| Author | Message | ||
| Steven R. Rochlin (Enjoythemusic)
Member Username: Enjoythemusic Post Number: 885 Registered: 4-2002 |
Verell, If you're game, perhaps we could both get our headers done inside and out this winter? We'll talk about it this weekend :-) Enjoy the Drive, Steven R. Rochlin | ||
| Paul Sloan (Sloan83qv)
Member Username: Sloan83qv Post Number: 673 Registered: 3-2001 |
Verell, Coating is inside and out and actually is Ceramic/aluminum. Price per headed is less than $125 (?). Airborne link below has a price list. Paul | ||
| Verell Boaen (Verell)
Intermediate Member Username: Verell Post Number: 1302 Registered: 5-2001 |
Ric, WOW That's impressive heat containment & a very graphic demonstration of the ceramic's low thermal conductivity! Roughly how much does it cost to do a pair of QV headers? Also, are they coated on the inside as well? I'd think that interior coating would significantly increase a header's lifetime. | ||
| Ric Rainbolt (Ricrain)
Member Username: Ricrain Post Number: 560 Registered: 2-2002 |
The ceramic I've had done works well. You can actually touch the headers just after turning off the car. It still hot and will make you flinch, but it won't instantly seer your flesh. I've used this on a 79 GTB, two 81 GTSi's and one QV. I really recommend it. | ||
| Paul Sloan (Sloan83qv)
Member Username: Sloan83qv Post Number: 672 Registered: 3-2001 |
If you wish to go with ceramic coating here is a direct to a great company that does it (see photo of mine below). Sending money to MR. Morgan is like flushing it down the drain. (anybody need two $5000 308 heads to use as door stops?) http://www.airborncoatings.com/homepage.html  | ||
| Matt Morgan (Kermit)
Junior Member Username: Kermit Post Number: 163 Registered: 8-2001 |
While the removal of the stock covers has been done succesfully in some cases, and I cannot disagree with their success, I recall a GT4 that had them removed and a leak from the cam cover dripped down onthe hot headers, and caused a fire that was almost disastrous. We offer The ceramic coating, and from Experience, IT WORKS! | ||
| Verell Boaen (Verell)
Intermediate Member Username: Verell Post Number: 1291 Registered: 5-2001 |
Ric, re"cooler under the hood" Is the ceramic coating really that good? (Haven't seen it, just lots of references to it.) How good a job can the ceramic coaters do on the inside of the headers? How much prep will they do for you? BTW, good to read a 'ric' post again, they're all too infrequent these days... | ||
| Ric Rainbolt (Ricrain)
Member Username: Ricrain Post Number: 559 Registered: 2-2002 |
The metal shell deteriorates over time and gets loose from repeated expansion cycles. I've removed said shields from my 308 and others' 308's. If you feel punchy, take the headers off and have them ceramic coated, and it'll be cooler under the hood. If not, do what Verall says, or for a quick-but-dirty solution, take a pail of channel lock pliers and "crimp" the metal shell in various places. | ||
| Verell Boaen (Verell)
Intermediate Member Username: Verell Post Number: 1288 Registered: 5-2001 |
Depends on where it's coming loose. If it's one of the smaller diameter areas, tighten a long SS hose clamp around it. In the other areas, figure out where the gaps between the header pipes are & put a long thin SS bolt thru with ~1.5" washers on each end. If you can get at the area that's leaking, re-pack the gap witn wood stove braided fibreglass gasket. Helpfully, | ||
| Bill V (Doc)
Member Username: Doc Post Number: 462 Registered: 9-2001 |
Yes, I've begun to hear a rattle. Is there any material which one might be able to stuff betwwen the header and manifold? Given how hot it is there I don't know what that might be. How would one take it off--by cutting? | ||
| Hans E. Hansen (4re_gt4)
Intermediate Member Username: 4re_gt4 Post Number: 1746 Registered: 4-2002 |
Rip the damn things off. Mine have been gone for decades. No problems whatsoever. I'm reasonably sure that they are there to concentrate heat in the headers for increased thermal efficiency (read: less smog). W/O, I've had absolutely no problems, including original starter and alternator. (These are parts that could be a problem with excess heat.) | ||
| Skip Williamson (Darolls)
Junior Member Username: Darolls Post Number: 162 Registered: 7-2003 |
They don't fit tight. How loose is yours. Is it loose enough that you hear it rattling? | ||
| Bill V (Doc)
Member Username: Doc Post Number: 461 Registered: 9-2001 |
Any help out there on this question? | ||
| Bill V (Doc)
Member Username: Doc Post Number: 459 Registered: 9-2001 |
I just noticed that the heat shield surrounding the exhaust manifold on my '85 308 is loose. How does one tighten it up? |