Re: SJ410 -1985 'Cabrio', engine rebuild
Posted: Thu Mar 27, 2014 11:01 pm
Got back in my garage this evening with a clear head.
Cranked the heating up, stuck the kettle on, and had a good look at this engine.
Whipped all 4 pistons out. The rings and bores all look okay. Bores are a little shiney / polished for my liking, so thinking of new rings and a hone.
Shells are defo shot, can see the wear in them.
The crank, has some very light marks on it, but nothing too nasty. Can only feel a few of them if you really dig your finger nail into the marks.
I measured each journal on the crank with a vernier, vertically, and horizontally. And there was about 0.2mm difference in it. Is there a tolerance to go by with these engines?
I then wire wheeled the engine and head, and decided to go all classic-Mini on it, and give the engine a paint.
RS125 engine in the background, one of my other projects which has been pushed aside thanks to this SJ...
And ring gap, which is .013"
Ben
Cranked the heating up, stuck the kettle on, and had a good look at this engine.
Whipped all 4 pistons out. The rings and bores all look okay. Bores are a little shiney / polished for my liking, so thinking of new rings and a hone.
Shells are defo shot, can see the wear in them.
The crank, has some very light marks on it, but nothing too nasty. Can only feel a few of them if you really dig your finger nail into the marks.
I measured each journal on the crank with a vernier, vertically, and horizontally. And there was about 0.2mm difference in it. Is there a tolerance to go by with these engines?
I then wire wheeled the engine and head, and decided to go all classic-Mini on it, and give the engine a paint.
RS125 engine in the background, one of my other projects which has been pushed aside thanks to this SJ...
And ring gap, which is .013"
Ben