Strange sound from rebuilt engine...
02-08-2013, 06:31 PM
#91
Burning Brakes
Thread Starter
Peter,
You def do not have the cams backwards because that would be apparent when you go to add the PS gear back on right side 4-6 bank. I would not run this until you have checked it a bit further. It would be really depressing to damage it when your so close to getting it right.
You def do not have the cams backwards because that would be apparent when you go to add the PS gear back on right side 4-6 bank. I would not run this until you have checked it a bit further. It would be really depressing to damage it when your so close to getting it right.
02-08-2013, 06:55 PM
#92
You havn't even had it past 2,000 yet?
Your putting yourself through a lot of undue stress, I wouldn't expect it to run any different then it is.
Drive it hard, come back and post a smile.
Your putting yourself through a lot of undue stress, I wouldn't expect it to run any different then it is.
Drive it hard, come back and post a smile.
02-08-2013, 07:05 PM
#93
Race Director
02-08-2013, 07:39 PM
#94
Three Wheelin'
02-08-2013, 07:44 PM
#95
Just trying to help as I have experienced this on many, if not all 3.6 builds. Watching The video and knowing he only went as deep as the heads, I again say drive it!
The lifters are not pumping up on idle oil pressure.
The lifters are not pumping up on idle oil pressure.
02-08-2013, 08:20 PM
#96
Rennlist Member
Cams reground, rockers refurb'd, valves reground also?
I tried to catch up with everything in the thread so apologies if I missed something but...
There are oversized lifters available for rebuilds.
Not sure what you have installed or what was taken off of the cams, valves...
I tried to catch up with everything in the thread so apologies if I missed something but...
There are oversized lifters available for rebuilds.
Not sure what you have installed or what was taken off of the cams, valves...
02-08-2013, 08:25 PM
#97
Burning Brakes
Thread Starter
This is an encouraging note and I certainly believe and appreciate what you are saying could be the case. Perhaps you are right. However, as much as I want to drive it and enjoy it, I am not in a hurry.
02-08-2013, 08:46 PM
#99
Burning Brakes
Thread Starter
Cams reground, rockers refurb'd, valves reground also?
I tried to catch up with everything in the thread so apologies if I missed something but...
There are oversized lifters available for rebuilds.
Not sure what you have installed or what was taken off of the cams, valves...
I tried to catch up with everything in the thread so apologies if I missed something but...
There are oversized lifters available for rebuilds.
Not sure what you have installed or what was taken off of the cams, valves...
2. Rockers Refurbed. Yes.
3. Intake valves reground. Yes.
4. Exhaust valves reground. No. New installed but I think they are ground anyway.
5. New rod bearings and bolts also.
Steve W. advised me as to which lifters to get. They were the 'standard' ones: 993-105-141-05.
I spoke to Dima Elgin about the regrind process when I had the cams done. I was curious as to what it would do to the overall geometry of the set up. His answer was that as long as the rockers are redone everything will align properly. It would seem to me that if you remove material on one end that the other end would be that much farther away from the valve. Anyone?
02-08-2013, 10:53 PM
#101
Rennlist Member
Calvin might be right, now that i think back to when i replaced all my lifters 2 years ago, i idled the car a couple of times for 20 mins or so, and the noise didnt stop. At that point i thought what do i have to lose so i took it out for about 15 mins and drove it HARD, magically noise stoped as the lifter must of finally filled with oil.
02-09-2013, 12:17 AM
#103
RL Technical Advisor
1. Cams regound. Yes
2. Rockers Refurbed. Yes.
3. Intake valves reground. Yes.
4. Exhaust valves reground. No. New installed but I think they are ground anyway.
5. New rod bearings and bolts also.
Steve W. advised me as to which lifters to get. They were the 'standard' ones: 993-105-141-05.
2. Rockers Refurbed. Yes.
3. Intake valves reground. Yes.
4. Exhaust valves reground. No. New installed but I think they are ground anyway.
5. New rod bearings and bolts also.
Steve W. advised me as to which lifters to get. They were the 'standard' ones: 993-105-141-05.
New valves require grinding as well as length corrections and both were completed.
I spoke to Dima Elgin about the regrind process when I had the cams done. I was curious as to what it would do to the overall geometry of the set up. His answer was that as long as the rockers are redone everything will align properly. It would seem to me that if you remove material on one end that the other end would be that much farther away from the valve. Anyone?
02-09-2013, 12:32 PM
#104
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Did you have a chance to located the sound? (I am travelling right now so my postings will be erratic - was hopefully that between checking it got solved... !)
Cheers,
Mike
Cheers,
Mike
02-09-2013, 03:24 PM
#105
I just drove my car,, and as a datapoint --
Up until minute three the pressure gauge was pegged at 5. After that it started to drop a bit, and until minute seven was at ~3.5.
First time it dropped below 3 was at the ten minute mark.
All observations were at idle (of course), though I drove the car right after starting it.
OAT was ~40F. 15W-50 oil.
Hope you get it resolved soon, good luck.
Last edited by mongrelcat; 02-23-2013 at 04:37 AM.