Pulled the manifolds... have Q's - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-14-2004, 12:59 AM   #11
Senior Member
True Car Nut
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default

If your main goal is to cut underhood temps, go with the header wrap. I'm got a ceramic coated cross-over and that thing still gets hot. I touched it after the car was runnung for a while. that hurt. But i've heard with header wrap that you can actually put you whole hand on there and not get burnt.
But, if i'm not mistaken, header wrap locks moisture in and deteriorates(can't spell) the manifolds over time.
95naSTA is offline   Reply With Quote
Old 10-14-2004, 01:50 AM   #12
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

that'* why the sealer is a good idea

And the Series 1 manifolds are Stainless Steel, not cast iron like yours.
willwren is offline   Reply With Quote
Old 10-14-2004, 03:22 AM   #13
Senior Member
True Car Nut
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default

Quote:
Originally Posted by willwren
that'* why the sealer is a good idea

And the Series 1 manifolds are Stainless Steel, not cast iron like yours.
Ohh wasn't too sure if the moisture was blocked in to begin with or got trapped over time.

I figured the manifolds were some kind of steel since they are tubular.
95naSTA is offline   Reply With Quote
Old 10-14-2004, 10:20 AM   #14
Senior Member
Posts like a Turbo
 
Join Date: Sep 2004
Location: Canton, Ga
Posts: 253
Thanks: 0
Thanked 0 Times in 0 Posts
jlathem is on a distinguished road
Default

I removed mine and cleaned ip the ports on them. I didn't have any gaskets at all so I can confirm the 1992 didn't have them. I used the top grade Felpro gasket when I reassembled.
As for porting, I didn't have much at all to port. I removed a few welding bumps
and that was about it. I was really suprised at how good they looked inside.
If my SSEI hadn't have had an exaust leak I would have never done it.
The back one was a @$%[email protected]&[email protected]* ! to put on.

JLathem
jlathem is offline   Reply With Quote
Old 10-14-2004, 12:02 PM   #15
Senior Member
Posts like a Turbo
 
Join Date: Apr 2004
Location: Sheridan Wyoming
Posts: 210
Thanks: 0
Thanked 0 Times in 0 Posts
57chevythunder is on a distinguished road
Default

Jlathem, from my experience, what you have found is exactly the normal situation: That is, GM engine plants in general do not use any gaskets on the exhaust manifolds. (at least on their V-type engines) And I have also found that almost all (if not all) aftermarket gasket sets include gaskets for the exhaust manifolds.

Also, on the ceramic coatings, I have used on steet tube headers, I really didn't notice hardly any decrease in the external temperatures. If it were me, and I decided to do the ceramic coating, I would still darn sure re-use the heat shields. If you don't, you will be asking for problems related to radiated heat from the manifolds. -By the way, you could have your heat shields coated too- -they would look better,,,

And the guys are exactly right about the heat tape. (header wrap) It will greatly reduce the extermal surface temps. Just be prepared for accelerated deterioration of the headers/manifolds themselves over time, due to much higher internal operating temperatures of the manifolds. And, depending how tough the parts are, you may never experience the deterioration.

Good Luck !!
57chevythunder is offline   Reply With Quote
Old 10-14-2004, 10:36 PM   #16
Senior Member
True Car Nut
Thread Starter
 
Join Date: Feb 2004
Location: Western MA
Posts: 2,708
Thanks: 0
Thanked 1 Time in 1 Post
randman1 is on a distinguished road
Default

Quote:
Originally Posted by 57chevythunder
If it were me, and I decided to do the ceramic coating, I would still darn sure re-use the heat shields. If you don't, you will be asking for problems related to radiated heat from the manifolds. -By the way, you could have your heat shields coated too- -they would look better,,,
Oooops! The rear manifold is now without it'* heat shields and most of the shield mounting points It seems that a die grinder had it'* way with it this afternoon.

Well... my next mod... custom heat shields!
randman1 is offline   Reply With Quote
Old 10-14-2004, 10:43 PM   #17
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

Nearly ALL header manufacturers warranties are voided if you use header wrap. It'* generally because it hurts them over time thru the heat trapped, and moisture as mentioned.
BonneMeMN is offline   Reply With Quote
Old 10-14-2004, 10:56 PM   #18
Senior Member
True Car Nut
 
Join Date: Apr 2004
Location: Three Oaks, Michigan
Posts: 4,879
Thanks: 0
Thanked 0 Times in 0 Posts
opensourceguy is on a distinguished road
Default

How bad is the header wrap? Because I'm thinking this is something I will do.. my car is 16 years old.. and I don't want my headers melting because I wraped them.


-justin
opensourceguy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Riv and SSEi have same manifolds? jgs11 Performance, Brainstorming & Tuning 2 08-17-2005 11:35 AM
I have some codes pulled on my car ssesc93 1992-1999 5 05-19-2005 02:06 PM
Awesome, got pulled over by a cop for Neons!!! Glasuan Audio (and aftermarket electronics) 16 11-19-2003 05:02 AM
Got pulled over (adult warning) TrueWildMan Lounge 8 11-15-2003 07:16 PM
Pulled from a Corvette Forum Jim W Lounge 21 07-14-2003 07:58 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:01 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.