1967 power steering pump

[Donald O.]

??all wrench & while applying a brake force in pulley groove, torque by.

What kind of wrench should be used, or socket & ratchet?
What is the correct torque?
Should lock-tite BLUE be used on the pulley retaining nut?

Thanks,
Don

[Mike M.]

Re: 1967 power steering pump

allen wrench. insert it into the pump shaft. that being said, I simply use a 1/2" drive impact wrench to tighten the nut.loctite a good idea. mike

[Joe L.]

Re: 1967 power steering pump

allen wrench. insert it into the pump shaft. that being said, I simply use a 1/2" drive impact wrench to tighten the nut.loctite a good idea. mike

Mike-----

I'm not aware that these power steering pump shafts had provisions for an allen wrench. Have I missed something?

[Joe L.]

Re: 1967 power steering pump

In the AIM:
On UPC N40, Sheet A5,
under the “Mandatory Assembly Instructions”
Step 4
Use a ??all wrench & while applying a brake force in pulley groove, torque by.

What kind of wrench should be used, or socket & ratchet?
What is the correct torque?
Should lock-tite BLUE be used on the pulley retaining nut?

Thanks,
Don

Don------


Which pulley do you have? Is it a stamped steel or cast iron?

[Mike M.]

Re: 1967 power steering pump

Joe: u are correct, senility catching up with me. I was thinking of removing alternator pulleys. the impact wrench trick works though. regards, mike

[Donald O.]

Re: 1967 power steering pump

Don------


Which pulley do you have? Is it a stamped steel or cast iron?

[Joe L.]

Re: 1967 power steering pump

Joe,
Right now, neither.
I am trying to do the installation in my head first.
My right shoulder is so eff upped that I am faced with the option of either adding power steering or not driving the 67. I would rather add the p/s than just park it in the garage.
I’m going through my books and service manuals before I drop a g-note on the parts.

Which is is the correct pulley? I’m assuming it is the cast iron.

Don

Don------


What engine do you have?

[Donald O.]

Re: 1967 power steering pump

Don------


What engine do you have?

Joe,
Since the AIM only lists one pump with pulley for all engines.....

I have the 327 350hp, engine code HT

Don

[Joe L.]

Re: 1967 power steering pump

Joe,
Since the AIM only lists one pump with pulley for all engines.....

I have the 327 350hp, engine code HT

Don

Don------


That's too bad (at least as far as p/s pump pulley installation is concerned); that makes it tougher. The 300 hp engine uses a stamped steel pulley, GM #3770509 that has a center fitting with flats for installing a wrench to prevent rotation of the pulley when installing the nut. This is the installation described in the AIM. The 350 hp engines uses a cast iron pulley, GM #3834720, with no such flats. The AIM is silent on installation of that pulley. It's actually the same as the aforementioned except there's no designed-in means of holding the pulley. I install the pulley onto the pump by hand, pressing it on as far as possible. Then, I put the pulley in a vice and install the nut. The shaft will not turn since there is a key in the shaft and a keyway in the pulley. Then, install the special nut and torque to 60 lb/ft. The nut, GM #3824475 is a self-locking nut and no locking compound is required.

The pulley and nut are no longer available from GM but are available in the reproduction/aftermarket.

[Donald O.]

Re: 1967 power steering pump

Thanks Joe.

Is there a difference between the pulleys other than materials, like diameter, belt groove width?

Don

[Joe L.]

Re: 1967 power steering pump

Thanks Joe.

Is there a difference between the pulleys other than materials, like diameter, belt groove width?

Don

Don------


Big differences and the two are not interchangeable. The 3770509 is 5-3/4"; the 3834720 is 6-1/2". The off-sets are completely different. The 3770509 is a standard groove pulley; the 3834720 is a deep groove pulley. However, you can use the 3770509 for your application as long as you change ALL of the other pulleys, too.

[Donald O.]

Re: 1967 power steering pump

More questions
Which crankshaft pulley should I use or change to? And which belt?
Right now its a 327 350hp L79, no P/S, no AC, no P/B, no AIR
with a two groove pulley for the crankshaft and the water pump.

Don

[Joe L.]

Re: 1967 power steering pump

More questions
Which crankshaft pulley should I use or change to? And which belt?
Right now its a 327 350hp L79, no P/S, no AC, no P/B, no AIR
with a two groove pulley for the crankshaft and the water pump.

Don

Don------


You should have the correct crankshaft pulley now. It should be GM #3858533. As is, your crankshaft and waterpump pulleys should be connected by a captive belt. With the addition of power steering, this will be replaced by a belt which connects the crankshaft, waterpump, and power steering pump pulleys. This is a very simple addition. As a bonus, it eliminates a captive belt and replaces it with one that can be adjusted at the power steering pump.

The belt should be a 3/8 X 45".