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-   -   250 Power Steering Pulley Help (https://67-72chevytrucks.com/vboard/showthread.php?t=828167)

maverickmk 11-26-2021 10:11 PM

250 Power Steering Pulley Help
 
I have been slowly cobbling parts together to add power steering to my 1969 GMC with a 250 cid. I thought I had found the correct pulley, but after installing it, it is off about 1/2" - 3/4". The PN on the pulley I have is 354324AB.

I'm hoping someone smarter than me will chime in and tell me I need ****** pulley and you can get it at (insert web site here) ;)

Any help is greatly appreciated.

https://i.imgur.com/Cgydklh.jpg

https://i.imgur.com/uJC3cPJ.jpg

Palf70Step 11-26-2021 10:30 PM

Re: 250 Power Steering Pulley Help
 
2 Attachment(s)
Looks like that is for the later model 250s. There is a bigger space on the crank pulley between 1st and 2nd pulley groove compared to the earlier ones. This is what mine looks like before I hooked all the accessories to engine (77 era block).

I currently have custom aftermarket brackets on mine, but your power steering bracket looks like it is for the later model integrated head which would push it out like that too. Hard to tell since I no longer have factory accessory brackets.

NOTE: 2nd picture is mine when stock, the steering pulley went to the 3rd, crank pulley, AC was 2nd and alt was first pulley.

roboticjunky 11-26-2021 10:36 PM

Re: 250 Power Steering Pulley Help
 
Check these 2 pulleys from Rockauto. One is a double pulley and the other is a set back pulley, supposedly for a I6.

https://www.rockauto.com/en/moreinfo...t=7381&jsn=603

https://www.rockauto.com/en/moreinfo...t=7381&jsn=605

Jason Banks 11-26-2021 11:26 PM

Re: 250 Power Steering Pulley Help
 
Those Lares pulleys look like they will work.

Here's where I had the same problem.

Start at Post 20 - http://67-72chevytrucks.com/vboard/s....php?p=7972779

I show what pulley I ordered on post 29 - http://67-72chevytrucks.com/vboard/s...9&postcount=29

roboticjunky 11-26-2021 11:37 PM

Re: 250 Power Steering Pulley Help
 
The Lares 165 pulley also states it's the same as GM # 3834720.

BigBird05 11-27-2021 08:52 AM

Re: 250 Power Steering Pulley Help
 
Are you sure you have the right pump? I thought our models used the bolt on pulleys? Your picture shows you using a press on tool?

maverickmk 11-28-2021 05:12 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by Jason Banks (Post 9000206)
Those Lares pulleys look like they will work.

Here's where I had the same problem.

Start at Post 20 - http://67-72chevytrucks.com/vboard/s....php?p=7972779

I show what pulley I ordered on post 29 - http://67-72chevytrucks.com/vboard/s...9&postcount=29

Is the pulley that worked for you a bolt on style or press on?

Jason Banks 11-28-2021 06:10 PM

Re: 250 Power Steering Pulley Help
 
It is a bolt on.

I have another complete set of brackets that has a pump with press on pulley(same PN 354324AB as yours). I have never had it on an engine so I don't know if it lines up.

I also have another press on DOUBLE pulley, that when I hold it up to the single like yours, seems like it would put the 2nd groove a full groove closer to the engine. Not sure PN. I think I got it in a batch off this message board, but can't find where.

My working setup is double groove alternator with PS belt on outer groove.

Jason Banks 11-28-2021 07:14 PM

Re: 250 Power Steering Pulley Help
 
I was looking at your pictures and it appears you are using the brackets like shown in the middle row of my post

http://67-72chevytrucks.com/gallery/...ackets-250.jpg

Middle Left - 354527
Middle Right - 355789

My pump that has the pressed on pulley like your also has those same brackets. On my setup with the bolt on pulley it uses the ones from the top row. That may be the difference in those brackets.

Are you sure you have the pulley pressed on all the way? Those pictures you saved from 1968C30 (https://67-72chevytrucks.com/vboard/...d.php?t=825218) look like the pulley is pressed on more.

Jason Banks 11-28-2021 07:58 PM

Re: 250 Power Steering Pulley Help
 
If you look at bonestock3ott's pictures closer it appears he's got the pulleys with the gap in the middle he's using with his pressed on pulley.

https://67-72chevytrucks.com/vboard/...1&d=1630191341

Example image from another thread:

http://67-72chevytrucks.com/gallery/...g_swap_030.jpg

maverickmk 11-30-2021 10:57 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by Jason Banks (Post 9000860)
If you look at bonestock3ott's pictures closer it appears he's got the pulleys with the gap in the middle he's using with his pressed on pulley.

Example image from another thread:

http://67-72chevytrucks.com/gallery/...g_swap_030.jpg

The pulleys on my motor do not have the gap between the two grooves like the picture above.

maverickmk 11-30-2021 10:59 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by Jason Banks (Post 9000844)
I was looking at your pictures and it appears you are using the brackets like shown in the middle row of my post

http://67-72chevytrucks.com/gallery/...ackets-250.jpg

Middle Left - 354527
Middle Right - 355789

My pump that has the pressed on pulley like your also has those same brackets. On my setup with the bolt on pulley it uses the ones from the top row. That may be the difference in those brackets.

Are you sure you have the pulley pressed on all the way? Those pictures you saved from 1968C30 (https://67-72chevytrucks.com/vboard/...d.php?t=825218) look like the pulley is pressed on more.

I put the pulley so far on the pump that I almost damaged the shaft, so, yes, it was on all the way - and then some :)
It appears that I have the bracket on the top left and the adjuster bracket middle right.

LockDoc 12-01-2021 10:44 AM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by maverickmk (Post 9000185)
I have been slowly cobbling parts together to add power steering to my 1969 GMC with a 250 cid. I thought I had found the correct pulley, but after installing it, it is off about 1/2" - 3/4". The PN on the pulley I have is 354324AB.

I'm hoping someone smarter than me will chime in and tell me I need ****** pulley and you can get it at (insert web site here) ;)

Any help is greatly appreciated.


It looks like you have the long snout pump on yours. When I put the PS setup on my '67 I6 I ended up using the short snout pump & everything lined up OK.

LockDoc

Jason Banks 12-01-2021 11:19 AM

Re: 250 Power Steering Pulley Help
 
Looking at your picture above, it looks like you have the middle left bracket, not the first row left bracket.

My guess is, without having the balancer and the water pump pulley that have the gap in the middle, it won't line up.

Things you could try:
Double press on pulley(not sure which one)
Pump with bolt on pulley(not sure which one)

edit: I was working on my response when lockdoc replied. Locdoc have you got part numbers or vehicles that use the different types?

70STOVEBOLT 12-01-2021 05:27 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by LockDoc (Post 9001960)
It looks like you have the long snout pump on yours. When I put the PS setup on my '67 I6 I ended up using the short snout pump & everything lined up OK.

LockDoc

This is what I did as well. Replaced the pump with a bolt-on pulley type and reused the later reservoir and everything lined up. Also used the double-groove alternator pulley like mentioned earlier.

72BBGMC 12-01-2021 06:29 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by LockDoc (Post 9001960)
It looks like you have the long snout pump on yours. When I put the PS setup on my '67 I6 I ended up using the short snout pump & everything lined up OK.

LockDoc

Can you give some details on what is a long snout VS a short snout pump? I've never heard of this before. Thanks

LockDoc 12-01-2021 09:29 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by Jason Banks (Post 9001973)
edit: I was working on my response when lockdoc replied. Locdoc have you got part numbers or vehicles that use the different types?

No part numbers. I just had a few different used pumps on hand.

Quote:

Originally Posted by 72BBGMC (Post 9002087)
Can you give some details on what is a long snout VS a short snout pump? I've never heard of this before. Thanks

It would be the distance from the face of the pump to the back of the pulley. I sold the truck. I will have to see what I have left for pumps in the morning.

LockDoc

Jason Banks 12-02-2021 02:15 PM

Re: 250 Power Steering Pulley Help
 
I've been looking at power steering pumps online and can't find anything referencing different lengths of snout on the pump housings.

I'm convinced that the pumps with the press on pulleys were designed to line up with the different balancer and water pump pulleys that have the gap in the middle. I did a quick look on ebay and the balancers are available, but didn't see any of the water pump pulleys. Seemed like it was easily gonna cost a couple hundred dollars to go that way.

I'd try a 2 groove press on pulley like this:
https://www.amazon.com/Dorman-300-12.../dp/B000E321ZU

That's the cheapest I could find it. Also known as GM PN 14084343 if you want to look. Thought it might be better to pay more and buy locally so you could return it, if it didn't work.

maverickmk 12-02-2021 03:35 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by Jason Banks (Post 9002514)
I've been looking at power steering pumps online and can't find anything referencing different lengths of snout on the pump housings.

I'm convinced that the pumps with the press on pulleys were designed to line up with the different balancer and water pump pulleys that have the gap in the middle. I did a quick look on ebay and the balancers are available, but didn't see any of the water pump pulleys. Seemed like it was easily gonna cost a couple hundred dollars to go that way.

I'd try a 2 groove press on pulley like this:
https://www.amazon.com/Dorman-300-12.../dp/B000E321ZU

That's the cheapest I could find it. Also known as GM PN 14084343 if you want to look. Thought it might be better to pay more and buy locally so you could return it, if it didn't work.

It's worth a shot, thanks.

Jason Banks 12-02-2021 03:51 PM

Re: 250 Power Steering Pulley Help
 
Send me your address and I'll send you this double press on that I have. It's kind of beat up, but would let you know if it works...

Jason Banks 12-02-2021 03:56 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by maverickmk (Post 9002533)
It's worth a shot, thanks.

I just went and got it and realized it does have a part number 354325 - there are many for sale on ebay if you want to see what it looks like.

I'll send you this one though. It looks like someone used pliers to try to get it off the pump, that's where it's chewed up.

maverickmk 12-02-2021 05:10 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by Jason Banks (Post 9002540)
Send me your address and I'll send you this double press on that I have. It's kind of beat up, but would let you know if it works...

PM sent.

Jason Banks 12-02-2021 06:19 PM

Re: 250 Power Steering Pulley Help
 
I guess I wasn't explaining why I think the double pulley will work. I also have a single pulley like yours and the outer groove on this pulley lines up with the groove on it and the 2nd groove is closer to the engine.

maverickmk 12-12-2021 06:18 PM

Re: 250 Power Steering Pulley Help
 
Quote:

Originally Posted by Jason Banks (Post 9002541)
I just went and got it and realized it does have a part number 354325 - there are many for sale on ebay if you want to see what it looks like.

I'll send you this one though. It looks like someone used pliers to try to get it off the pump, that's where it's chewed up.

The double pulley worked! Thank you for the help, I really appreciate it.
I had to put a double pulley on the alternator, which fortunately I already had, and the outer groove sticks out farther than any other groove on my motor, but it works and that's all I was looking for.

https://i.imgur.com/fFHRmka.jpg

https://i.imgur.com/joWvldO.jpg


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