402 timing question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kenj39 · 01-11-2015, 02:56 AM

I had to replace some collapsed lifters so I figured since I'm in this far I would pull all the goodies on the front. Now I have decided to get a gear drive for fun new noises. Do I need to remove the doohickee with the timing line on it and drop the oil pan (as I have read about) to access the timing cover for the gear drive ?
Thank you for your help and time.

never been this far into a engine but your not gonna learn until ya get dirty,right ? I don't even have a torque wrench yet, lol

**TBONE1964** · 01-11-2015, 03:08 AM

The " doohickee" AKA harmonic balancer has to be removed. It is best to get a puller and a installer for this job. Do not take the advice of just beat it back on with a hammer and block of wood. It is hard on the thrust bearing.

You do not have to remove the oil pan on a big block but remember there are two up right bolts that go through the oil pan into the timing cover that need to be removed.

Good luck and have fun,
Tom

kenj39 · 01-11-2015, 03:15 AM

Thank you Tom for the Help . I will get those tools and and keep those 2 on the bottom in mind.
Getting this far has been fun keeps me off the couch , feels good to learn too.

01-11-2015, 02:56 AM	#1
kenj39 Registered User Join Date: Dec 2014 Location: springfield,or Posts: 7	402 timing question I had to replace some collapsed lifters so I figured since I'm in this far I would pull all the goodies on the front. Now I have decided to get a gear drive for fun new noises. Do I need to remove the doohickee with the timing line on it and drop the oil pan (as I have read about) to access the timing cover for the gear drive ? Thank you for your help and time. never been this far into a engine but your not gonna learn until ya get dirty,right ? I don't even have a torque wrench yet, lol Attached Images

01-11-2015, 03:08 AM	#2
TBONE1964 Cluster King Join Date: Nov 2012 Location: Junction City, OR Posts: 5,263	Re: 402 timing question The " doohickee" AKA harmonic balancer has to be removed. It is best to get a puller and a installer for this job. Do not take the advice of just beat it back on with a hammer and block of wood. It is hard on the thrust bearing. You do not have to remove the oil pan on a big block but remember there are two up right bolts that go through the oil pan into the timing cover that need to be removed. Good luck and have fun, Tom __________________ Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C

01-11-2015, 03:15 AM	#3
kenj39 Registered User Join Date: Dec 2014 Location: springfield,or Posts: 7	Re: 402 timing question Thank you Tom for the Help . I will get those tools and and keep those 2 on the bottom in mind. Getting this far has been fun keeps me off the couch , feels good to learn too.



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