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16 valve TPS Question
10-23-2018, 08:52 AM (This post was last modified: 10-23-2018 08:53 AM by Oscar.)
Post: #31
RE: 16 valve TPS Question
When I said wet, I meant that I checked the compression on number 4 a second time with a bit of oil added through the spark plug hole to see how much it changed the reading. All the spark plugs are dry.
I’m struggling with the leak down test. With number 4 at TDC and distributor rotor pointed at 4, the hiss is coming back up through the number 4 spark plug well. I’m going to take the valve cover off and try it again. Maybe a crack at the spark plug threads???

1986 Samurai with 1993 1.6 16V
1.6 completely rebuilt, Trail Tough harness modification and ECM bench test, injectors tested and cleaned, Thorley header, new cat, 2”exhaust
Trail Tough Epic Trek SPOA on 33” BFG KO2’s
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10-23-2018, 11:23 AM
Post: #32
RE: 16 valve TPS Question
tiger by the tail this engine.
hope you can get #4 solved !

http://www.fixkick.com
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10-27-2018, 07:54 AM
Post: #33
RE: 16 valve TPS Question
Pulled the valve cover and re-did the leak down. When testing number 4, found air coming back out the 1 and 3 spark plug holes. Cracked head??? Pulling the head now to get it checked. I’ll let you know what I find. Thanks again for all your help!!!

1986 Samurai with 1993 1.6 16V
1.6 completely rebuilt, Trail Tough harness modification and ECM bench test, injectors tested and cleaned, Thorley header, new cat, 2”exhaust
Trail Tough Epic Trek SPOA on 33” BFG KO2’s
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10-27-2018, 08:28 AM
Post: #34
RE: 16 valve TPS Question
pull head
take to any machine shop or shop that does heads.
get it pressure tested and metal checked (spray chems tested)
tell your story.

http://www.fixkick.com
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