Edited on 2013-04-23 18:36:07

Edited on 2013-04-23 17:00:44

Hey all, I am a new e type jag owner and in need of some help. first off when i received the car the ceramic coated manifolds looked perfect. aside from the fuse for the radiator fan being blown the car drove perfectly. only drove it around for a good 5 mins around the block. when i got back i noticed the silver spots all over the manifold as you can see in the picture. is this something that i did wrong while driving or is supposed to happen? i have fixed the fuse problem but still worried about over heating being the main problem here. how hot are the manifolds supposed to get? my laser temp said 650-700F. thanks very much for your help.

Submitted by NE23-54945 on Tue, 05/14/2013 - 07:23

T.J. , You have some wonderful roads near you.
1. Take the car up to 100 mph and drive it that way for about 3 to 4 hours........
2. Once you pull it back in the garage and you wipe the smile off your face, open the hood.
3. ALL the paint should be burnt off...
4. Next close hood and go back to step one.
5. Never open the hood again, until you need an oil change.
6. At oil change they will probably be rusty and ugly.
7. Who cares close hood and go back to step one.
8. Im having fun with you but you get the idea, the best enamelled manifolds that have your reflection in the paint are never used, shame .
AS an old friend Denis Jenkins once said, instead of worrying about the small things , just shut the bonnet and enjoy the ride
GTJOEY1314

Submitted by b8_agnew@hotmail.com on Wed, 04/24/2013 - 12:56

It could be very well from just the way the manifold was prepped. If they were in bad shape prior to coating the heat will bring that right out. They may have media blasted them but yet there were still rough patched / pitting where air could get caught under the coating. As you know these puppies get HOT and will discolor over time no matter what is done to them. Plus it is hard to tell what was used on yours. DoesnÔÇÖt really look like paint, that would flake right off with that type of heat. If it really bothers you, pull them off, have them sand blasted and sanded down smooth, then have them Hi-Temp powder coated or Jet-Hot coating.

Submitted by wmcwings@att.net on Wed, 04/24/2013 - 12:41

They don't look they have the original porcelain coating. Looks like they were painted and the paint burned off.

You can re-paint with VHT header paint or have them re-coated or use a coating like Jet Hot. I just checked on having mine done by Jet Hot and the cost is around $300.