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10-26-2009, 06:25 PM
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#1 |
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Registered User
Join Date: Dec 2008
Location: Pleak, Texas
Posts: 420
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need some advice...
I've got a 250 I6 with a slipped harmonic balancer.
 So...I have to buy a new one. My question is, how do yall guys go about installing one? On my Jeep I could just use a long bolt in the end of the crank and just suck it up to the engine. The Chevy crank is just an inverted cone with no bolt to hold on the balancer. Just a press fit. Any suggestions are welcome.
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-1967 Chevrolet Fleetside LWB- 350 V8 w/thumpr cam, NV3500, 3.08 gears, A/C, PS  -1983 Chevy Silverado C1500- 383 stroker, TH400 -1989 Chevy Silverado K1500 SWB- 5.3L swap, 700R4, 3.42 gears -And a '66 Ford Mustang- 200 I6, C4 trans, rust bucket "The only thing we have to fear is fear itself." -FDR (and maybe rust too)  You've gotta be able to stop and steer before you can go fast! |
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10-26-2009, 06:27 PM
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#2 |
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Gone Fishing
Join Date: Aug 2005
Location: Fort Worth, Texas 76135
Posts: 12,361
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Re: need some advice...
Try using a harmonic balancer installer tool
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68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop  Frame of resto has been started2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616 |
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10-26-2009, 06:42 PM
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#3 |
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Registered User
Join Date: Dec 2008
Location: Pleak, Texas
Posts: 420
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Re: need some advice...
Can't. It uses threads in the end of the crank to push the balancer on. Threads that I don't have... Last time I just used a block of wood and a hammer. It's probably not the "correct" way, but it got the job done. And the engine never gave me any problems...until now. It's a 40+ year old balancer anyway. It was going to go out sooner or later.
__________________
-1967 Chevrolet Fleetside LWB- 350 V8 w/thumpr cam, NV3500, 3.08 gears, A/C, PS -1983 Chevy Silverado C1500- 383 stroker, TH400 -1989 Chevy Silverado K1500 SWB- 5.3L swap, 700R4, 3.42 gears -And a '66 Ford Mustang- 200 I6, C4 trans, rust bucket "The only thing we have to fear is fear itself." -FDR (and maybe rust too) You've gotta be able to stop and steer before you can go fast! |
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10-26-2009, 08:00 PM
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#4 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,992
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Re: need some advice...
Put the balancer in the oven for about 15 min.Don't set the temp too high but warm it up good.Use a pair of welding gloves and do it on a cold day.You'll probably still have to tap it on with a hammer and block of wood but not as hard.
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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10-26-2009, 08:07 PM
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#5 |
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Active Member
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: need some advice...
The way I've done it: Remove the radiator first it will be a lot easier and prevent damaging it. Then go get a big heavy duty hammer- not a carpenter's or ball peen one. With a flat piece of 2X4 bang it in. Once it's started, you can tap it in but be careful not to hit the outer ring.
Now, the way you should do it: Have a machine shop drill and tap the end of the crank. A lot of guys have used the bang it in method with no problems. The only time I had a problem is when the 2X4 slipped and I messed up the balancer... |
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10-26-2009, 11:24 PM
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#6 | |
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Registered User
Join Date: Oct 2008
Location: Taylor, TX
Posts: 95
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Re: need some advice...
Quote:
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1970 Short/Fleet C-10 (Project) -Slammed and Tubbed 1955 Cameo -Straight six, Turbo Hydro option 1955 BelAir 2 door post -All original down to the oil bath air cleaner 1964 Corvette -All power A/C 327 4 spd. tanker 
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10-26-2009, 08:03 PM
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#7 |
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Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,179
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Re: need some advice...
sledge hammer and block gets mine on everytime, never thought about heating it,,,,
Good tip Panel D..... Smitty
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71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 69 C30 Former Motor Home, Flat Bed time 70 G20 Red-E-Kamp Conversion "I'm your Boogy Van" |
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10-26-2009, 09:40 PM
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#8 |
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Watch out for your cornhole !
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: need some advice...
Another easy way is to buzz it into place with an air hammer and a wide flat bit.
I've got one like number 5. It works great. 
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I'm on the Instagram- @Gearhead_Kevin |
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10-26-2009, 10:21 PM
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#9 |
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Registered User
Join Date: Dec 2008
Location: Pleak, Texas
Posts: 420
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Re: need some advice...
Thanks for all the suggestions guys. I think I'm going to go with Panel Deland's idea. I'll also throw a new seal in for good measure. While I'm at it, I'll replace the valve cover gasket, water pump, manifold gasket, touch-up the paint on the front of the engine....
 You know how it goes. These trucks are never ending projects. Just when you think you've done everything that you could possibly do, something new pops up.
__________________
-1967 Chevrolet Fleetside LWB- 350 V8 w/thumpr cam, NV3500, 3.08 gears, A/C, PS -1983 Chevy Silverado C1500- 383 stroker, TH400 -1989 Chevy Silverado K1500 SWB- 5.3L swap, 700R4, 3.42 gears -And a '66 Ford Mustang- 200 I6, C4 trans, rust bucket "The only thing we have to fear is fear itself." -FDR (and maybe rust too) You've gotta be able to stop and steer before you can go fast! |
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10-26-2009, 11:19 PM
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#10 |
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Registered User
Join Date: Jan 2006
Location: Take Off
Posts: 1,908
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Re: need some advice...
I thought that hammering on it could screw up the end play of the crank against the main thrust bearing and/or damage the main bearings.
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10-27-2009, 09:19 AM
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#11 |
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Registered User
Join Date: Jun 2007
Location: Dansville, NY
Posts: 248
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Re: need some advice...
If you hammer it on, how do you line up timing mark with any reasonable degree of accuracy?
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DIY body and paint work is cheap, making it look good... priceless -------------------------------------------- My Toys; ’26 Ford Model T ‘72 Triumph Spitfire 1500 '09 "The Briggs Flyer" Gettin' High. |
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10-27-2009, 09:27 AM
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#12 |
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Registered User
Join Date: Dec 2008
Location: Pleak, Texas
Posts: 420
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Re: need some advice...
It lines up with a key in the crank. I've done this before, just wanted to see if there was an alternate method of installation. I really don't like hammering it on, but it seems to be the only way. I guess the engineers at GM designed it this way because they knew that the I6 was bulletproof.
__________________
-1967 Chevrolet Fleetside LWB- 350 V8 w/thumpr cam, NV3500, 3.08 gears, A/C, PS -1983 Chevy Silverado C1500- 383 stroker, TH400 -1989 Chevy Silverado K1500 SWB- 5.3L swap, 700R4, 3.42 gears -And a '66 Ford Mustang- 200 I6, C4 trans, rust bucket "The only thing we have to fear is fear itself." -FDR (and maybe rust too) You've gotta be able to stop and steer before you can go fast! |
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10-27-2009, 09:38 AM
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#13 |
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Registered User
Join Date: Jun 2007
Location: Dansville, NY
Posts: 248
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Re: need some advice...
So if your outer ring has slipped, can you pull the Balancer and re-build it and put it back together to put the outer ring where the timing mark ought to be? Or do you have to replace it?
__________________
DIY body and paint work is cheap, making it look good... priceless -------------------------------------------- My Toys; ’26 Ford Model T ‘72 Triumph Spitfire 1500 '09 "The Briggs Flyer" Gettin' High. |
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10-27-2009, 09:48 AM
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#14 |
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Registered User
Join Date: Oct 2008
Location: Taylor, TX
Posts: 95
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Re: need some advice...
As far as I know you dont rebuild a balancer.
__________________
1970 Short/Fleet C-10 (Project) -Slammed and Tubbed 1955 Cameo -Straight six, Turbo Hydro option 1955 BelAir 2 door post -All original down to the oil bath air cleaner 1964 Corvette -All power A/C 327 4 spd. tanker
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