Oil Pump Adapter

[peter dowdle]

My 441 MK 2 has a badly cracked oil pump adapter which bolts on to the bottom of the oil pump to accept the oil lines that lead to the external oil filter. The factory at this stage has not responded to my request for a replacement. Can any one help?.

[Kevin H]

Hi Peter,

Is it this bit that is broken - see attached image

Either way, these parts should all be available from an Mopar parts supplier - mostly in the US.

[peter dowdle]

Yes thats the one but my mopar man in melboure has never seen one before. Is that one for sale?

[Kevin H]

Peter, this one isn't for sale. I never sell parts from a car that I still own, just in case!



I was going to say you should be able to find one quite easily online, but after an hour of searching it seems this is not the case. However, there are certainly remote filter kits available for those oil pumps.

Suggest you chase up the factory for a response- it may have been made for them.

I don't suppose the one you have can be welded?

[Thor]

Kevin, the part in your picture also looks broken. A part like that could be welded and re-machined, but I suspect the welded version would be weaker than the original.

I offer a service of taking in parts like that, carefully modelling them in 3D CAD and then making them from solid. This is obviously expensive, but a lot easier than finding unobtainable parts. Difficult to estimate from a picture, but probably about £1,200 for a one-off, but if a bunch of big-block 411 owners wanted to order 10, they'd be more like £500 each. Still sounds expensive, but you have to cast and then machine something like that in quantities of several hundreds to get the price below £100.

This just might have been something specially made for Bristol, I don't know.

[peter dowdle]

Thank you both . Mine has been welded once earlier in its life and recently for me. The problem is the thread is tapered and as you tighten the pipe fitting it puts undue pressure on the 50 year old cast iron causing it to crack. One option is to bore the thread out and re tap with a non tapered thread, using an O ring to seal the oil.

I rang the factory and they advised no new stock but may have a second hand one. Still waiting for confirmation.

Elko Performance Parts in Melbourne (chrysler specialists ) know of a kit out of the USA that would have possibly the right adapter, but you have to buy the whole setup just to get the part you need.

The JOYS of bristol ownership.

[peter dowdle]

I have just been advised that Bristol have a second hand one for me