Bondo or something on intake ??
#1
Bondo or something on intake ??
Have a 502 MPI and just completed the third season on the crate engine. Had a slight oil leak I couldn't find so I removed the intake. The oil leak has nothing to do with my question.
Both sides on the rear of the intake over the water jackets appear to have some Bondo. When I installed it the first time it was flat and smooth, but now one side buldges out and has a crack. I chipped out the Bondo and a small amount of water came out; I'm guessing water got in behind it and froze over last winter. The opening behind it is pretty rough; so do I just clean the area, mix up some more Bondo and do some sand and smoothing?
Both sides on the rear of the intake over the water jackets appear to have some Bondo. When I installed it the first time it was flat and smooth, but now one side buldges out and has a crack. I chipped out the Bondo and a small amount of water came out; I'm guessing water got in behind it and froze over last winter. The opening behind it is pretty rough; so do I just clean the area, mix up some more Bondo and do some sand and smoothing?
#2
RIPSTA Racing Team
VIP Member
I've repaired some intake manifolds that where corroded around the water jackets with a 2 part marine epoxy. Grind out the corrosion, apply the epoxy and grind to shape when dry. I used the intake gasket to get the proper opening shape. Bondo is porrous and absorbr moisture after awhile.
#4
I've repaired some intake manifolds that where corroded around the water jackets with a 2 part marine epoxy. Grind out the corrosion, apply the epoxy and grind to shape when dry. I used the intake gasket to get the proper opening shape. Bondo is porrous and absorbr moisture after awhile.
Thanks
#7
RIPSTA Racing Team
VIP Member
This was a marine epoxy. I was able to build it up in several places to at least 3/8" and let it dry before gringing it down. It was a 2 part system and was dark gray after mixing.