Jb Welb Holding Up In Motor?
02-15-2004, 10:43 AM
#12
Senior Member
Join Date: Jul 2003
Posts: 116
Originally Posted by Judge Ito' date='Feb 15 2004, 06:05 AM
I also have tips and tricks for this problem. I think I should write a "if you ported into the water jacket fix it mod"
02-17-2004, 06:27 PM
#14
Fabricator
Join Date: Jan 2004
Location: Central Ohio (Hebron) Zephyrhills Fla.
Posts: 1,322
Originally Posted by Silver Ninety Three' date='Feb 14 2004, 08:12 PM
Well after spending like 5 hours on my 2ndary ports, SOMEONE decided that they needed to be cleaned up further and broke into the water jacket. The port is a monstrous street port and the pinhole is about 1/4" from where it closes towards the center of the rotor housing. I couldn't find any devcon at the autoparts store, just some other liquid steel stuff that wasn't recomended for coolant. I used some jb weld to fill in the pinhole. This was the front iron, so I was also able to put jb welb on the inside through the hole for the water pump gasket. I plan to let it cure for a coupkle days then sand it down smooth to the rest of the port. I considered welding it. I could probably get to the back through the hole from the water pump and put a spot weld in there. Think I should do that, or will the jb hold up? I don't have the time to report another housing.
Tape over the hole on the port side and lay in about 1/4 of epoxy material inside the water jacket. Make a big spot of it. Pile it on. If it was down to bare metal. If it was rough, and if it was clean. it will never leak. Just not a problem. It only ever gets hot after shut down when the engine normalizes (heat soaks). While running, the intake side is cold on a NA engine.
02-21-2004, 06:25 PM
#18
Senior Member
Join Date: Jun 2003
Location: Columbus, Ga
Posts: 233
just happened to me today trying to get my ports to match in my int. i was just thinking just a little more then i see that little black bitch of a hole and that was it i was so pissed 
anyways any one have any tips for port matching?
02-22-2004, 04:47 AM
#19
Senior Member
Join Date: Nov 2002
Location: Honolulu, Hawaii USA
Posts: 925
This is one of the reasons why I refuse to offer porting templates.
Porting is a 3D process which goes beyond the 2D porting template.
Experienced rotary engine porting experts know what the limits of the irons are, and do their best not to induce damage or dangerous porting techniques that can compromise the engine (i.e. water jacket).
-Ted
Porting is a 3D process which goes beyond the 2D porting template.
Experienced rotary engine porting experts know what the limits of the irons are, and do their best not to induce damage or dangerous porting techniques that can compromise the engine (i.e. water jacket).
-Ted
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