VELVET DRIVES

jakevr · Post by **jakevr** » Fri Aug 22, 2008 7:57 am

I have a 1970 36 ft trojan sea voyager. if im running one engine at very low rpms do i have to worry about the other engines shaft turning the transmison and doing any damage? i was told that was something to watchout for...

David Kane · Post by **David Kane** » Fri Aug 22, 2008 9:01 am

I've had a lot of trouble with my starboard engine quitting and having to run home on the port only. Would do 2-2.2k rpm on the port for as long as 20 miles at a time with no negative effect on the starboard velvet drive. BTW-just got my starboard engine problems hopefully solved last night. Have been posting progress reports on the Rust in #7 exhaust manifold thread. Will post the latest shortly.

Stripermann2 · Post by **Stripermann2** » Fri Aug 22, 2008 6:22 pm

The problem with that situation will be that if the prop is turning with the engine off, it could overheat. When the engine is running, the transmission fluid is being cooled via the trans cooler by coolant flow.

I have noticed when I troll for fish, if I'm running on just one motor for most of the day, when I start back up, the one engine, the trans will rattle like hell at idle, this can be common in this situation for the VD. Eventually it'll stop after getting up on plane and running for a while.

You can also stop the shaft from spinning by simply taking a pipe wrench and locking down the shaft against the stringer so it won't turn...

jakevr · Post by **jakevr** » Sat Aug 23, 2008 8:32 am

the lifters are shot in my starboard engine so after shes warmed up the oil thins out and stalls at low rpms in shifting. so if im just going slow up the river i just run one engine then start the other just for docking.. there for shes cold and wont stall when i try backing her in.