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#1 |
Registered User
Join Date: Mar 2010
Location: Austin, TX
Posts: 299
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Any tricks with harmonic balancer removal?
I need to replace the timing chain cover gasket on my 72 gmc with the 350.
I'm going to replace the water pump and timing gears while I"m doing this. Any tricks for removing the harmonic balancer? I have a 3 bolt puller. Engine will stay in the truck. Thanks.
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1972 GMC Sierra LWB (Aquafresh) 1962 Cadillac Convertible 1962 Cadillac Sedan project |
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#2 |
Registered User
Join Date: May 2002
Location: Gainesville, Georgia
Posts: 704
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Re: Any tricks with harmonic balancer removal?
I like to put a large nut on the end of my puller so the threads in the crankshaft don't get messed up.
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We made Oklahoma a little after 3, Randy & his brother Bob & my old GMC... |
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#3 |
Registered User
Join Date: May 2002
Location: Gainesville, Georgia
Posts: 704
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Re: Any tricks with harmonic balancer removal?
To be clear, the nut is not threaded onto the puller, it is smaller than that. The round end of the puller rides in the hole of the nut and the nut spans the threads in the crankshaft.
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We made Oklahoma a little after 3, Randy & his brother Bob & my old GMC... |
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#4 |
Registered User
Join Date: Jul 2000
Location: NC
Posts: 987
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Re: Any tricks with harmonic balancer removal?
When I had to pull my damper and did not have the tool, I would go to autozone or whatever store that rents tools and rent the correct tool for the job. There is simply NOTHING more annoying than breaking something that could have been avoided by using the correct tool.
Last edited by Alex Hayley; 04-25-2011 at 04:25 PM. |
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#5 |
Moderator
![]() Join Date: May 2007
Location: Southern Cal
Posts: 20,005
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Re: Any tricks with harmonic balancer removal?
you can get the proper tool at autozone, etc thru a loan program. leave a deposit, when you return the tool, you get your deposit back, so it is free.
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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#6 |
454 MAKES IT ROAR
Join Date: Jan 2008
Location: Essex, U.K
Posts: 2,701
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Re: Any tricks with harmonic balancer removal?
I used the same bolt that held my balancer on, once I'd removed the bolt I pulled the large thick steel washer out, then put the bolt back and tightened it all the way back into the end of the crank, the puller then used that as it's pushing surface...worked perfectly.
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Nigel. An American living in a British body. 1971 Chevy Cheyenne 10 454 "In a time of universal deceit, telling the truth becomes a revolutionary act." - George Orwell "When injustice becomes law, resistance becomes duty" - Thomas Jefferson No more pain. 03.12.60 -- 12.28.10 http://www.youtube.com/Eightbanger |
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#7 |
Active Member
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Location: Centrally located between Houston, Austin and Waco. BCS area.
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Re: Any tricks with harmonic balancer removal?
Just as an fyi: If you're going to leave the radiator in place use something to protect it in case a tool slips. It's amazing how easy it is to nick it. I once dropped a wrench and it bounced of the fan and nicked the radiator. Had to remove it, take it to a shop and it cost me $40 to resolder and pressure test it.
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#8 |
Registered User
Join Date: Mar 2010
Location: Austin, TX
Posts: 299
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Re: Any tricks with harmonic balancer removal?
I have the proper tool and bolts, just wanted to make sure I wasn't missing any tips or tricks to it...havn't worked on a SBC in a long time.
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1972 GMC Sierra LWB (Aquafresh) 1962 Cadillac Convertible 1962 Cadillac Sedan project |
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#9 | |
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Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Any tricks with harmonic balancer removal?
Quote:
Oh, if your planning on doing the timing chain you'll also need to drop the oil pan as well as there are some metal tabs on the timing cover that "grab" behind the oil pan, you need the clearance to get the cover out. this of course opens a can of worms on weather you should replace the oil pan gasket too as doing so with the engine installed is a pita, or, try and get away without replacing it. I believe there are some aftermarket timing covers that allow removal of the cover without pulling the oil pan again for fine tuning timing advance, but i have also been told that some of them do leak..
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#10 |
Registered User
Join Date: Mar 2010
Location: Austin, TX
Posts: 299
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Re: Any tricks with harmonic balancer removal?
This is what I was hoping not to do. How far down do I need to remove the oil pan to remove the timing cover? A little or off? I was hoping to leave the oil pan alone!
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1972 GMC Sierra LWB (Aquafresh) 1962 Cadillac Convertible 1962 Cadillac Sedan project |
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#11 |
Registered User
Join Date: May 2002
Location: Gainesville, Georgia
Posts: 704
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Re: Any tricks with harmonic balancer removal?
You'll have to loosen the oil pan. Remove all bolts except the rear two, just loosen them a bit. You should be able to get the timing cover off without harming the oil pan gasket.
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We made Oklahoma a little after 3, Randy & his brother Bob & my old GMC... |
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#12 |
needs more $$$
Join Date: Mar 2004
Location: Sacramento
Posts: 1,936
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Re: Any tricks with harmonic balancer removal?
MrGoodpliers has you covered on what to do. It's really not too big of a deal since you already drained the fluids, it's just pulling out the bolts and loosing the back 2 then letting the pan down. This will actually save the pan gasket given it's in decent shape...if it's not, it's the best time to change it!
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1970 2wd Blazer |
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#13 |
Registered User
Join Date: Feb 2011
Location: Spokane, WA
Posts: 24
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Re: Any tricks with harmonic balancer removal?
ALSO IF YOU PLAN ON REMOVING THE OIL PAN IN ACCORDANCE TO GET THE TIMEING CHAIN COVER TO SEAL CORRECTLY. IF YOUR TRUCK IS A 2WD YOU WILL HAVE TO PULL THE MOTOR MOUNT BOLTS AND JACK THE ENGINE UP SEVERAL INCHES IN ORDER TO GET CLEARANCE FOR THE PAN TO SAFELY COME OUT!! THE PAN WILL HIT THE BOTTOM END OF THE CRANKSHAFT..
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