Hey all,
I recently (lol ok it was like 2 months ago) did a head gasket rebuild on a 95 FZJ. It mostly went smoothly, but now the engine is running very rough, to the point I didnt even try to drive it. was hoping you all could offer advice on the order with which you'd go through stuff. Here are the symptoms:
1) starts pretty quick (yay)
2) runs rough. RPM all over the place (but centered around a normal idle). Engine shaking in its boots. Loud.
3) revs, but doesnt help the rough running
4) leaving the computer control over the timing, it is also all over the place. Runs the best when retarded, but like around 14* (!)
5) RPM will eventually drop and it will die (unless revved)
6) no codes (waaaat)
Checks I've already done:
1) I'm 99% sure I set the timing gear right when I put it all back together.
2) I pulled the dizzy and checked the worm gear orientation and re-installed
Order of operations going forward:
1) check that the spark plug wires arent touching/crossing each other. I was pretty tired by the time I re-installed those. I've read charge can jump between plug wires if they're too close and lead to timing issues (also vvv easy to do)
2) check for vacuum leaks with the ole carb-cleaner method (easy) --> maybe double check the egr valve?
3) double check all vacuum lines (easy)
4) check compression? (the problem is I cant get the engine to warm up, so presumably readings will come back low)
5) pull valve cover and double check I set up the timing right. but again, i triple checked this before.
'preciate the help!
I recently (lol ok it was like 2 months ago) did a head gasket rebuild on a 95 FZJ. It mostly went smoothly, but now the engine is running very rough, to the point I didnt even try to drive it. was hoping you all could offer advice on the order with which you'd go through stuff. Here are the symptoms:
1) starts pretty quick (yay)
2) runs rough. RPM all over the place (but centered around a normal idle). Engine shaking in its boots. Loud.
3) revs, but doesnt help the rough running
4) leaving the computer control over the timing, it is also all over the place. Runs the best when retarded, but like around 14* (!)
5) RPM will eventually drop and it will die (unless revved)
6) no codes (waaaat)
Checks I've already done:
1) I'm 99% sure I set the timing gear right when I put it all back together.
2) I pulled the dizzy and checked the worm gear orientation and re-installed
Order of operations going forward:
1) check that the spark plug wires arent touching/crossing each other. I was pretty tired by the time I re-installed those. I've read charge can jump between plug wires if they're too close and lead to timing issues (also vvv easy to do)
2) check for vacuum leaks with the ole carb-cleaner method (easy) --> maybe double check the egr valve?
3) double check all vacuum lines (easy)
4) check compression? (the problem is I cant get the engine to warm up, so presumably readings will come back low)
5) pull valve cover and double check I set up the timing right. but again, i triple checked this before.
'preciate the help!