|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
11-15-2020, 07:57 PM | #1 |
Senior Member
Join Date: May 2017
Location: NY
Posts: 318
|
1936 radiator petcock
My radiator petcock has a slow drip.
Has anybody taken one apart to fix the problem. Is there a packing inside them. My valve moves to easy. It doesn’t feel like it’s a tight fit. Thanks, Blast |
11-15-2020, 08:35 PM | #2 |
Senior Member
Join Date: May 2010
Location: southeastern Michigan
Posts: 10,101
|
Re: 1936 radiator petcock
If it is an original one, there's no packing inside, just a tapered fit between the shank of the handle and the base. If it is leaking and turns too easily, the tension spring on the shank opposite the handle is likely broken and needs replacement. A thorough cleaning of the base and the shank plus a new tension spring should stop the leak unless there is corrosion damage in the base or on the shank.
|
Sponsored Links (Register now to hide all advertisements) |
|
11-15-2020, 08:40 PM | #3 |
Senior Member
Join Date: May 2010
Location: (Not far enough...) Outside of DC
Posts: 3,387
|
Re: 1936 radiator petcock
I'd advise caution if you are contemplating removing the petcock for inspection or service. They are brass and a gentle approach would be wise to prevent frustrating complications.
__________________
-Jeff H Have you thought about supporting the Early Ford V-8 Foundation Museum? |
11-15-2020, 08:48 PM | #4 |
Senior Member
Join Date: May 2010
Location: upstate SC
Posts: 2,963
|
Re: 1936 radiator petcock
I would suggest trying to remove the movable part WITH OUT removing the pet cock from the radiator, it will most likely not come off with out a fight and you could break it loose from the tank. I have used fine grit valve grinding materiel to clean the taper and then as said put on a new rear/tension spring
|
11-15-2020, 08:56 PM | #5 |
Senior Member
Join Date: May 2010
Location: (Not far enough...) Outside of DC
Posts: 3,387
|
Re: 1936 radiator petcock
Another note that I found out on my '35 and '36 which each had 1937 engine blocks. The cars have correct year radiators, with drains. But the later block also had drains.
Personally if I want the coolant out I'd probably go for removing a lower hose. Plan ahead for A LOT of fluid, like 5 gal., when you do get things flowing. One normal modern radiator drain pan will not get you through the whole job.
__________________
-Jeff H Have you thought about supporting the Early Ford V-8 Foundation Museum? |
11-15-2020, 11:32 PM | #6 |
Senior Member
Join Date: May 2017
Location: NY
Posts: 318
|
Re: 1936 radiator petcock
Sponsored Links (Register now to hide all advertisements)
Maybe epoxy or to the radiator shop. |
11-16-2020, 05:41 AM | #7 |
Junior Member
Join Date: Jul 2020
Location: france
Posts: 26
|
Re: 1936 radiator petcock
I had the same issueon my 37 radiator. wanted to replace the petcok and i broke it.
So i drilled a hole of 18mm in the radiator, and put in the hole a brass part I made. The internal of the part was threaded 1/4" NPT (like petcok). this part was soldered by radiator shop (didn't want to solder it myself...) |
11-16-2020, 09:06 AM | #8 |
Senior Member
Join Date: May 2017
Location: NY
Posts: 318
|
Re: 1936 radiator petcock
feufeu, thank you for the pictures. The brass adapter you made looks great.
I don’t know if anyone makes a brass fitting like the one you made but if the don't you should make a few and offer them on the forum. Even a little epoxy or sealer around it and press it in. I’ll bet it will work. Blast. |
11-16-2020, 12:00 PM | #9 |
Senior Member
Join Date: Oct 2016
Location: harpursville ny
Posts: 1,040
|
Re: 1936 radiator petcock
I imagine you could solder in a 1/4 npt brass coupling which if you wanted turned down just enough to leave a small flange.
|
11-16-2020, 11:31 PM | #10 |
Senior Member
Join Date: May 2017
Location: NY
Posts: 318
|
Re: 1936 radiator petcock
I’m terrible at soldering. I tried all day soldering that radiator.
I usually never surrender but today I did. Took it to a radiator repair shop. I hope to have it back soon. Thanks guys for all your responses. Blast. |
11-18-2020, 02:12 AM | #11 |
Junior Member
Join Date: Jul 2020
Location: france
Posts: 26
|
Re: 1936 radiator petcock
Yes it's very difficult to solder a radiator because the two boxes (top & bottom) are tin soldered, so if you heat too much the result will be leaks.
feufeu. |
11-18-2020, 03:26 PM | #12 |
Senior Member
Join Date: May 2010
Location: Florida and Penna.
Posts: 4,471
|
Re: 1936 radiator petcock
Look on Usbrassandcopper.com They have petcock valves
that look just like the original ones. G.M.
__________________
www.fordcollector.com |
11-19-2020, 02:10 PM | #13 |
Senior Member
Join Date: May 2010
Location: Charlotte NC KiWi-L100 available here
Posts: 2,963
|
Re: 1936 radiator petcock
Delete. Sorry
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|