Oil pump screws - loctite?

debby

Joined

Apr 15, 2004

Messages

1,616

• Jul 7, 2009

• #1

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

 

swooshdave

Joined

Apr 15, 2009

Messages

11,525

• Jul 7, 2009

• #2

Punch it!

 

D

daveparry

Joined

Jul 4, 2009

Messages

372

• Jul 7, 2009

• #3

I think if centre punching was good enough for Norton it should be good enough for you Debbie!
Dave.

 

D

daveparry

Joined

Jul 4, 2009

Messages

372

• Jul 7, 2009

• #4

And appologies for misspelling your name Debby.

 

Ron Hulton

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Jul 18, 2005

Messages

298

• Jul 7, 2009

• #5

Debby: I have always used the loctite 242 ( blue ) and never had any problems . Just make sure both threads are clean.

 

Z

zackybilly1

Joined

Jun 24, 2009

Messages

63

• Jul 7, 2009

• #6

Ditto on the blue Loctite.

Z

 

N

norbsa48503

Joined

Apr 7, 2004

Messages

1,691

• Jul 7, 2009

• #7

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.

 

L.A.B.

Moderator

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Nov 20, 2004

Messages

20,349

• Jul 7, 2009

• #8

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.

 

J

JimC

Joined

Oct 12, 2007

Messages

2,904

• Jul 7, 2009

• #9

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.

 

CanukNortonNut

Joined

Aug 8, 2005

Messages

2,818

• Jul 7, 2009

• #10

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