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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | New thread getting to the points.
1. Can a harmonic balancer be pulled and new one installed without pulling my 261? I assume you remove the radiator first.
2. Has anyone installed Dave's water pump adapter without pulling the engine? I've talked to Dave but would also like to talk to people who's done it.
I'm concerned about room for the balancer puller and room for drilling the 2 holes for the adapter.
Thanks!
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
| | | | | Joined: Sep 2011 Posts: 1,456 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,456 | You can pull the balance off just fine, the trick is installing it (unless the crank has been drilled & tapped).
You need to remove the flywheel cover & have a helper with a prybar hold the flywheel forward so as you apply force with to the damper you don't hammer the crank thrust bearing to death.
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
| | | | | Joined: Feb 2004 Posts: 29,819 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,819 | A hardwood wedge driven between the clutch cover and the bellhousing can serve as a "helper" also. Just do something to keep the hammer blows off the front of the thrust bearing. Use the water pump housing as a drill guide to spot-face a couple of dimples in the front of the block to be sure the holes get drilled in the right place.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | It’s not that much work to pull the front fender assembly. That will give you plenty of room for both jobs.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Feb 2004 Posts: 29,819 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,819 | I've been known to put the balancer snout end down on the warmer plate of a Mr. Coffee machine for a few hours before driving it on- - - - -makes it drive on a lot easier!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Sep 2002 Posts: 158 knuckle head | | knuckle head Joined: Sep 2002 Posts: 158 | Considering the crankshaft weighs about 70 pounds....Do you think a 5 pound hammer will shock it enough to possibly damage the thrust bearing? Right or wrong many dampers have been hammered on over the years..
Dropping the damper into a large pot of boiling water for 15 minutes also works ..... | | | | | Joined: Feb 2004 Posts: 29,819 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,819 | "Better safe than sorry"- - - - -since it's so simple to wedge the crankshaft forward and eliminate any possibility of damage, why take a chance? Some poker players will draw to an inside straight in spite of 32:1 odds against success. They must be eternally optimistic!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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