Spark Plug / Timing Light Question

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21 Sep 2008 16:04 - 21 Sep 2008 18:24 #238076 by HerrDeacon
Replied by HerrDeacon on topic Spark Plug / Timing Light Question
Forgot to mention, after I last tried running it I checked the plugs. #2 was soaked with fuel so it looks like it's getting fuel. The others were perfect.

Just to rule out that I fixed something with the #2 enrichener circuit but the plug was fouled from running it yesterday, I'm going to pick up a new plug tomorrow to test. I'll let that cylinder air out overnight.

EDIT: on further examination of the plug, it actually looks like oil, not gas. Seems oil maybe getting in from somewhere (i.e. rings, valves, etc). I'm going to see if I can pick up a compression tester tomorrow.
Last edit: 21 Sep 2008 18:24 by HerrDeacon.

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22 Sep 2008 13:19 - 22 Sep 2008 13:21 #238215 by HerrDeacon
Replied by HerrDeacon on topic Spark Plug / Timing Light Question
First of all I'd like to apologize for this post straying from the electrical question that started it. It seems the topic has moved outside the Electrical realm.

Checked compression and the results were:

Dry:
#1 - 160
#2 - 160
#3 - 165
#4 - 170

Wet:
#1 - 170
#2 - 170
#3 - 170
#4 - 170

These numbers seem ok? Small difference between dry and wet means the rings are fine? If so, I'm thinking that the valve seals are probably leaking. I have to reshim some over the winter anyway so I'm going to replace all the seals then.

Thanks for everyones help.
Last edit: 22 Sep 2008 13:21 by HerrDeacon.

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