| Author |
Message |
63Fiberbuggy
Samba Member
Joined: January 15, 2007
Posts: 217
Location: SC
|
 Posted: Sat Apr 25, 2015 7:39 am Post subject: exhaust leak at J-tube/Header flange |
 |
|
| I tried new gasket (copper) and torquing the snot out of 2-bolt flange, still have a puff clearing on top side. Any secret remedies to stop small leaks? |
|
| Back to top |
|
 |
A E Numan
Samba Member
Joined: March 12, 2006
Posts: 238
Location: Portland Oregon
|
| Posted: Sat Apr 25, 2015 8:37 am Post subject: |
|
|
| Buy a set of the CB thick composite gaskets, They work very well. |
|
| Back to top |
|
|
wythac
Samba Member
Joined: August 02, 2004
Posts: 2791
|
| Posted: Sat Apr 25, 2015 9:32 am Post subject: |
|
|
| Find a buddy with a belt sander. Apply it the the flange. It will plane it flat. Use those CB gaskets. Most of those cheap flanges are so thin that they dog ear easily. |
|
| Back to top |
|
|
Dr OnHolliday
Samba Member
Joined: May 11, 2012
Posts: 1215
Location: was Escondido now San Berdoo
|
| Posted: Sat Apr 25, 2015 10:20 am Post subject: |
|
|
| wythac wrote: |
| Find a buddy with a belt sander. Apply it the the flange. It will plane it flat. Use those CB gaskets. Most of those cheap flanges are so thin that they dog ear easily. |
I prefer hand filing with a bastard file, but care is necessary....of course, mistakes are not made as fast or extreme with a file vs a power tool!
I similarly make sure the head surface is flat when its off and studs out...
_________________
1965 Type 1 sunroof Baja / about 70k miles on self-rebuilt '74 1600 and counting / SP heads and aftermarket valve keepers / non-doghouse shroud with external cooler and filter / 1.5 qt extended sump / Weber 32/36 DFAV progressive carb / 009 dist with Pertronix / 1.25 ratio rockers and ball adjusters / 1.5" stainless steel J-pipes and carbon steel baja exhaust |
|
| Back to top |
|
|
63Fiberbuggy
Samba Member
Joined: January 15, 2007
Posts: 217
Location: SC
|
|
| Back to top |
|
|
wythac
Samba Member
Joined: August 02, 2004
Posts: 2791
|
| Posted: Sat Apr 25, 2015 9:46 pm Post subject: |
|
|
Perhaps I have less patience for hand tools than you do, doc. A belt sander has a flat surface under the belt. You'd have to be someone who shouldn't use any power tool at all to screw up that job. I don't even bother bolting up store bought exhaust flanges until I've put the belt to them, and every one I've ever gone after was not truly flat before I started. Usually the exhaust tubing protrudes past the flange.
That being said, I wouldn't use a belt sander on a head. |
|
| Back to top |
|
|
|
