Is this the right bracket? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70GMCer · 02-07-2008, 09:15 PM

I can't get anymore adjustment out of the alt bracket, and I can't use a smaller belt due to the valve covers. Is the adjust arm in the right position?

Luvlegs · 02-07-2008, 10:07 PM

Isn't there another bracket that looks just like that only it's a bit higher up to the arc and longer over the alternator? Other than that, it looks right to me (but, who am I...)

hyarbour · 02-08-2008, 02:01 AM

I had that problem with my old engine. On the new one I moved the alternator to the othe head.

70GMCer · 02-08-2008, 02:30 AM

Moving to the other head is not an option. I know that the alt was original on the right side. All the pulleys align up perfect. I'm wondering if I don't have the adjustment arm in the right place on the head or is that the wrong arm I have?

TotalChevy1 · 02-08-2008, 02:30 AM

That bracket looks a little small Here's a pic on mine not sure it will help

bdozeraz · 02-08-2008, 03:11 AM

I ran into the same problem on mine when I went to aftermarket valve covers. I think the aftermarket ones are a little wider and taller than the stockers. I got the next shorter belt and had to loosen the alternator mounts so I could tip it in to get the belt started and then tightened the wee out of the belt to get the alternator to just clear the valve covers. The belt eventually stretched a bit and it was ok. It is not real good on the bearings in the alternator though.

**john** · 02-08-2008, 04:17 AM

I have heard the 72 brackets are longer.

70GMCer · 02-08-2008, 05:26 AM

those 2 pics do look like the sweep is longer. The valve covers I have are not that tall. I bought this arm at GM last year. I found this on Ebay, and it looks like the adjustment slot is longer. It's supposed to be for a late 60's Corvette. Could one of you guys measure the slot opening length on the arm? I want to see for sure if mine is shorter before getting another one. Thanks.

Blazer1970 · 02-08-2008, 07:00 AM

Quote:

Originally Posted by john

I have heard the 72 brackets are longer.

Yes, this is true.

TotalChevy1 · 02-08-2008, 01:24 PM

Quote:

Originally Posted by 70GMCer

those 2 pics do look like the sweep is longer. The valve covers I have are not that tall. I bought this arm at GM last year. I found this on Ebay, and it looks like the adjustment slot is longer. It's supposed to be for a late 60's Corvette. Could one of you guys measure the slot opening length on the arm? I want to see for sure if mine is shorter before getting another one. Thanks.

The distance between the mounting bolt the the end of the slot is around 12 inches, which may only be about 1/2" longer, which would make a difference. My Alt. is pretty close to the valve cover

*LILRED66* · 02-08-2008, 02:17 PM

I had the same issue and moved the end of the bracket to the threaded hole in the intake manifold and not the head. This required a small spacer for correct belt alignment. Worked great and allow lots of adjustment.

BigSky71 · 02-09-2008, 01:04 AM

Quote:

Originally Posted by bdozeraz

I ran into the same problem on mine when I went to aftermarket valve covers. I think the aftermarket ones are a little wider and taller than the stockers. I got the next shorter belt and had to loosen the alternator mounts so I could tip it in to get the belt started and then tightened the wee out of the belt to get the alternator to just clear the valve covers. The belt eventually stretched a bit and it was ok. It is not real good on the bearings in the alternator though.

My experience exactly, I bought the next two shorter belts, figured out the one that worked and took the other back.

02-07-2008, 09:15 PM	#1
70GMCer Senior Member Join Date: Apr 2005 Location: Joppa, Maryland Posts: 4,408	Is this the right bracket? I can't get anymore adjustment out of the alt bracket, and I can't use a smaller belt due to the valve covers. Is the adjust arm in the right position? Attached Images __________________ 1997 GMC Sierra Ext 1965 Mustang

02-07-2008, 10:07 PM	#2
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Re: Is this the right bracket? Isn't there another bracket that looks just like that only it's a bit higher up to the arc and longer over the alternator? Other than that, it looks right to me (but, who am I...) __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew!

02-08-2008, 02:01 AM	#3
hyarbour Registered User Join Date: Jan 2007 Location: Fairview, ks Posts: 203	Re: Is this the right bracket? I had that problem with my old engine. On the new one I moved the alternator to the othe head.

02-08-2008, 02:30 AM	#4
70GMCer Senior Member Join Date: Apr 2005 Location: Joppa, Maryland Posts: 4,408	Re: Is this the right bracket? Moving to the other head is not an option. I know that the alt was original on the right side. All the pulleys align up perfect. I'm wondering if I don't have the adjustment arm in the right place on the head or is that the wrong arm I have? __________________ 1997 GMC Sierra Ext 1965 Mustang

02-08-2008, 02:30 AM	#5
TotalChevy1 Registered User Join Date: Mar 2007 Location: Phoenix, Arizona Posts: 175	Re: Is this the right bracket? That bracket looks a little small Here's a pic on mine not sure it will help Attached Images __________________ 1972 c-20, 350/350, dana 60 w/456 gears(no Posi)

02-08-2008, 03:11 AM	#6
bdozeraz Registered User Join Date: Jun 2007 Location: Phx, Az Posts: 51	Re: Is this the right bracket? I ran into the same problem on mine when I went to aftermarket valve covers. I think the aftermarket ones are a little wider and taller than the stockers. I got the next shorter belt and had to loosen the alternator mounts so I could tip it in to get the belt started and then tightened the wee out of the belt to get the alternator to just clear the valve covers. The belt eventually stretched a bit and it was ok. It is not real good on the bearings in the alternator though.

02-08-2008, 04:17 AM	#7
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	Re: Is this the right bracket? I have heard the 72 brackets are longer. Attached Images __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

02-08-2008, 05:26 AM	#8
70GMCer Senior Member Join Date: Apr 2005 Location: Joppa, Maryland Posts: 4,408	Re: Is this the right bracket? those 2 pics do look like the sweep is longer. The valve covers I have are not that tall. I bought this arm at GM last year. I found this on Ebay, and it looks like the adjustment slot is longer. It's supposed to be for a late 60's Corvette. Could one of you guys measure the slot opening length on the arm? I want to see for sure if mine is shorter before getting another one. Thanks. Attached Images __________________ 1997 GMC Sierra Ext 1965 Mustang Last edited by 70GMCer; 02-08-2008 at 05:28 AM.

02-08-2008, 02:17 PM	#11
LILRED66 Account Suspended Join Date: May 2005 Location: Kansas City, KS Posts: 3,906	Re: Is this the right bracket? I had the same issue and moved the end of the bracket to the threaded hole in the intake manifold and not the head. This required a small spacer for correct belt alignment. Worked great and allow lots of adjustment.



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