Breather tube.

[pizza for you]

My original 1975 t did not have an oil filter, so when I decided to rebuild the engine I purchased a block that did have an oil filter. The original breather tube did not have the check valve but the block with the oil filter did, see pictures below. My question is, do I use the tube without the check valve or should I use the tube that has it ?

Second question is my T has a metal tube that is on the push rod for the clutch. Should I reuse it along with the cup shaped seals or should I not use the tube ?
Thanks.

 

[john zibell]

Yes and yes but do get new rubber pieces. To run an oil filter on a T block I believe you only need to drop the existing manifold and use a T-3 or later oil pan. By just using the later pan, you can keep frame and engine number matching.

 

[pizza for you]

Thanks for your help, much appreciated.

 

[Amboman]

If you are using the original breather box with internal disk-type valve, then you don't want to use the ball-type valve as well. One or the other - not both. If the disk inside the breather box is intact, then retain that and remove the ball-type valve. That ball-type valve isn't part of the tube you show, it slips into it and is removable.

Remove the hard plastic sleeve "seal" before inserting the cones. I've still had leaks with the cones and now use a stack of six o-rings, an idea developed by Dave Richardson. I'll send a set of six o-rings to anyone that wants them, for FREE.

 

[Amboman]

Yes and yes but do get new rubber pieces. To run an oil filter on a T block I believe you only need to drop the existing manifold and use a T-3 or later oil pan. By just using the later pan, you can keep frame and engine number matching.

Same as the Eldorado, the early 850-T engine cases weren't drilled with the necessary oil passages for a filter pan, they need to drilled and a filter front main bearing fitted.
thisoldtractor.com/moto_guzzi_loopframe_oil_filter_addition_-_adapting_an_existing_block_to_use_an_internal_filter.html

 

[pizza for you]

I take it the disk you are referencing is outlined in yellow. I would be interested in the o rings but I would gladly pay for them.

 

[Amboman]

Yes, that is the disk I am referring to. The o-rings cost me 8 cents each and first class postage is only 60 cents. PM me with your address and I'll send you some.