Serpentine Belt or Standard Configuration?

[BAT]

Awesome!! Thanks for all the input and the pics, much appreciated!

Happy New Year

[BAT]

Originally Posted by ray_mcavoy

You probably have a CS130D alternator. Those were commonly used on a lot of the newer engines with serpentine belts and they have an internal fan.

Nope, no internal fan here. Looks like I am off to Pull-A-Part this weekend. Then I'll powder coat all my pulleys and brackets while my son paints the block. If only I could convince him it needs to be Chevy Orange!!

[mightymouse]

now i got to thinking i said you could use the factory clutch type fan and iv,e seen were people have without issues , but i only had i think 3" between my water[ump pulley and the radiator and that,s 1 reason i went with an electric fan i don,t know if it was the motor mount,s that i'm using or what. but if you have enough clearance now the ac delete is,t going to change that . i was assuming that you already had the fan on the truck..

[BAT]

Actually when I bought it it had an electric fan setup (complete with toggle switch on the dash). I would think that the water pump pulley clearance would be in direct correlation to whether it is a long or short water pump. If I understand correctly a long water pump measures 7" from the block to the pulley. If that is correct, then I have a short water pump for mine measures around 5" IIRC correctly.

My next step was to pull the motor but now I'm thinking that before I do anything else I should probably mock up the new core support, shroud, fan and clutch before I make any more decisions/changes.

[68shortfleet]

Your A/C delete pulley/bracket that you need is available brand new on Rockauto.com for $22.89. Seems a bit less expensive that the EBAY one even after adding a bit for shipping.

It is made by Dorman, and is listed under the Heat & Air conditioning category and is called an A/C Compressor Bypass Pulley, part number 34152.

[ray_mcavoy]

Originally Posted by ray_mcavoy

You probably have a CS130D alternator. Those were commonly used on a lot of the newer engines with serpentine belts and they have an internal fan.

Originally Posted by BAT

Nope, no internal fan here. Looks like I am off to Pull-A-Part this weekend.

I think you're still okay with that alternator ... it sure looks like a CS130D alternator with internal fan to me.

^ I borrowed this pic of the Jegs website.

[BAT]

I'll take a closer look next time I'm at the shop but this one is a Delco and I swore I looked inside and only saw wire winding.

[ray_mcavoy]

Originally Posted by BAT

I'll take a closer look next time I'm at the shop but this one is a Delco and I swore I looked inside and only saw wire winding.

Yeah, the originals were made by Delco. That Powermaster copy from the Jegs site just happened to be one of the first pics I found to post for illustration purposes.

The fan (many of them actually have two) are deeper down inside than stator windings that are readily visible through the case openings.

Here is an exploded view:


And here is the CS130D rotor assembly (notice the fans on both the front & back of it)


I borrowed these pics from http://alternatorparts.com

[BAT]

Well now my curiosity is really peaked, never would have looked in from the back side. Sounds like my alternator may be just fine after all.

[jjzepplin]

Originally Posted by mightymouse

i went to the wrecking yard and pulled the bracket,s and pulley,s +powersteering pump off a 92 also got the passenger side bracket off a v-6 cause i liked it better cause it does,t have the smog pump provision all for less than a $ 100.00 had it all powdercoated for around $ 50.00 got ac delete pully from gm. as mentioned eariler youll need a reverse rotation water pump .it add,s up, but fit,s my budget

If you don't mind me asking..What is the part # of your belt?

[BAT]

See post #18

Originally Posted by mightymouse

no problem i also think that for the ac delete you need to run a different belt the correct gm # for that belt 10230729 as for the altenator i dont know i just got one for a 90 model 350 silverado.good luck and Happy- Newyear

[mightymouse]

hey Barry, is this the bracket you pmed me about . do you have this side or just the driver side

[BAT]

I have both of the brackets, I was talking about what appears to be a brace from the top of the manifold to teh back of the tentioner. this pic looks like there are 2 (#'s 20 & 21).

[mightymouse]

yes there is a brace , there was two of them on the setup that i got off the wrecking yard truck but i'm using just one of them here,s a pic of it if you can make it out, also i seen someone on the part,s board selling the serpentine conversion,s he may have the part,s you need

[68 TT]

What does the back of that A/C delete pulley look like? Does it use all three mounting points or only two? Hard to tell in the diagram & pics.

[68 TT]

Originally Posted by 68shortfleet

Your A/C delete pulley/bracket that you need is available brand new on Rockauto.com for $22.89. Seems a bit less expensive that the EBAY one even after adding a bit for shipping.

It is made by Dorman, and is listed under the Heat & Air conditioning category and is called an A/C Compressor Bypass Pulley, part number 34152.

My local Auto Zone sells the Dorman part for $32.99 and has them in stock.

[425HP409]

When you use the serpentine system with a reverse rotation water pump you must also use a reverse rotation fan to properly pull the air through the radiator if you don't use an electric fan.
Posted via Mobile Device

[BAT]

Originally Posted by 68 TT

What does the back of that A/C delete pulley look like? Does it use all three mounting points or only two? Hard to tell in the diagram & pics.

It has 2 holes and mounts horizontally in the condenser bracket.

[b.eddy's72]

Originally Posted by 72 K20

Fire dog
I didn't realize that the 4.3 serpentine setup would work on the small block,, any certain years or models to look for ?
Are you running AC and PS ? Would like to see some pics !! Are you running electric fans or conventional ?

Don't mean to hijack but feel this is directly related to the OP.

Thank you !!

The 4.3 is a 5.7 with #7 and #8 cut off. The rods, pistons, bearings, and all are the same. When we built my buddies 4.3 went bought a full set of .040 over 350 pistons because it was cheaper in a set of 8 than for a set of 6, rings too.

Back to the other topic...............I personaly prefer the serpentine setup. Izzz just easy. Only downside is if you blow a belt you loose everything.................

[mjh1965]

I was just about to ask the question and found all the answers on this thread . This forum is invaluable when building a 1965 C10