1947 Chief cast iron Oil Pump

[49panhead]

Was the case iron oil pump body and bottom plate on a 1947 Chief painted or cad. plated from the factory?
Can any one help me with this Question.

[exeric]

It is my understanding they were cadmium plated until Indian went to the aluminum pump. I cad plated the pump for my '40 Chief.

[49panhead]

Thanks for your reply to my post. That was what I was thinking it was but wasn't sure.
Do I have to watch out for anything when the plater cadnium plates the pump so it doesn’t affect its operation, like the plunger and gear area surfaces?

[T. Cotten]

49Panhead!

Ordinarily, cad is a thin layer, and does not deposit upon edges as dramatically as other electroplates. Indeed, it is a lubricant, and assists rubbing surfaces.

However, it is obvious that your assembly must be in working order before it is broken down for cosmetics.

Although there is a total lack of congruity among shops offering testing, testing is still always prudent with an Indian oil pump, particularly for the sump return.

Good luck!

....Cotten

[Lonewolf_51]

Yes, it is very prudent to get your Indian oil-pump tested for proper pressure. I know two guys that have owned there bikes since the 60's, one a '50 Chief, the other a '51, and both pumps failed causing the engines to seiz. I immediatly removed three of my pumps from my Chief's and sent in to get tested; two needed new gears, and one tested out good. Better safe than sorry.