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Has anyone used a steel oil pump drive gear on the crankshaft in place of the original bronze gear? I cannot find any new bronze gears just new steel gears from Memphis Equipment. I'm just wondering if steel on steel would eat itself or should I use a used bronze gear.
I remember one person who went through 2 of the brass ones and then went to the steel...didnt hear of any more trouble after that...
Only thing I know...
I installed the steel gear and ran the engine a couple hours and the timing moved slightly from 5 degrees BTDC where I set it to about 3 BTDC. I wonder if the gear wore some already. Hopefully the gears will fit themselves in and not wear anymore.
First post :) can oil pump drive gear be replaced with out removeing the front cover? I have my new toy ,got it running ,than timing is on the moon. I remove plugs and dist. cap ,turn engine backwards and it almost 1/4 turn before rotor moves. I think there is alot of play in the drive gear. It look think you remove front crank seal ,oil pump shaft ,slinger and than gear. is that right??? thanks . I will post pic of vehicle soon
Turning the engine backwards causes the slack side of the timing chain to come under tension. The tentioner is a simple design and can't take out all the slack when turning engine backwards. Not recommended. I wouldn't disassemble the engine yet.
timing chain is not in control of oil pump drive gear /distributor drive . I beleave there should be little play .
Bill, if points are wearing, this will also change timing alittle.
any body, is it possiable to remove oil pump drive gear and slinger through the front crank seal boss ?
Dont know that anyone has ever tried that before...
Yes the drive gear can be removed from the seal bore in the timing cover. Remove the distributor, oil pump, damper, seal, slinger then the gear. You will probably need to remove the radiator to allow clearance to use a puller on the vibration damper.
Thanks bill, I'm flat rate tech myself for the past 25 years .And was looking for the easy way out.
Bill ,my 715 has the metal gear and it eat the oil pump gear . just pulled it apart. I have new drive gear and front crank seal coming , were is the best place to get a pump or a rebuild kit for the pump?
Thanks.
You may check with Memphis Equip. I'm not sure if they would have one or not. So you have a steel crank gear rather than the bronze gear. Is the crank gear worn also or is the oil pump only worn?
yes, both steel oil pump drive gear and oil pump are shot. runs a little then jumped time big time. The FD that had the truck kept on replacing distributor for jumping time ( three times) them sold truck to me for a song:) does any body may a oil pump gear kit ,so I can press it together??