Newbie Velvet Drive Question

[brl96]

I am restoring an old inboard that has been layed up for 10 years. It has a borg Warner velvet frive 72C. I am new to inboards and have a simple question. Should I be able to put it in gear without it running. The lever/shifter moves easily from forward to neutral amd reverse, but it appears to stay in neutral. Is this common or do I have a problem with the drive. The fluid in the drive was replaced.

 

[muc]

Re: Newbie Velvet Drive Question

The clutch packs are operated by hydraulic pressure, so the input shaft must be spinning to make pressure.
So, yes it must be running to shift.

 

[alldodge]

Re: Newbie Velvet Drive Question

I am restoring an old inboard that has been layed up for 10 years. It has a borg Warner velvet frive 72C. I am new to inboards and have a simple question. Should I be able to put it in gear without it running. The lever/shifter moves easily from forward to neutral amd reverse, but it appears to stay in neutral. Is this common or do I have a problem with the drive. The fluid in the drive was replaced.

The velvet trany is a hydraulic powered automatic just like the one in a car, but only has forward and reverse. Moving the shifter does nothing except move a shuttle valve in the tranny. So without the engine running you will notice no change

 

[Capt Ken]

Re: Newbie Velvet Drive Question

While you are back there and servicing everything, remove the lower starboard hose and unscrew the fitting. There is a wire screen inside the needs to be cleaned every so often.

 

[brl96]

Re: Newbie Velvet Drive Question

Thanks for your help