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I have a reverse rotation Crane 741 cam and special cut distributor gear. This gear will mount on any .500 distributor shaft.
This drives the oil pump the same way. Yes the same way! This works with a standard timing chain. The firing order is just opposite. This will make the Crank run in the reverse direction I have never had to change the rear main seal. Yes same seal! The pistons were the same exact Ross part number for the counter as normal rotation. I have detailed threads posted years ago on all this. if anyone could use the cam just pm me. KR |
I don't know what the big hangup here about a reverse rotation engine is. They been around for DECADES. I know a few guys who were running 1000+hp reverse rotation engines in 39 Ocean express cats, 32 hustlers, with arneson 1600 series drives. Not to mention a million cruisers are still running reverse rotation engines.
http://www.marineengines4less.com/bu...neengines.html type ''502'' in the search box. New GM base engine, avail in reverse rotation also. Another http://affordablemarine.com/gm.htm another http://wolfiesenterprises.com/8200base.htm another http://www.miamimarina.com/frontend/...1D8A?id=217561 |
Originally Posted by f_inscreenname
(Post 3882166)
Cam should spin the same way as normal. It's the crank that spins backward. That's why there is only 2 gears and not 2 gears and a chain timing set. The dist turns the same way you just put the plugs wires on it backward. If you spin the cam backward not only would you need a custom dist but you would also need a custom oil pump and unless someone builds it for you, you are not going to find them.
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Originally Posted by ezstriper
(Post 3882953)
thats the old way they did with gear to gear, not with the gen VI engines, they use a timing chain, cam has a reverse cut gear along with the cam, now this is where the problems come up...when you pull down on the dist shaft by reversing it...there is no thrust load bushing to absorb the load..kills std dist in a very short time !!! I did 4 before I traced down the "special made with extra load bearing" EST dist..the old gear to gear to me was a better deal but was told the wider gears would not clear the newer timing covers.
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Anyone want to take a guess which is the counter?
http://i1293.photobucket.com/albums/...pse9c622d8.jpg |
Originally Posted by f_inscreenname
(Post 3883031)
What about the oil pump that runs off the dist also?
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the cam is running in reverse, but with the reverse cut gears on cam & dist, that runs correctly to make the oil pump work...
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Originally Posted by ezstriper
(Post 3883827)
the cam is running in reverse, but with the reverse cut gears on cam & dist, that runs correctly to make the oil pump work...
http://i1293.photobucket.com/albums/...psfe341bc9.jpg |
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there will be a test on this later
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