THE GOOD THE BAD AND THE VERY UGLY
Hey guys I finally had some time to get into this engine and have some interesting findings.
Well it is truely a J&E flat top piston in there and it was looking like it was in pretty good condition. Had a little bit of carbon build up dead center but nothing to cause any concern. no big lips on the cylinder and no wear or scratches(more on this later) Does have some extra carbon around and on the valve area of the head.
The really ugly part is that the piston is stiing down in the cyl .028-.035" and I need to know if this variance is good. It has worried me and I am going to check the cyl for any warpage etc. I only have a good set of calipers for measuring but I know that my measurements are not off by .007" maybe a couple thou but not that much.
Matts original "senior moment" about the stock gaskets was correct. When the last guy put it back together he used a stk 85mm head gasket, I am not sure how much trouble this could have caused as the dome inside the head looks about the same size anyhow. (should this be machined to match the sleeve??)
Oh and do not worry about those little springs and pins from the decompressor they just wash around with the oil in the head
:D
The rings look and measure up fine and the cylinder was looking good except for a small section of scratches at the bottm of the cyl on the back (looks like a little bit of piston slap) I have not speced up the pin yet but there were no signs of wear or problems. This was a little suprising as the piston really looked good like it was only in use for a short time. Maybe I am just used to the auto stuff whre there wrecked.
My question is what do I do for a measurement to deck the cylinder. I have the cometic .025 head and .012 base. If I go to .010 off the cyl will it be too low with the shorter measurement on the cyl to piston. Help!!!!