1938 ford standard 60 hp motor
 

I would like to know if the petcocks on either side of the motor for coolant drain is a right hand or a left hand thread. Doing a head gasket replacement and I need to drain the motor. Or should I leave well enough alone and pull the lower hoses on the radiator. please advise Thank you

Re: 1938 ford standard 60 hp motor
 

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Those should be a normal, right-hand, tapered pipe thread. DD

Re: 1938 ford standard 60 hp motor
 

Right hand.

Re: 1938 ford standard 60 hp motor
 

If all you intend doing is new head gaskets, just remove the radiator cap and open the drain cock on the radiator. It won’t stain your driveway if you have your garden hose running while doing so.

Re: 1938 ford standard 60 hp motor
 

There is no drain cock on the radiator ford38v8. there is only two petcocks under the heads toward the front of the motor. Thank you for your reply

Re: 1938 ford standard 60 hp motor
 

Twrench-70, the petcocks are under the engine, near the front. Not under the heads. LOL. (Don't you hate a 90-year-old smart ass? LOL)

Re: 1938 ford standard 60 hp motor
 

Why take the peacocks out? Just open them up and drain the motor. That's all I did when I changed the head gaskets. Never removed the entire pepcock.

Re: 1938 ford standard 60 hp motor
 

I don't want to take them out I just want to know they rotate???/ Right hand thread or left hand thread to open them up. thank you

Re: 1938 ford standard 60 hp motor
 

Most automotive petcocks that I've ever opened turn CCW (counter-clockwise) to OPEN. DD

Re: 1938 ford standard 60 hp motor
 

Yes turn the same way as to remove them. That way when you tighten to close, they tighten in the threaded bung also..... Mark

Re: 1938 ford standard 60 hp motor
 

They are probably left-handed valves. They do open by turning counter-clockwise, but do so by screwing the stem off of the seat inward. I've fooled with lots of them.

Al Hook

Re: 1938 ford standard 60 hp motor
 

They will turn either way to open to close. This ain't rocket science.

Re: 1938 ford standard 60 hp motor
 

That answer sounds like some obfuscatory BS that a wanna-be attorney might throw-out in a case that ain't goin' so good! DD

Re: 1938 ford standard 60 hp motor
 

That's what I was thinking. I think they have a through hole in the stem so no matter which way they turn they open and close.

Re: 1938 ford standard 60 hp motor
 

Guys....Here's one OPEN, and another one CLOSED. On the CLOSED petcock, notice the "left-handed" thread on the TWISTY thing. As you turn it CCW (counter-clockwise), it OPENS! DD


https://th.bing.com/th/id/OIP.OPmZpm...r=1.25&pid=1.7


https://th.bing.com/th/id/R91e78b961...sl=&pid=ImgRaw

Re: 1938 ford standard 60 hp motor
 

The petcocks that turn either way to either open & close are on the bottom of the 38 radiator. The thru hole stem and its bore are tapered like a lab burette Jack E/NJ




https://www.fordbarn.com/forum/attac...1&d=1615067396

Re: 1938 ford standard 60 hp motor
 

He's already said there is NO petcock on the radiator. Only the two toward front of block. DD

Re: 1938 ford standard 60 hp motor
 

On my 38 there is. The very bottom underside of the radiator as I think Lawson was trying to point out. Plus 2 pipe plugs on each side of the block. Jack E/NJ

Re: 1938 ford standard 60 hp motor
 

Sounds like some spurious parts have been installed. Original Ford petcocks were solid brass and could be turned in either direction to open. If you have modern junk wingnut draincocks then that is the problem.