The Jalopy Journal

primed55 · 05-27-2012, 07:14 PM

I'm running an old Glenwood cast aluminum timing cover and if I torque the balancer all the way it hits the cover? In the past I’ve just tightened it till it got as close to the cover as i was comfortable with, lock-tighted the bolt and ran it, but was wondering if anyone else has ever had this issue, if there's a spacer?, or any other solution? ffice

ffice" />>>

Thanks
-Justin

**SKULL ORCHARD** · 05-27-2012, 07:28 PM

Just went thru this with a remake of a hilborn cover had to clearance the front cover with a die grinder to clear everything .

Normal Norman · 05-27-2012, 07:29 PM

Has the outer ring slipped inward? Just a thought. Normal Norman

primed55 · 05-27-2012, 07:39 PM

Yeah thought about hitting with the grinder...

Waddayacare · 05-27-2012, 09:37 PM

Sounds like a demonic "hermonic balancer"!

Traditions Racing · 05-28-2012, 06:55 AM

You must take what ever necessary means to properly clearance that damper and or the front cover. The damper properly torqued and located fully onto the end of the crank snout is what locates and secures the timing gear in place. Allowing the timing gear to move back and forth laterally on the crank snout is robbing power and is a invitation for trouble.

oj · 05-28-2012, 07:19 AM

I made a spacer/shim to tighten the balancer against the timing gear etc - 60thou-ish? You got to have everything down there wrench-tite or you'll have problems.

exwestracer · 05-28-2012, 07:55 AM

Yes, as mentioned the balancer MUST be fully tightened against the lower timing sprocket. If you feel you need to run a spacer, as OJ suggested; make sure it goes between the balancer and sprocket, not between the sprocket and crank.

primed55 · 05-28-2012, 10:26 AM

The dampner is new. I had this same problem with the old motor running a fluid dampner and this motor is running a brand new stock balancer. I took some measurements last night and it looks like i need a 1/4" to bottom out on the timing gear plus at least another 1/8" to clearance the cover, 5/8" is too much material to remove from the cover, so i'm thinking of making a spacer. However on another forum someone said that crank have a chaffered and not to use a spacer. Anyone know if this is true?

FritzJr · 05-28-2012, 10:51 AM

The 1955 to 1962 Corvettes used a spacer for the balancer to compensate for the motor mount thickness so that the pulleys would line up. Corvette Central has this spacer in their catalog. Their part number is 301020. Other Corvette suppliers also have them.

richie rebel · 05-28-2012, 10:52 AM

5/8" is a pretty thick spacer no?

exwestracer · 05-28-2012, 11:16 AM

THe math only adds up to 3/8" but who am I to argue...?

primed55 · 05-28-2012, 10:09 PM

Quote:

Originally Posted by exwestracer

THe math only adds up to 3/8" but who am I to argue...?

Oops yeah 3/8" (stupid california public school system).

SaltCoupe · 05-28-2012, 11:27 PM

Quote:

Originally Posted by Waddayacare

Sounds like a demonic "hermonic balancer"!

That was pretty good! lol

**325w** · 05-29-2012, 06:26 AM

Can you go to a small balancer. Like on the 50 to 60,s sbc

primed55 · 05-29-2012, 10:15 PM

Went ahead and sacrificed an old balancer, cut what I needed off the yoke and trued it up on the lathe. I think it’s gonna work!

dreracecar · 05-30-2012, 12:46 PM

Small block snouts are too short to begin with so adding a spacer really adds to the load on the end of the HB. I would cut the cover down as much as possible and make the shim as thin as I could. Also I would make the crank bolt washer a "HAT" style that would register to the ID of the balencer to keep the 7/16" bolt from walking when tightening it down.

Engine man · 05-30-2012, 01:37 PM

Now do your belts line up?

05-27-2012, 07:14 PM	#1
primed55 Grenade Inspector Join Date: Feb 2005 Location: Northern California Posts: 296	SBC Hermonic Balancer hitting timing cover? I'm running an old Glenwood cast aluminum timing cover and if I torque the balancer all the way it hits the cover? In the past I’ve just tightened it till it got as close to the cover as i was comfortable with, lock-tighted the bolt and ran it, but was wondering if anyone else has ever had this issue, if there's a spacer?, or any other solution? fficeffice" />>> Thanks -Justin __________________ The Devil made me do it the first time, the second time I done it on my own.

05-27-2012, 07:28 PM	#2
SKULL ORCHARD Alliance Member Join Date: Jul 2009 Location: KS Posts: 415	Re: SBC Hermonic Balancer hitting timing cover? Just went thru this with a remake of a hilborn cover had to clearance the front cover with a die grinder to clear everything . __________________ "Run your mouth face to face, don't hide behind your keyboard"

05-27-2012, 07:29 PM	#3
Normal Norman Member Join Date: Aug 2006 Location: Goshen IN. Posts: 466	Re: SBC Hermonic Balancer hitting timing cover? Has the outer ring slipped inward? Just a thought. Normal Norman __________________ "You can go a long ways with a smile. You can go a lot farther with a smile and a gun." Al Capone

05-27-2012, 07:39 PM	#4
primed55 Grenade Inspector Join Date: Feb 2005 Location: Northern California Posts: 296	Re: SBC Hermonic Balancer hitting timing cover? Yeah thought about hitting with the grinder... __________________ The Devil made me do it the first time, the second time I done it on my own.

05-27-2012, 09:37 PM	#5
Waddayacare BANNED Join Date: Sep 2011 Location: NY - The land of Taxes, Fees & NO Gun Rights Posts: 3,917	Re: SBC Hermonic Balancer hitting timing cover? Sounds like a demonic "hermonic balancer"!

05-28-2012, 06:55 AM	#6
Traditions Racing Old School HAMBer Join Date: Sep 2008 Location: Central East Coast Florida Posts: 3,536	Re: SBC Hermonic Balancer hitting timing cover? You must take what ever necessary means to properly clearance that damper and or the front cover. The damper properly torqued and located fully onto the end of the crank snout is what locates and secures the timing gear in place. Allowing the timing gear to move back and forth laterally on the crank snout is robbing power and is a invitation for trouble.

05-28-2012, 07:19 AM	#7
oj Alliance Member Join Date: Jul 2008 Location: Berryville, Virginia Posts: 3,690	Re: SBC Hermonic Balancer hitting timing cover? I made a spacer/shim to tighten the balancer against the timing gear etc - 60thou-ish? You got to have everything down there wrench-tite or you'll have problems. __________________ *'Molon Labe'*

05-28-2012, 07:55 AM	#8
exwestracer Old School HAMBer Join Date: Aug 2008 Location: Latrobe, PA (Mister Rogers' neighborhood) Posts: 3,440	Re: SBC Hermonic Balancer hitting timing cover? Yes, as mentioned the balancer MUST be fully tightened against the lower timing sprocket. If you feel you need to run a spacer, as OJ suggested; make sure it goes between the balancer and sprocket, not between the sprocket and crank. __________________ Words of Wisdom from an old master...

05-28-2012, 10:26 AM	#9
primed55 Grenade Inspector Join Date: Feb 2005 Location: Northern California Posts: 296	Re: SBC Hermonic Balancer hitting timing cover? The dampner is new. I had this same problem with the old motor running a fluid dampner and this motor is running a brand new stock balancer. I took some measurements last night and it looks like i need a 1/4" to bottom out on the timing gear plus at least another 1/8" to clearance the cover, 5/8" is too much material to remove from the cover, so i'm thinking of making a spacer. However on another forum someone said that crank have a chaffered and not to use a spacer. Anyone know if this is true? __________________ The Devil made me do it the first time, the second time I done it on my own.

05-28-2012, 10:51 AM	#10
FritzJr Grenade Inspector Join Date: Feb 2007 Location: Massachusetts Posts: 275	Re: SBC Hermonic Balancer hitting timing cover? The 1955 to 1962 Corvettes used a spacer for the balancer to compensate for the motor mount thickness so that the pulleys would line up. Corvette Central has this spacer in their catalog. Their part number is 301020. Other Corvette suppliers also have them.

05-28-2012, 10:52 AM	#11
richie rebel Senior Member Join Date: Oct 2007 Location: allison park pa Posts: 1,059	Re: SBC Hermonic Balancer hitting timing cover? 5/8" is a pretty thick spacer no?

05-28-2012, 11:16 AM	#12
exwestracer Old School HAMBer Join Date: Aug 2008 Location: Latrobe, PA (Mister Rogers' neighborhood) Posts: 3,440	Re: SBC Hermonic Balancer hitting timing cover? THe math only adds up to 3/8" but who am I to argue...? __________________ Words of Wisdom from an old master...

05-29-2012, 06:26 AM	#15
325w Alliance Member Join Date: Feb 2008 Location: texas Posts: 2,895	Re: SBC Hermonic Balancer hitting timing cover? Can you go to a small balancer. Like on the 50 to 60,s sbc

05-29-2012, 10:15 PM	#16
primed55 Grenade Inspector Join Date: Feb 2005 Location: Northern California Posts: 296	Re: SBC Hermonic Balancer hitting timing cover? Went ahead and sacrificed an old balancer, cut what I needed off the yoke and trued it up on the lathe. I think it’s gonna work! __________________ The Devil made me do it the first time, the second time I done it on my own.

05-30-2012, 12:46 PM	#17
dreracecar Senior Member Join Date: Aug 2009 Location: so-cal Posts: 1,059	Re: SBC Hermonic Balancer hitting timing cover? Small block snouts are too short to begin with so adding a spacer really adds to the load on the end of the HB. I would cut the cover down as much as possible and make the shim as thin as I could. Also I would make the crank bolt washer a "HAT" style that would register to the ID of the balencer to keep the 7/16" bolt from walking when tightening it down.

05-30-2012, 01:37 PM	#18
Engine man Senior Member Join Date: Jan 2011 Location: Wisconsin Posts: 1,479	Re: SBC Hermonic Balancer hitting timing cover? Now do your belts line up? __________________ Anything dropped while working on a vehicle will roll underneath to the exact center.

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