View Full Version : tips on pulling cam covers?
CorvZ061
02-13-2009, 12:37 AM
Anybody have any tips on pulling cam covers on the LT5? I think it wiped a lobe on one of the cams...
Jeffvette
02-13-2009, 12:40 AM
Which bank?
CorvZ061
02-13-2009, 12:44 AM
Which bank?
not sure, will probably pull both to have a look around.
Jeffvette
02-13-2009, 01:06 AM
http://www.pnwzr1.net/LT5_tear_down.htm
http://www.pnwzr1.net/LT5_tear_down2.htm
CorvZ061
02-13-2009, 01:19 AM
http://www.pnwzr1.net/LT5_tear_down.htm
http://www.pnwzr1.net/LT5_tear_down2.htm
Thank you very much!
That will be very helpful with a few other things i'm going to do at the same time.
LGAFF
02-13-2009, 06:31 AM
Are they stock cams? This is getting scary.
LGAFF
02-13-2009, 06:56 AM
http://www.enginebuildermag.com/Article/3100/performance_oils_and_additives_got_zinc.aspx
tomtom72
02-13-2009, 09:02 AM
Are they stock cams? This is getting scary.
Yea, this is getting a bit out there. I guess I'd better break down and change my SOP on oil changes to the AMSOIL 10w-40 stuff Marc tabbed as suitable for our motors. It's just such a drag to have to get this stuff via mail order. The UPS guys are gonna love me. They are gonna love the case of oil at three month intervals!
I'm using M1 10w-30 full syn with the Kirban ZDDP additive, three bottles ZDDP per change. The ZDDP is cheap to ship in six pacs & the oil I buy at COSTCO for $30 / case + sales tax. Oh well, it was nice while it lasted.:(
LGAFF
02-13-2009, 11:13 AM
I heard STP oil additive has Zinc Phospate...yes? No? Is there enough to do the job?
I heard STP oil additive has Zinc Phospate...yes? No? Is there enough to do the job?
Lee,STP does have it from what i read,just not enough for my liking but at $2 a bottle i would add 2-4 bottles and still won't equal to one 4oz bottle of ZDDP Additive.
Pete
tomtom72
02-13-2009, 11:43 AM
Don't know about the STP. I do know that @ the Kirban site they say that their additive, ZDDP, has 0.15% of the zinc phosphate stuff. They say that matches the specs for the oil school motor oils from the days of flat tappet cam'ed cars.
All the turbo buick guys that I've met and quite a few guys that have old muscle cars swear by the stuff. Ron Kreigh turned us on to the stuff as he's a fan of the buicks. I'm not a chemist so I don't know what to think.
I used to use stuff called "assembly lube". It looked like grey tooth paste & the active ingredients were molyb-di-sulfide and this zinc phosphate stuff. Smeared plenty of it on the lobes, journals & bearings & lifter bottoms....followed the 20 min./2krpm rules....never had an issue with either cam install that I did on my own stuff...but that was back in the 70's & late 80's on sbc's.:dontknow:
This kind of sucks!:redface:
CorvZ061
02-14-2009, 01:23 AM
Are they stock cams? This is getting scary.
Yes, sir, They are stock cams. :(
ZR1Vette
02-14-2009, 08:08 AM
Based on a lot of reviews and comments from knowledgeable folks owning ZR-1s and Lingenfelter C5 & C6s, I use Amsoil AMO High Zinc/Phos Formula in both my Vettes. The ZR-1 for obvious reasons and the C6 has a 366 Lingenfelter set up engine which includes performance cam/valves/high rate valve springs/heads and so on...is now a 7000 rpm engine with 470 WHP and thus the need for the zinc formulation. I am no chemist, but appears that the higher zinc/phosphorus is a must for these type of engines.
Yes, sir, They are stock cams. :(
Keep us posted on your findings.
Pete
CorvZ061
02-14-2009, 08:55 PM
Keep us posted on your findings.
Pete
Got the cam covers off today, tomorrow i'll actually be digging into it, looking at the cams.
ZR1Vette
02-15-2009, 06:37 AM
Pics please
LGAFF
02-15-2009, 12:04 PM
From an MG site...appears the ZDDP issue has been around for awhile...
http://www.ttalk.info/Zddp.htm
CorvZ061
02-15-2009, 06:50 PM
I didn't get a chance to work on it today, maybe tomorrow after a job interview.
CorvZ061
02-17-2009, 03:46 PM
Any updates??
Pete
personal problems are conflicting with working on the Z. I'm not even in Ga anymore, i'm en route to Texas. I don't know when I'll be back, but I'll have updates when I do. Sorry about that.
WB9MCW
02-17-2009, 07:47 PM
I went to Amsoil in my boat after years of using Valv 50 Racing oil and saw a big diff in lower temps and quicker recovery on the psi gauge after a hard run with the blower motor. My buddy saw a diff the same way with the Mobil synth he was running also.
No doubt about it the Amsoil is the good stuff but at 2 to 3 times the price it should be!
What price glory for the high rev's monster HP motors.
AMSOIL Synthetic Lubricants Proven Best. Verified by Patent Office.
"Our Company makes the Best Lubricants in the world, period, and challenges anyone or any company to prove us wrong! That won't happen because our competitors know it's true."
A. J. Amatuzio, President and CEO.
Albert J. Amatuzio, President and CEO of AMSOIL Inc., recently announced that the phrase "First in Synthetics" is now part of the AMSOIL registered trademark. No other oil company in the world can claim to be first.
Mr. Amatuzio told an interesting story as to how this came about. AMSOIL applied to have this statement registered and was told that they must prove to the trademark officials, by documentation, that AMSOIL Synthetic Oil was the first, historically. However, they also said that by claiming to be first, we were insinuating we were the best (or #1/first) from a quality or performance standpoint.
So AMSOIL had to convince them that they had the best product to also claim to be first. AMSOIL proceeded to present comparison documentation and test results backing up the claim that AMSOIL was also the best. Yes! The trademark officials accepted the documentation to allow AMSOIL to use "first" in their trademark.
But the process was not through. The procedure now required the government to notify all other oil manufacturers that would be impacted by the decision, so they would have input before this decision would be official. They were notified in writing and given 90 days to object, comment or respond. The 90 days elapsed without a peep!
AMSOIL not only convinced the trademark office that AMSOIL Synthetic Oil was the first historically, but also convinced them that AMSOIL is the first in quality, and no other competitor objected!
In fact, Mr. A.J. Amatuzio, founder, President and CEO of AMSOIL states that he often hears other companies ad slogans stating that their products are the best. They are not. Mobil 1 has run the tag line for their advertising "nothing outperforms Mobil 1". A.J. Amatuzio states that he knows a company that does make products that outperform Mobil 1. "And you know which company that is. Mobil makes a very good oil, but I am here to tell you that that it does not outperform AMSOIL Synthetic Motor Oils. They can come out with advertising buzz words to market their oils, but in the final analysis, buzz words don't add one thing to their products performance. The only reason that AMSOIL has continued to grow and prosper competing with large corporations like Mobil is that AMSOIL products have consistently performed better
I THINK THIS SPRING THE MOBIL IS COMING OUT AND THE AMSOIL IS GOING IN THE Z
jonszr1
02-17-2009, 09:50 PM
has anybody heard anything about the new castrol syn. that is out .its pricy for sure 35.00 for a 5 qt . they say its 4-5 times better than anything . i use amsoil myself .but was just curious .
So,will Amsoil make more power? :)
Pete
WB9MCW
02-17-2009, 10:34 PM
So,will Amsoil make more power? :)
Pete
I think so Pete my boat picked up 50 more rpm at FT. from 5100 to 5150.
In the fall cool temps I could get 5150 but not in the hot summer the Amsoil got 5150 in the summer and 5175 in the fall.
More RPM's = More Speed = More Power :thumbsup: Right???
rkreigh
02-20-2009, 06:15 AM
it would be cool to do a "back to back" dyno test. run the mobil or other oils, drain it, run again with amsoil on the same dyno.
this would be great to do at our "dyno days"
a 2 hour plus would be enough of a "drain" to get the old stuff out (lots stays in the oil cooler anyway ya know)
I'd be up for trying this. there is no doubt the amsoil stuff is great, but being that I'm a cheap b@st@rd I still get the mobil extended which does have more zinc at wally word for 25 a jug
3 quarts of the "good stuff" costs more than that!
but sheesh, my engine cost 30k, so it's probably a very smart move!:worship:
I have always used regular oil now i will be using Amsoil with ZDDP Additive.
I will Dyno i hope it's true and not a myth.:)
Pete
WB9MCW
02-20-2009, 06:10 PM
CorvZ061 wanted me to tell everyone he is back down in Texas with his girlfriend again and will not be back until July to work on the Z.
He will be in Georgia Mar 11-20 and ~~~ "i'll probably just put the cam covers back on and leave it buttoned back up." until he returns for good in July.
His gal got lonely and really missed him so he is going to stay in Texas with her until the school year is over and then they will both move up to Georgia together.
Ain't luv a grand thing???
CorvZ061
06-11-2010, 05:19 PM
Update on the car, I told Bryan the story on the car, don't know if he has posted or not? But the car is gone, the LT5 let loose turning around 7k, was out playing around with a built fox body Mustang, got to the top of 3rd, and went to shift and heard a lourd bang and saw a shower of sparks pouring out from behind the car, the cams were ok when I looked before that. after selling the car, the new owner got back to me and told me that it appears the wrist pin in one of the cylinders failed and sent the rod through the block. It was ugly. I asked him to take pictures and send me so I could post up, but he never got back to me with them. I will have another when finances allow. But for now I have a C5Z for daily purposes, it's about to be sold though, lost job and can't find another one. It's hard for younger people these days, even if you know the right people.
Eric870
06-11-2010, 05:33 PM
Update on the car, I told Bryan the story on the car, don't know if he has posted or not? But the car is gone, the LT5 let loose turning around 7k, was out playing around with a built fox body Mustang, got to the top of 3rd, and went to shift and heard a lourd bang and saw a shower of sparks pouring out from behind the car, the cams were ok when I looked before that. after selling the car, the new owner got back to me and told me that it appears the wrist pin in one of the cylinders failed and sent the rod through the block. It was ugly. I asked him to take pictures and send me so I could post up, but he never got back to me with them. I will have another when finances allow. But for now I have a C5Z for daily purposes, it's about to be sold though, lost job and can't find another one. It's hard for younger people these days, even if you know the right people.
How many miles on the Z when it popped?
CorvZ061
06-11-2010, 05:46 PM
How many miles on the Z when it popped?
If I remember correctly it had 190k on it
pantera1683
06-12-2010, 12:18 PM
If I remember correctly it had 190k on it
That's a heck of alot of miles. What oil were you using and how many miles between oil changes?
CorvZ061
06-12-2010, 12:52 PM
That's a heck of alot of miles. What oil were you using and how many miles between oil changes?
It is a lot of miles. The PO said he used Mobil 1 10w-30 since new, and he also said he changed it every 3k. When I had it I used Mobil 1 10-30 also, but I went 5-7k miles
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