AC Delco alternator install on 3MB engine

[KevinNY]

is that a Scout/Bronco Pump?

Nope, LR pump and box. My chassis is a coil conversion so the Scout setup doesn't work, coil mounts and pan hard braket would be in the way.

[TJR]

Here is a Delco 10SI mounted using the Pangolin brackets. The alternator I ended up using was a completely new unit (not rebuilt) from NAPA. IIRC, it came with a lifetime warranty:

The high mount alternator as show above is double belt for the military specs, but the std series models are a single belt.

Has anyone had issue w/ the low wrap angle on the waterpump pulley? any fan slippage squeals,,,etc? THX.. Talbot

[junkyddog11]

Yes it is. In fact I still have the pump and bracket if someone were to want to do a PS conversion. It requires the double pulley fan.

KB i may be interested. I'm in the middle of doing the same thing again other than this one has leafs and the P38 box....again. Seems to be a run on power steering lately.

The alternator bracket on your conversion was actually a modified Pangolin. I built one that used the front part of the double pulley. Ikes uses the rear or standard part of the pulley. I definately use Ikes when doing the regular Delco conversion as running the alternator up high is by far the best place for it.

[jac04]

Has anyone had issue w/ the low wrap angle on the waterpump pulley? any fan slippage squeals,,,etc? THX.. Talbot

Yes. It is difficult to find 2 belts that are exactly the same. Originally I had two belts that were different enough so that one was fairly loose when the other was tensioned properly. So, I decided to run one belt. The belt would always give a little squeal when I would blip the throttle. The belt tension needed to be quite high (too high IMO) to keep it from slipping.

I then went to the parts store and bought a half a dozen belts. I was able to find a matching set that were at about the same tension. I'm now back to the double belt set-up and I no longer get any belt squeal and the belts are not overly tensioned.

FYI: With the single belt, the onlt time I would get a little squeal was when blipping the throttle in neutral. Normal driving did not result in any squal or slippage. Keep in mind that I am using the 8-blade military fan, which is quite a bit heavier than the civvy 4-blade fan, so you may not have any issues.