Hello,

Well today I tried to time my trooper by ear, I think I got it pretty good. I disconnected the terminal under the center consul and it sounded so much better already, then I just went both ways till it sputtered and got it about in the middle and just moved it slowly till it sounded good. Then I disconnected the battery for a minute or 2 to clear out the ecu and plugged it all back together and it sounded a lot better.

I also pulled all my plugs and tested my compression and gapped my Spark plugs ( I went with 44 on the gapping, I hoped thats good for these 3.4's). But as I was testing my compression I wasn't super happy. My numbers were all over the place.


_______
115 | | 120
85 | | 115
135 | | 100

Front of engine


And I noticed on my 85 cylinder that the spark plug was definitely blacker then the rest with a little more crude on there. Looks like it was running rich or not sparking for a while and has some carbon build up.. I'm hoping that if the low compression is from carbon build up that running it a while will clear it out.... Other wise am I trouble here? Is there anything else anyone can think of why I would have such a difference in compression? Could this be related to my valve lash?

Anyone else have any compression numbers from their v6's?? Thanks