General => Douglas Motorcycles - General Discussion => Topic started by: ManfrerdSt on 28 Aug 2012 at 11:28

Title: I have questions
Post by: ManfrerdSt on 28 Aug 2012 at 11:28
Hello community,

I have questions about the restoration of my E31

can someone give me a legible page 12 of "Running Instructions Models T and S" (oil circuit)? I only have a very bad copy of it.

I restore just the engine, there are special features, what should you do?

Are there any experiences with the installation dimensions of a new piston?

On page 10 of the parts list there is part of number "c/11642" (non-return valve body with cap and ball). Where this section is installed? In my engine, it does not exist.

Regards Manfred
Title: Re: I have questions
Post by: hoejmark on 18 Oct 2019 at 15:05
I also have problems about the Non-return valve body in the T6/S6 crankcase that is placed just behind the breather tube with gauze.
What is the purpose of this valve?
And how is it to be placed, cone end upwards or downwards?
Hope somebody can help about these questions.
Regards Hoejmark