So I'm sure this is been posted before and people probably get tired of helping out the "newb", but I'd appreciate any and all help I can get.
Donor motor for my lly tahoe project.
Motor is an lb7 engine with unknown miles and I bought it as a "core" knowing it was smoking when pulled. However Injectors were changed at the same time and truck wasn't smoking when it left the shop. So 50/50 shot it was injectors or low compression.
Checked compression today using one injector in the hole
I was checking and no rocker bridges or glow plugs in/ on the engine. On my engine stand using a starter to crank it over. I had sprayed a little fogging Oil in the cyls prior to cranking and hand cranked it a few times then starter cranked it.
Driver side was all under 200 psi so I didn't even check the passenger side.
Here's #8 cyl. Not sure why it's so dull looking and that's my first question. What caused it to be so dull in the cyl walls? The entire driver side looks like this. Talking to the shop who I got the engine from just now they said it got drove with bad gaskets for a while then gaskets got put on it and it still smoked.
Donor motor for my lly tahoe project.
Motor is an lb7 engine with unknown miles and I bought it as a "core" knowing it was smoking when pulled. However Injectors were changed at the same time and truck wasn't smoking when it left the shop. So 50/50 shot it was injectors or low compression.
Checked compression today using one injector in the hole
I was checking and no rocker bridges or glow plugs in/ on the engine. On my engine stand using a starter to crank it over. I had sprayed a little fogging Oil in the cyls prior to cranking and hand cranked it a few times then starter cranked it.
Driver side was all under 200 psi so I didn't even check the passenger side.
Here's #8 cyl. Not sure why it's so dull looking and that's my first question. What caused it to be so dull in the cyl walls? The entire driver side looks like this. Talking to the shop who I got the engine from just now they said it got drove with bad gaskets for a while then gaskets got put on it and it still smoked.