I'm looking at some engines and they are a pair that came out of a Cigarette. Not sure if one is counter rotation. Is there a way to tell by looking at them on stands? They are 420 Mercruisers.
Any help would be great!
I'm looking at some engines and they are a pair that came out of a Cigarette. Not sure if one is counter rotation. Is there a way to tell by looking at them on stands? They are 420 Mercruisers.
Any help would be great!
Pull the valve covers, crank by hand, watch intake valves for firing order?
When you put it in reverse and the bow slams into the dock??
Check distributor wires for which direction it's spinning to get the right firing order.
Maddy's Daddy
L.I.,N.Y.
inlet and outlet hoses on the sea water pump shouldn't match
starter drive teeth angle shouldn't match
harmonic balancer timing marks / tabs shouldn't match
Scott if they were stern drive engs matted with trs drives and trans there both lefty's
mario
Firing order on the cap. On inboards with Velvet drives The starter is usually bolted on backwards "aft of the engine". I do not believe that there has ever been a reverse rotation Stern drive. But the firing order is truly the best way to tell. Or jump the starter and see which way it cranks
machinist ,bore it deeper,ream it bigger, and lap it to a fine finish
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Remove the timing cover and look for a gear drive w/an idler to reverse cam rotation.
George Carter
Central Florida
gcarter763@aol.com
http://kineticocentralfl.com/
“If you have to argue your science by using fraud, your science is not valid"
Professor Ian Plimer, Adilaide and Melbourne Universities
Thanks for the great info guys. I missed out on these engines...I need to start looking again for a BBC. This guy had 2 and I figured I would buy both.
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