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Made some good progress today. It's alive !!!!! I still have to much oil pressure 80psi Its got 15-40 in it now and going to change it out tomorrow 5-30 hopefully that drops it down some. took it for a 10 to 15 mile ride at hwy speed ran good. Now to put the bib and hood and winch back on. Also got to put the flywheel cover back on then pull the head on the old F and look at the bad piston. Then clean the garage back up.
It's Alive
The last pics were with the head off but the first ones back in January were with this Iphone Bore Scope not bad pics for under $30.00 bucks.And #5 cylinder tested at 146 psi compression?
Now I’m wondering about the validity of compression testing in general.
What borescope/endoscope you have? I need to get something that will work with iphone junk or self-contained.
How does the head look? Any burnt valves or anything?I pulled the head on the old F engine today. I was surprised to find that not only #2 piston had 2 holes #5 had a hole also. The real interesting thing is that both pistons the hole was in the same place about 7 o-clock and the same size.
#2 Notice the chunk stuck in the piston at the right edge.
View attachment 2969159
#5
View attachment 2969160
I have one of those $30 Amazon scopes. I use it for tons of stuff. Well worth it.Yeah I was wondering if there was a broken valve spring that might have caused the damage.
Your #5 cylinder situation got me to order an endoscope. According to the ASE certification test on Wet Compression Test Diagnosis, you shouldn’t have had any compression pressure in that cylinder.
View attachment 2969715
So an ASE certified repair shop with an ‘ok’ diagnosis for your cylinder #5 would have been incorrect. If you hadn’t scoped your #2 cylinder, your ASE technician might have had you going down another path. I might be in the same boat as all six of my cylinders’ compression are good but I have visible blowby. Hence, scoped ordered .
Yeah I was wondering if there was a broken valve spring that might have caused the damage.
Your #5 cylinder situation got me to order an endoscope. According to the ASE certification test on Wet Compression Test Diagnosis, you shouldn’t have had any compression pressure in that cylinder.
View attachment 2969715
So an ASE certified repair shop with an ‘ok’ diagnosis for your cylinder #5 would have been incorrect. If you hadn’t scoped your #2 cylinder, your ASE technician might have had you going down another path. I might be in the same boat as all six of my cylinders’ compression are good but I have visible blowby. Hence, scoped ordered .