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I think I burnt up some valves:(

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BIGGSIE

15+ Year Contributor
233
0
Sep 17, 2003
Hartwick, New York
My gf and I went to the Custom Compact show in Harrisburg PA, It was about a 4 hour drive. On the way down the 1G was running good, trims were normal and coolant temp was good. On the way home things started to change. My trims went higher and higher untill they were all maxed out at 118.7%. At this time I pulled over to check things out. I was expecting to find my intake pipe loose or a vaccum hose off but no problems were found. Well we made it home OK but right before I shut her off for the night I noticed a misfire at idle. Yesterday I did some testing and found that I have a misfire on cyl. # 3. I've got good spark and my injectors and fuel pump are brand new. Today I'm going to do a compression test and see what that says. It seems to me that I may have burned up a valve or two from running her at 75mph for hours on end. Anyone have any suggestions as to what else I should replace if I have the head off ?

I was thinking :
- Timing belt
- Remove balance shaft
- Water pump
- Oil seals
 
OMG Phil, I did not mean to sound rude. I inspected the valves as best as I could without actually removing them. All you see in the pic is just carbon "flakes" I guess you could call them. The valves are covered with soot. They are all perfectly round and seem to be undamaged. Sorry if my reply came off wrong. ;)
 
Well to make a very long story short, I got my head back from the machine shop and installed it. Started it up and still had a misfire :thumbdown . Turns out my #3 injector had no ground. I traced the wiring to find the injector resistor pack bad. I replaced the resistor pack this morning (thanks Chris) and bingo :) runs smooth as butter now. :thumb:
 
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