P38A Do I need an oil filler tube

AndyF07 · Oct 24, 2023

Hi,

Not sure how but when I removed the oil filler tube whilst changing valve cover gasket the plastic thread is damaged and won't screw back in. Engine is a V8 Thor. My question is do I actually need the tube as they seem expensive for very little benefit, or is there an oil cap that will screw in as on most engines and do the job?

Thanks for any help.

Cheers

Henry_b · Oct 24, 2023

You do need it, they can be a right pain to screw back in I find they try to cross thread, but with some perseverance it usually goes back in.

If a replacement is needed the aluminium tube and cap can be fitted from a RRC ebay usually has a few.

AndyF07 · Oct 24, 2023

Henry_b said:
You do need it, they can be a right pain to screw back in I find they try to cross thread, but with some perseverance it usually goes back in.

If a replacement is needed the aluminium tube and cap can be fitted from a RRC ebay usually has a few.

Thanks @Henry_b . Unfortunately the thread is completely ruined so defo need a new one. Do you know why a simple cap wouldn't work ?

Henry_b · Oct 24, 2023

AndyF07 said:
Thanks @Henry_b . Unfortunately the thread is completely ruined so defo need a new one. Do you know why a simple cap wouldn't work ?

From experience the baffle plate in the rocker cover prevents a standard cap being used, and a lack of space

kermit_rr · Oct 24, 2023

They don't ever need to come off, maybe you could use some metal putty to glue it in place?

pwood999 · Oct 25, 2023

Is it the plastic thread, or valve cover that's damaged ?

On my GEMS, I used thread lock on the tube, and make sure cap is not over tightened.

AndyF07 · Oct 25, 2023

Henry_b said:
From experience the baffle plate in the rocker cover prevents a standard cap being used, and a lack of space

pwood999 said:
Is it the plastic thread, or valve cover that's damaged ?

On my GEMS, I used thread lock on the tube, and make sure cap is not over tightened.

It's had it I'm afraid. No idea how it happened though. It's been on and off a few times for oil changes over time as it loosened before the cap though can't see how it would cause this. Anyway a new one on order and the valve cover thread looks fine

P38A Do I need an oil filler tube

AndyF07

Active Member

Henry_b

Think outside, no box required.

AndyF07

Active Member

Henry_b

Think outside, no box required.

kermit_rr

Very

pwood999

Well-Known Member

AndyF07

Active Member

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