Delco 10si mounting bracket dimensions/diagram?

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Grandfatherjim
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Delco 10si mounting bracket dimensions/diagram?

Postby Grandfatherjim » Thu Mar 23, 2023 8:04 am

Hi,
I'm switching my 49 to a 12v Delco 10si, and can make up a bracket if someone could provide the dimensions.
From holding it in place and eyeballing it, it appears that the alternator will have to sit pretty tight to the upper rad hose, in order to fit under the hood.
My concern is that if I go ahead and make something up without getting input, I'll get it really close and then have to do it a second time.
That ever happen to anyone?
Thanks

Eugene
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Re: Delco 10si mounting bracket dimensions/diagram?

Postby Eugene » Thu Mar 23, 2023 8:21 am

Grandfatherjim wrote:I'll get it really close and then have to do it a second time. That ever happen to anyone?
Yes, took me two times to get the bracket right.

I made them out of on hand scrap strap steel. No big loss when the first one wasn't correct.

Search this site. I think there are posts with the dimensions for the bracket.

Edit for spelling.
Last edited by Eugene on Thu Mar 23, 2023 10:18 am, edited 1 time in total.
I have an excuse. CRS.

Workinprogress
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Re: Delco 10si mounting bracket dimensions/diagram?

Postby Workinprogress » Thu Mar 23, 2023 9:05 am

Here are a few photos of mine.

I started by making the base plate.

0619E7C5-3D3D-4C13-BD74-EDA7FAA5B953.jpeg
0619E7C5-3D3D-4C13-BD74-EDA7FAA5B953.jpeg (20.56 KiB) Viewed 197 times


I then used a piece of angle steel to make a bracket. I clamped the bracket in place to get alignment correct.

22894BC8-A6FB-4C14-8A99-F8D280481920.jpeg
22894BC8-A6FB-4C14-8A99-F8D280481920.jpeg (24.57 KiB) Viewed 197 times


Once alignment correct I removed bracket and welded it up. I also welded on a second plate to hold the alternator.

BDA4E676-0ECD-4C57-8CAD-3227FD17BDB3.jpeg
BDA4E676-0ECD-4C57-8CAD-3227FD17BDB3.jpeg (24.28 KiB) Viewed 197 times


I then made an adjustment arm. Instead of a fancy bending of the metal I just made angled cuts and welding things together.

93E6A897-5429-400F-AF1C-FBEBCF4C6CA2.jpeg
93E6A897-5429-400F-AF1C-FBEBCF4C6CA2.jpeg (30.62 KiB) Viewed 197 times


While the alternator cleared the hood with the factory belt I did replace it with one size shorter to give more hood clearance.
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Matt Kirsch
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Re: Delco 10si mounting bracket dimensions/diagram?

Postby Matt Kirsch » Thu Mar 23, 2023 9:33 am

I'm thinking the only ones that have dimensions are the ones that produce the brackets for sale. Everyone else has had to figure it out for themselves.

Grandfatherjim
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Re: Delco 10si mounting bracket dimensions/diagram?

Postby Grandfatherjim » Thu Mar 23, 2023 12:05 pm

Workinprogress wrote:Here are a few photos of mine.

I started by making the base plate.

0619E7C5-3D3D-4C13-BD74-EDA7FAA5B953.jpeg

I then used a piece of angle steel to make a bracket. I clamped the bracket in place to get alignment correct.

22894BC8-A6FB-4C14-8A99-F8D280481920.jpeg

Once alignment correct I removed bracket and welded it up. I also welded on a second plate to hold the alternator.

BDA4E676-0ECD-4C57-8CAD-3227FD17BDB3.jpeg

I then made an adjustment arm. Instead of a fancy bending of the metal I just made angled cuts and welding things together.

93E6A897-5429-400F-AF1C-FBEBCF4C6CA2.jpeg

While the alternator cleared the hood with the factory belt I did replace it with one size shorter to give more hood clearance.


This is very helpful; thank you.
Once I get something together that works I'll post dimensions and drawings in case it helps other home-brewers.
I wouldn't mind buying a pre-made kit but I'm in a hurry, and I'm in Canada, so would rather make it than wait, and deal with cross-border issues/costs.

DBIZZELL
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Re: Delco 10si mounting bracket dimensions/diagram?

Postby DBIZZELL » Fri Mar 24, 2023 7:01 am

I cut the back ear off the original bracket and lined it up with front bracket with a bolt and welded it to old bracket, the top adjustment bracket worked with out changing it.
Thanks


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