Epoxy coating? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-23-2007, 07:19 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Feb 2007
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
screatta is on a distinguished road
Default Epoxy coating?

I am rebuilding a 95 M62, and the epoxy is comming off. Is there any fix for this. I mean what, if anything, can be used to replace it?

By the way thanks for all the help you guys have already given me,
screatta is offline   Reply With Quote
Old 10-23-2007, 07:26 PM   #2
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

New rotors or getting them recoated. I've never seen the coating coming off the Gen 3 M62. Got any pics?
J Wikoff is offline   Reply With Quote
Old 10-23-2007, 07:53 PM   #3
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

I second John. New rotors or get them recoated.

I'd like to see pics, too.
willwren is offline   Reply With Quote
Old 10-23-2007, 08:44 PM   #4
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Feb 2007
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
screatta is on a distinguished road
Default

any one know who recoats them?
I will post pics once I get the housing seperated.
screatta is offline   Reply With Quote
Old 10-23-2007, 08:56 PM   #5
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Feb 2007
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
screatta is on a distinguished road
Default

One more thing, does pumkping the grease in to remove the needle bearings also seperat the rotors from the housing or is that done prior?
screatta is offline   Reply With Quote
Old 10-23-2007, 10:08 PM   #6
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

The rotors pull right out with the middle plate.
J Wikoff is offline   Reply With Quote
Old 10-23-2007, 10:12 PM   #7
Senior Member
True Car Nut
 
Join Date: Dec 2002
Location: Sauk Centre, MN
Posts: 5,458
Thanks: 0
Thanked 0 Times in 0 Posts
OLBlueEyesBonne is on a distinguished road
Default

My rotors in my old 95 M62 were almost completely bare when I pulled the SC apart to port it and replace the SC gasket. Between the rotors being almost bare and the SC gasket blocking the outlet of the SC would probably explain a big part of why the car was probably .3-.5 seconds slower than it should have been. I know it definitely felt stronger from just porting and putting a properly placed SC gasket in.

As far as a place that re-epoxy'* them, from what I have heard on www.3800pro.com and www.clubgp.com the cost of recoating them (teflon coating -might as well if they are going to be done properly) would be about $400. Worth it? It'* up to the person holding the cash.
OLBlueEyesBonne is offline   Reply With Quote
Old 10-24-2007, 12:21 AM   #8
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

There are cheaper recoating options with candadian supercharger. But that includes shipping across the border.

Oldblue'* performance estimates are right on the money for a loss of 1-1.5 psi due to rotor coating losses.

Figure 100 bucks MINIMUM to recoat, not including shipping. I suggest finding another supercharger to be a donor for a set of rotors. But I'd still like to see a pic of the coating loss. It'* not common, except in cases of abuse.
willwren is offline   Reply With Quote
Old 10-24-2007, 08:03 AM   #9
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Another possibility could be to drop a pulley size (~$50) to gain back the loss. Keep in mind spinning the charger faster would result in slightly higher temps coming out. It'* probably a wash though if everything else is in good shape.
BillBoost37 is offline   Reply With Quote
Old 10-26-2007, 01:13 PM   #10
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Feb 2007
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
screatta is on a distinguished road
Default

Here are the pics of my rotors. I have moved to the smaller pulley from a 92'. I do not see any isues using it seeing how I am still in the tuning stages of this engine swap.

Name:  DSCN1067.jpg
Views: 1
Size:  73.0 KB

Name:  DSCN1068.jpg
Views: 2
Size:  49.5 KB
screatta is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Split from "epoxy coating on supercharger" bigbadbonneville Forced Induction 53 12-19-2006 04:00 PM
epoxy coating on supercharger bigbadbonneville Forced Induction 3 11-29-2006 03:37 PM
clear coating the motor jachin Detailing & Appearance 6 01-07-2004 12:57 AM
Ceramic coating? J Wikoff Lounge 1 10-06-2003 11:52 PM
Ceramic coating your pistons DrJay Performance, Brainstorming & Tuning 9 06-02-2003 11:53 AM


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 09:49 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.