Last night I filled up at a gas station I normally dont go to and after that I started getting detonation. I went home and checked the plugs and they all looked good no signes of detonation. This morning I emptied the tank and put a couple of gallons in to make it to the gas station. On the way there I got a mis on cylinder 7 so when I got home I put a new wire on and the miss went away. I then went out, and I still have detonation. I put the btm setting on 3 and I still get detonation. So then I moved the starting point from 3.5 to 2 and its still there. Can someone please help me?
detonation
sick 660r
41 - 60 of 74 Posts
Joined
·
4,711 Posts
Another update...
Well today I spent 8 hours taking the cat out and it made no difference. I have no power and Im still getting that ticking sound. Some times I will get power but its just about always after 3500 rpms and sometimes it dosent even go past 3500 rpms. I have no idea whats going on. I check the tps and it at .7 so thats no the problem. Im getting boost and fuel so thats not it. Could it be another head gasket, but im not even close to overheating and I still have oil pressure? How can I check for a head gasket if theres no smoke, no overheat, and still oil pressure?? This is really starting to piss me off.
Well today I spent 8 hours taking the cat out and it made no difference. I have no power and Im still getting that ticking sound. Some times I will get power but its just about always after 3500 rpms and sometimes it dosent even go past 3500 rpms. I have no idea whats going on. I check the tps and it at .7 so thats no the problem. Im getting boost and fuel so thats not it. Could it be another head gasket, but im not even close to overheating and I still have oil pressure? How can I check for a head gasket if theres no smoke, no overheat, and still oil pressure?? This is really starting to piss me off.
Joined
·
4,711 Posts
I sounds like its coming from cylinder 5 and 7 and thats where I have an exhaust leak. Some times theres ticking and sometimes there not. No I havent done a compression test yet. Ill probably do it tomorrow. I was thinking tranny related but I dont know how to check for signs.PSSTRT said:What area is the ticking soung coming from?
Have you done a compression check on the cylinders?
Does it feel like it could possibly be tranny related?
Just tryin to help narrow things down!nethumb:
Good Luck!!
Joined
·
430 Posts
Well hopefully the compression test will tell you what you need to know.sick 660r said:
try tightening your header bolts cause I know mine always come loose.
Also, at this point anything is possible.
My buddy (badblkrt) blew his head gasket and there was no smoke, hardly any coolant in the oil, but it ran like shit.
He's runnin a blower too. Just a possibility.
Joined
·
4,711 Posts
Ill check them tomorrow. God I hope its not another head gasket. I noticed when I was working on the exhaust there was some tranny oil on the frame. I think the rear seals got messed up when I put the torque convertor in, so Ill check the tranny fluid level too.PSSTRT said:
Joined
·
4,711 Posts
Well I poped another one. cylinder 3 and 5 plugs looked funny and I knew right there that it was the headgasket. Did a wet and dry only on the driver side because the passenger was all from 179-180 and they plugs looked brand new. Im actually kinda happy that its the headgasket because I know what the problem is this time unlike last time where it took me two months to discover it was the map sensor.
# dry wet
1 175 175
2 180
3 152 156
4 180
5 155 159
6 179
7 172 176
8 180
Last time it was also the driver side and cylinder #3 that poped. I wonder why, bad cooling design, in the middle of the motor what???
I think I know why this side poped this time. I had my dad pick up the headgaskets last time and they were both the same ones. We didnt know what side to put down. When we put them in on one side they were facing up and on the other side it was facing down (sorry kinda hard to understand). Are there supposed to be different ones for different sides? Im planning on only doing the driver side since theres no point it messing with the other side and im going to use the same gaskets. What do you guys think both or not?
# dry wet
1 175 175
2 180
3 152 156
4 180
5 155 159
6 179
7 172 176
8 180
Last time it was also the driver side and cylinder #3 that poped. I wonder why, bad cooling design, in the middle of the motor what???
I think I know why this side poped this time. I had my dad pick up the headgaskets last time and they were both the same ones. We didnt know what side to put down. When we put them in on one side they were facing up and on the other side it was facing down (sorry kinda hard to understand). Are there supposed to be different ones for different sides? Im planning on only doing the driver side since theres no point it messing with the other side and im going to use the same gaskets. What do you guys think both or not?
Joined
·
430 Posts
Glad to see you found what it was!! nethumb:
The only thing is: How long did you drive it like that?
Have you drained your oil yet?
The reason I'm asking is because if you drove it around for a good period of time with coolant in the oil, chances are your berings are wiped out! (showing copper)
I think the head gaskets are the same because when I did mine they were the same way, as far as one side up and one down.
It's up to you on doing 1 or both but everyone will have their own oppinion.
When I blew a head gasket, and drove a short distance, it wiped out the berings and I had to have the crank turned!! :rant:
Good Luck, and at this point, check everything.
nethumb: The only thing is: How long did you drive it like that?
Have you drained your oil yet?
The reason I'm asking is because if you drove it around for a good period of time with coolant in the oil, chances are your berings are wiped out! (showing copper)
I think the head gaskets are the same because when I did mine they were the same way, as far as one side up and one down.
It's up to you on doing 1 or both but everyone will have their own oppinion.
When I blew a head gasket, and drove a short distance, it wiped out the berings and I had to have the crank turned!! :rant:
Good Luck, and at this point, check everything.
Joined
·
2,640 Posts
There's no up or down with the Felpros, they're all the same, so one side is always gonna be "upside down", but it doesn't matter.sick 660r said:
What you need to do is ask yourself why did it pop? What's your a/f? How much timing are you running? What kind of gas? Plugs?
Cometics aren't the answer, because if something is wrong with the tune you could pop a piston next time instead of a gasket (trust me, that's exactly what I did). The Felpros will hold 15+psi without any problems if you have a good tune and you're not getting any detonation.
Joined
·
4,711 Posts
I dont want to go with the cometic because right now the felpros are my weak link. So insted of poping a piston I blew the gasket. I really dont know why I blew the head gasket. Its just strange that it blew on the same piston as last time. Im running really rich and I have the btm set on about 1.75 when the previous detionation (long time ago) went away at around 1.25. I have my start point at about 3.25 which I really dont understand the concept of but I know the closer to 1 the safer. I always run high test and my plugs are autolite 3922's. When the headgasket blew I was street racing and I was running the engine hard. Could hitting the rev limiter do it? because I remember hitting it that night (wich I RARELY do). I probably drove it for about a total of an hour before I realized it was the gasket. Ill check the oil tomorrow.
Joined
·
4,711 Posts
I did go through the period when I was having map senor problmes where I was going extremely lean, to the point where it was poping and backfiring. I also had the previous detionation. This is all on the same head gaskets at around 10 psi. Maybe it weakened them and when I finally too the restrictor out and bumped up the boost it was just too much for them. Im going to stick with the felpros and only do the driver side since the passenger side is holding up fine. Hopefully this time I have all the kinks worked out and they hold up.
Joined
·
4,711 Posts
Damn you got a good memory. Now I remember even when I the last compression test (when I thought I was burning oil, god im paranoid), cylinders 3 and 5 were low. I think you hit the nail on the head. Im ordering all new bolts this time. Thanks now I can sleepmopar318 said:
nethumb:41 - 60 of 74 Posts
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
