I love learning all these tiny new tid-bits of fact about these cars and engines. Everybody on this site is just so good about sharing the knowledge that they have acquired to confirm or correct what others post. Just wanted to throw that out there! Thank you
i LOVE sharing the knowledge that i have acquired..
a good portion of what i know, was due to reading this forum, or from hands on experience.
i dont mind sharing what i know, when others are open to listen, or contribute their own ideas as well..
I agree; information is the key; and being here makes me feel like a high school janitor.
SO much great info, and a chance to share your own! Honestly if not for this site continuing with this rebuild would have be difficult.
And in other news, the machinist looks to have boogered up my re-bore. I used a digital dial bore gauge calibrated to 80.01mm to check bore taper and out-of-round. Here are my readings. Note all measurements are plus the above measurement baseline, and (H)horizontal is correspondent to viewing the block deck, with the front of the engine as 'bottom':
H V
C1
T 0.026mm 0.028mm
M 0.014mm 0.022mm
B 0.030mm 0.026mm
C2
T 0.034mm 0.032mm
M 0.016mm 0.032mm
B 0.032mm 0.030mm
C3
T 0.032mm 0.034mm
M 0.020mm 0.038mm
B 0.036mm 0.036mm
C4
T 0.028mm 0.026mm
M 0.020mm 0.024mm
B 0.036mm 0.032mm
After running some math on circumference of the cylinders (in inches on that), I determined that these measurements would increase any new ring gap (0.007"-0.015") by 0.001727"-0.004676", which I'll round/simplify to 0.002"-0.005"
So as it seems that would be the reason behind my recently-measured excessive ring end gap, which measures anywhere from 0.024" to 0.031".
Now I'll have to get the block bore out ANOTHER 0.5mm, to 80.51mm, but not by the same machinist. Really pissed right now. Why the hell can't anything NOT cost me more money? :evil:
NOTE: I'll admit I took these measurements with the main caps not torqued, but the top and bottom measurements I think speak for themselves.
Lastly, at least the piston skirts measure in correctly at 79.98mm exactly. Too bad it looks like I'll need another set.