The Ford Barn

Tom A400 · 11-24-2022, 03:59 PM

Hexagonal Box Wrench for Crankshaft Pulley Bolt (P/N 5-Z1900)

Will this tool work on a Model A crankshaft?Wrench.jpg
Wrench.jpg

Gary WA · 11-24-2022, 04:16 PM

1 3/8" ?

Tom A400 · 11-24-2022, 08:11 PM

Yes 1 3/8

mcgarrett · 11-24-2022, 08:19 PM

Yes, it's made for that specific purpose. Looks like you found an original tool, congratulations.

Pete W. · 11-24-2022, 10:52 PM

Your very lucky to find an original!
I've been looking for one for years with no luck. Everyone I talk with either knows exactly what I'm describing or have one that's not for sale.

katy · 11-25-2022, 10:18 AM

Sponsored Links (Register now to hide all advertisements)

The stock cranckshaft "ratchet" nut is 1-3/8", but that doesn't mean that's what you have, it could have been replaced w/a different size, maybe 1-5/16" or 1-1/4", or?

https://www.ebay.com/itm/18566513980...75.c101224.m-1

Ruth · 11-25-2022, 10:44 AM

Nice old original wrench but I think a 12 point would much more "usable" when turning over a engine. Space is tight.

CarlG · 11-25-2022, 02:32 PM

Bratton's has these:

Ruth · 11-25-2022, 03:02 PM

Here is a thread on Ratchet Nut Wrenches if anyone is interested. https://www.fordbarn.com/forum/showt...het+nut&page=2

Tom A400 · 11-25-2022, 03:53 PM

Thank you very much!

Bob Bidonde · 11-27-2022, 11:05 AM

I caution you to paint / tape the handle of your wrench a bright Dayglo color to remind you to remove it from the engine before starting the engine. Unfortunately, more than one Model A'er has forgotten to remove the wrench with some interesting results.
Another tip is for those who have a tool box between the frame horns. The box blocks the hand-crank hole, so the 1-3/8 offset wrench is a must have for turning the engine to time the ignition.

mcgarrett · 11-27-2022, 05:21 PM

Be sure to read & heed what Bob B. said in post #9.

Fortunately, the only thing that happened to me was I found the fastest way to loosen the crank pulley bolt with the engine still in the car!

5lugnuts · 11-28-2022, 05:24 PM

I bought a 1/2 inch drive 1 3/8 inch socket. Used an extension and rachet to get to it from the crank hole in the grill. Much easier than a wrench. Because it sticks out between the grill and bumper it is hard to forget to remove it. Although I probably could.

11-24-2022, 03:59 PM	#1
Tom A400 Junior Member Join Date: Jun 2022 Location: Cary, NC Posts: 19	Crankshaft Pulley Bolt (P/N 5-Z1900) Hexagonal Box Wrench for Crankshaft Pulley Bolt (P/N 5-Z1900) Will this tool work on a Model A crankshaft?Wrench.jpg Wrench.jpg

11-24-2022, 04:16 PM	#2
Gary WA Senior Member Join Date: May 2010 Location: Clinton,WA/Whidbey Island Posts: 4,105	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) 1 3/8" ? __________________ www.whidbeymodelaclub.com

11-24-2022, 08:11 PM	#3
Tom A400 Junior Member Join Date: Jun 2022 Location: Cary, NC Posts: 19	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) Yes 1 3/8

11-24-2022, 08:19 PM	#4
mcgarrett Senior Member Join Date: Dec 2013 Location: Waxahachie, Texas Posts: 949	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) Yes, it's made for that specific purpose. Looks like you found an original tool, congratulations.

11-24-2022, 10:52 PM	#5
Pete W. Member Join Date: May 2010 Posts: 55	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) Your very lucky to find an original! I've been looking for one for years with no luck. Everyone I talk with either knows exactly what I'm describing or have one that's not for sale.

11-25-2022, 10:18 AM	#6
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,046	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) Sponsored Links (Register now to hide all advertisements) The stock cranckshaft "ratchet" nut is 1-3/8", but that doesn't mean that's what you have, it could have been replaced w/a different size, maybe 1-5/16" or 1-1/4", or? https://www.ebay.com/itm/18566513980...75.c101224.m-1 __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! Last edited by katy; 11-25-2022 at 10:23 AM. Reason: Addition

11-25-2022, 10:44 AM	#7
Ruth Senior Member Join Date: May 2016 Location: Glide, Oregon Posts: 1,339	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) Nice old original wrench but I think a 12 point would much more "usable" when turning over a engine. Space is tight. __________________ Ruth "Sometimes you really DO need to read the whole thread"

11-25-2022, 03:02 PM	#9
Ruth Senior Member Join Date: May 2016 Location: Glide, Oregon Posts: 1,339	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) Here is a thread on Ratchet Nut Wrenches if anyone is interested. https://www.fordbarn.com/forum/showt...het+nut&page=2 __________________ Ruth "Sometimes you really DO need to read the whole thread"

11-25-2022, 03:53 PM	#10
Tom A400 Junior Member Join Date: Jun 2022 Location: Cary, NC Posts: 19	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) Thank you very much!

11-27-2022, 05:21 PM	#12
mcgarrett Senior Member Join Date: Dec 2013 Location: Waxahachie, Texas Posts: 949	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) Be sure to read & heed what Bob B. said in post #9. Fortunately, the only thing that happened to me was I found the fastest way to loosen the crank pulley bolt with the engine still in the car!

11-28-2022, 05:24 PM	#13
5lugnuts Senior Member Join Date: Aug 2015 Location: Clermont in Central Florida Posts: 111	Re: Crankshaft Pulley Bolt (P/N 5-Z1900) I bought a 1/2 inch drive 1 3/8 inch socket. Used an extension and rachet to get to it from the crank hole in the grill. Much easier than a wrench. Because it sticks out between the grill and bumper it is hard to forget to remove it. Although I probably could.