, I tried to find out from the supplier and Allmakes if the rings come pre-gapped, as I understand the genuine LR are.

neither knew, so just wondered if anyone here knows. The alternative is to try the gap myself, but might just save myself the cost of a pair of ring pliers, and the grey hairs caused by tension while fiddling with the brittle things.

jamesmartin · May 2, 2012

flatlander said:
Having bought a set of Allmakes 4x4 pistons and rings, +20 thou, for my rebore, I tried to find out from the supplier and Allmakes if the rings come pre-gapped, as I understand the genuine LR are.

neither knew, so just wondered if anyone here knows. The alternative is to try the gap myself, but might just save myself the cost of a pair of ring pliers, and the grey hairs caused by tension while fiddling with the brittle things.

rings dont come pre-gapped lr or other ,bores are machined to piston size not book size as pistons vary per batch some upto 3-4 thou,

flatlander · May 2, 2012

jamesmartin said:
rings dont come pre-gapped lr or other ,bores are machined to piston size not book size as pistons vary per batch some upto 3-4 thou,

Thanks James, I suspected there was no short cut. I'd better get practicing

jamesmartin · May 2, 2012

tipex one side so you know which way is up on each ring

pos · May 2, 2012

flatlander said:
Thanks James, I suspected there was no short cut. I'd better get practicing

It's not a difficult task, just time consuming. When you push the ring down into the bore to check the gap, make sure that you push it down into the bottom quarter of the cylinder and then check the gap. It must also be sat flat in the bore, so use a piston to push it down. When filing the gap larger, do it in small increments and make sure you don't leave any sharp edges that will scuff the cylinder wall.

-Tom

flatlander · May 3, 2012

OK, thanks for the advice folks.

flatlander

It's not broken!

jamesmartin

Well-Known Member

flatlander

It's not broken!

jamesmartin

Well-Known Member

pos

Well-Known Member

flatlander

It's not broken!

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