Water Jacket Cover Plate on back of block

kmoses · Post by **kmoses** » Fri Apr 03, 2015 10:29 am

I just pulled the water jacket cover plate located on the back of the block. The plate is very pitted and rusty. I have access to some very thin .026" 316ss sheet and am going to sandwich this between the block and the heave steel plate. Other than a disimilar rate of thermal expansion (that is minimal at these temps.) between the stainless and steel cover plate, shouldn't this take care of my rusty plate problem forever?

azruss · Post by **azruss** » Fri Apr 03, 2015 11:35 am

you could be introducing some galvanic corrosion risk with 2 dissimilar metals.

131 · Post by **131** » Fri Apr 03, 2015 6:26 pm

If the gasket mating surface of the plate is not corroded, treat the existing corrosion with an inhibitor then paint the plate. POR-15 would be ideal, but it's a pain to work with.

kmoses · Post by **kmoses** » Fri Apr 03, 2015 8:56 pm

I thought about using POR-15 (used it for years and love it) but was worried that if for some reason it let go of the plate, it could block a water passage and overheat the engine.

vandor · Post by **vandor** » Sat Apr 04, 2015 3:34 am

If the coolant is replaced regularly corrosion should be minimal from this point on. That plate is very thick, it would have to be very badly corroded before I'd worry about it.

131 · Post by **131** » Sat Apr 04, 2015 7:13 am

http://www.vickauto.com/newstore/index. ... ts_id=3966

Water Jacket Cover Plate on back of block

Water Jacket Cover Plate on back of block

Re: Water Jacket Cover Plate on back of block

Re: Water Jacket Cover Plate on back of block

Re: Water Jacket Cover Plate on back of block

Re: Water Jacket Cover Plate on back of block

Re: Water Jacket Cover Plate on back of block