Oil pump screws - loctite?

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debby

debby

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So when I put my rebuilt oil pump back together, what should I do to keep the screws from coming loose? The factory double-staked each screw. The end of each screw has two big punch marks. :shock:

I don't like hammering on perfectly good parts, so I was considering using loctite instead of punching the screws again. But blue loctite might not hold up to the heat (?) and red loctite might be too much for the brass cover plate?

Maybe just tighten the screws down hard and call it good? :?

Debby
 
I think if centre punching was good enough for Norton it should be good enough for you Debbie!
Dave.
 
Debby: I have always used the loctite 242 ( blue ) and never had any problems . Just make sure both threads are clean.
 
I too use Blue but I clean the threads in the brass plate and wire brush the screws. The drop of blue goes into the brass plate not the screws, any excess is wiped from the inside of the plate. No Loctite is let into the pump mating surfaces. All the extra product is pushed out the back and wiped off afterward. Any grease used in the packing of the body is kept off the screws so they are clean and dry as they touch the Loctite.
 
debby said:
The factory double-staked each screw. The end of each screw has two big punch marks.
Click to expand...


I don't recall there being any staking of the four screws on my MkIII's oil pump?

And there are none on my 'spare' used pump, either!

Blue Loctite should be fine.
 
daveparry said:
I think if centre punching was good enough for Norton it should be good enough for you Debbie!
Dave.
Click to expand...

At the time the oil pumps were first made I doubt Loctite was commonly available. In all likelihood, Loctite will do the job without the thread damage of staking.
 
Debby
I use Loctite 242 on any bolts/nut that is outside of the engine/gearbox or area where it does not live in oil. This will wrench undone without heat. I use Loctite 243 on anything that is living in an oil environment. Go to Loctite website and get the specifications for the application… PDF documents are available. Loctite is your Norton's best friend.
I hope that helps.
Regards,
CNN
 
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