urdrwho Posted May 30, 2013 Share Posted May 30, 2013 Went to the bones yard today to get some injectors to test on my P304 situation. Took the caps off but couldn't get the darn things to come out. Ended up messing them up trying to pull them out. What was I missing? How do you get the things out? Link to comment Share on other sites More sharing options...
Zues Marine Posted May 30, 2013 Share Posted May 30, 2013 twist them 90° before you pull Link to comment Share on other sites More sharing options...
johnegg Posted May 31, 2013 Share Posted May 31, 2013 spray them with pBlaster. it works wonders. Link to comment Share on other sites More sharing options...
urdrwho Posted May 31, 2013 Author Share Posted May 31, 2013 I guessed at that and tried it but they didn't budge. I sprayed some penetrate and still nothing. Sitting in the hot sun of the bones yard maybe they were just stuck. twist them 90° before you pull Link to comment Share on other sites More sharing options...
monkeyposeur Posted May 31, 2013 Share Posted May 31, 2013 Spray them with pb blaster, turn them a bit, get a flat head screwdriver underneath the harness connector and pry off. I struggled with removing them until I read this DIY on WitchHunter performance: http://witchhunter.com/subieremoval1.php Works like a charm. Link to comment Share on other sites More sharing options...
spooln30 Posted May 31, 2013 Share Posted May 31, 2013 So you have only one cylinder misfire correct? The #4 cylinder, so why don't you just swap the #2 injector into the #4 spot and clear the codes and drive till the CEL comes back on. If it changes to a #2 cylinder misfire its the injector. Easy-Peezy-Japanesey. Link to comment Share on other sites More sharing options...
urdrwho Posted May 31, 2013 Author Share Posted May 31, 2013 I want to swap them but I don't want to destroy them when trying to remove. the bones yard attempt was kind of a learning attempt, if I got one out so be it but mainly it was a trial exercise in removing them. It didn't work out well but with a heat index of 101 degrees I didn't give the penetrant a long time to do its work. Because it is so intermittent the darn misfire code is driving me crazy. So you have only one cylinder misfire correct? The #4 cylinder, so why don't you just swap the #2 injector into the #4 spot and clear the codes and drive till the CEL comes back on. If it changes to a #2 cylinder misfire its the injector. Easy-Peezy-Japanesey. Link to comment Share on other sites More sharing options...
B-BGTLimited Posted May 31, 2013 Share Posted May 31, 2013 How many miles on the engine? I had a intermittent missfire on #4 and then blew up the piston, I had 158k on the motor. I think my issue came from bad exhaust valves causing a lean condition on that cylinder. When the heads were rebuilt one valve had to be ground down a lot to clean it up, so they just replaced all 8 exhaust valves in the motor. I had swapped injectors coils and plugs and still had the same missfire. My suggestion is do a compression/leak down test on the engine to see if you notice anything funny. Link to comment Share on other sites More sharing options...
urdrwho Posted May 31, 2013 Author Share Posted May 31, 2013 The engine is a transplant and the bones yard that sold the transplant engine said it was a 50,000 mile engine. How many miles on the engine? I had a intermittent missfire on #4 and then blew up the piston, I had 158k on the motor. I think my issue came from bad exhaust valves causing a lean condition on that cylinder. When the heads were rebuilt one valve had to be ground down a lot to clean it up, so they just replaced all 8 exhaust valves in the motor. I had swapped injectors coils and plugs and still had the same missfire. My suggestion is do a compression/leak down test on the engine to see if you notice anything funny. Link to comment Share on other sites More sharing options...
spooln30 Posted June 3, 2013 Share Posted June 3, 2013 Didn't you know junk yards lie? LOL. Just swap the injectors around and drive it. You won't break them. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.