Thanks for clearing that up GD, I feel bad because it seems like every time I post something about my car, someone doesn't like it.
I have complete confidence in GD's work, if I didn't I wouldn't have hired him.
Trust me, as a customer, I'm not that easy to get along with and he puts up with me anyway, that says something all by itself, I can be a pain in the butt, I always want things done yesterday and I tend to be a bit of a perfectionist, I have to see for myself that the smallest little detail isn't overlooked, I will literally be looking over his shoulder as he works on my car, and if I don’t like something he’s doing, I’m going to tell him, so trust me when I say, I can be a pain in the butt.
GD does do a good job, and he explains everything.
Sometimes we have to think outside the box, if we refuse to use the modern technology that’s available to us, then you’re stuck using the ways of our ancestors, and if that’s the case, then Subaru wouldn’t exist, and we’d all be driving Studebakers.
Now with that behind us, let’s move on to the next little challenge, the compression problem:
It looks like we got a rusty/sticky ring issue, with the engine, and doing some internet searching, it looks like the method of choice would be to do a 50/50 mix of acetone and ATF.
I found this reference which I thought was interesting:
"The April/May 2007 edition of Machinist's Workshop did a test of penetrating oils where they measured the force required to loosen rusty test devices. Buy the issue if you want to see how they did the test. The results reported were interesting. The lower the number of pounds the better. Mighty interesting results for simple acetone and tranny fluid!
Penetrating oil . Average load .. Price per fluid ounce
None ............ ..... 516 pounds .
WD-40 ............ .. 238 pounds .. $0.25
PB Blaster ......... 214 pounds .. $0.35
Liquid Wrench ... 127 pounds .. $0.21
Kano Kroil ........ 106 pounds .. $0.75
ATF-Acetone mix.. 53 pounds .. $0.10
The ATF-Acetone mix was a 50/50 mix (1 to 1 ratio)."
What I found in my searching was two different opinions of the sticky ring syndrome, there’s the guy that said, pull the pistons, re-ring or clean, and then there were the guys that said, give it a penetrating oil treatment.
I also read about the success rate, I found that interesting to, nowhere did I find any reference to – “I had to pull the pistons to cure the problem”
Most all the success stories I read, pointed to using some form of penetrating oil, most notably, a 50/50 mix of ATF and acetone to free up the rings.
The one trick that really seemed to do the job was forcing the mix past the piston and rings by way of forced air.
I’ll give that a shot and report back my findings.
Edited by Stubies Subie, 03 November 2011 - 10:51 PM.