Crank pulleys will not bolt to balancer
(1) Not sure if I follow you but the original vibration damper with it's matching crank is still on the old 273.
(2) I need to use the 273 cast water pump to match the bottom radiator hose.
(3) If I used the 273 balancer w/the 318 timing cover, would I be able to see the original timing tab/mark(s) bolted to btm of pump?
(4) Are the 273 balancers still available new?
(5) The woodruff key position is different on the 318 vs 273 by how many degrees?
(6) If new balancers are not available for the year-specific 273, are balancers rebuildable and what are their merits of performance and longevity?
(7) Apologies for being a pest but greatly appreciate y'alls help as always!
Thanks fabo
Not a problem, I've been through this many times.
I would keep the vibration damper that came with the engine that you are using, as that has the proper balance for your crankshaft.
A 65 273 has a forged crank, and the 74 318 has a cast crank. I'm not sure if they are balanced the same to where the balancers are interchangeable or not, so I play it safe and use the vibration damper for the engine and crank that are going in the car.
Now from 69 to 70 the timing chain cover changed, they went to the aluminum water pump, and flipped the timing marks to the opposite side. (about 90°).
What I would do is:
1) Use the original damper from the 74 318.
2) Use the 65 273 timing chain cover, water pump, and timing marker.
3) Put the engine to tdc with a piston stop tool and then mark a new tdc mark on the 318 damper to match up with the old 273 timing marks. I like to use white out, white or silver touch up paint to make the marks stand out better.
4) With the original 65 timing cover and cast iron water pump, then you can still use the alternator brackets that came in your car, also the power steering is made to bolt up to the cast iron water pump for that year also if equipped.
5) then use the radiator and hoses for the 65 273 application.
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So in a nutshell run all the 273 front engine parts on the 318, but use the original 318 balancer and remark for the different tdc location on the damper to match the 65 273 marks on the timing cover tab....
I hope this clears it up for you, if not tell me where you are confused so I can try to explain it better....