White Spyder Posted October 24, 2015 Report Posted October 24, 2015 At the risk of sounding incredibly stupid, how are you hand rolling your motor? I do not have a single bolt in the front of my balancer. Should it have on? Quote
Plymouthy Adams Posted October 24, 2015 Report Posted October 24, 2015 being the flathead..would say yes..the last 251 I had here was as are all my other engines of the flat 6 Mopars....slip your finger upside the end of the crank and I am sure you will find it to be threaded.. Quote
White Spyder Posted October 24, 2015 Author Report Posted October 24, 2015 Wow, that is a big bolt 3/4 or 7/8 ! Not one that I have in the bolt bin. Quote
Jeff Balazs Posted October 25, 2015 Report Posted October 25, 2015 Wow, that is a big bolt 3/4 or 7/8 ! Not one that I have in the bolt bin. I think it is larger than that isn't it? Maybe 1 1/8" thread? I know it takes the biggest socket I own ........ 'cause I bought it just for that beast. Jeff Quote
Bingster Posted October 25, 2015 Report Posted October 25, 2015 This is new to me. Hand roll the engine? Bolt? How does this work and why? Quote
Lloyd Posted October 25, 2015 Report Posted October 25, 2015 Might try and take out the spark plugs while turning over using the bolt. I had a new engine but it was really tight, helped a lot pulling the plugs. Quote
Dodgeb4ya Posted October 25, 2015 Report Posted October 25, 2015 (edited) Maximum diameter of the fine thread crank pulley bolt is 1.125" for the early chrysler flatheads. Edited October 25, 2015 by Dodgeb4ya 1 Quote
jcmiller Posted October 25, 2015 Report Posted October 25, 2015 You can also wrap a strong strap around the pulley and turn it that way. Quote
Dodgeb4ya Posted October 25, 2015 Report Posted October 25, 2015 I push down on the fan belt and pull on the fan from the drivers side. Works well except on new engines.. Quote
White Spyder Posted October 25, 2015 Author Report Posted October 25, 2015 Thanks, y'all always have the answers. Dodgeb4ya great photos. Quote
White Spyder Posted October 25, 2015 Author Report Posted October 25, 2015 Who would think it would be so hard to find a bolt to fit????? Quote
Jeff Balazs Posted October 25, 2015 Report Posted October 25, 2015 Who would think it would be so hard to find a bolt to fit????? I would. It is a special purpose item.......no way it is sitting on the shelf at a local hardware store. VPW has them. Jeff 1 Quote
White Spyder Posted November 11, 2015 Author Report Posted November 11, 2015 Update and plea! I contacted the AB and Vintage Power Wagon and found that neither stock the needed bolt. The folks at VPW did go out into their yard and pulled the only one they had from one of their parts cars. Unfortunately, it is the smaller of the two shown in an earlier post and my car needs the larger one. With the restricted space while the engine and radiator are in the car, I am finding it very difficult to do some of the suggested alternatives. ( fan and pulley are out) I would really like to get this done so I am asking for more suggestions and if anyone has one of the larger bolts they can part with to please let me know. With further need to work on the engine most likely in my future (replacing head gasket) havring the bolt in place with help make the project easier. Thanks in advance Quote
Roadkingcoupe Posted November 12, 2015 Report Posted November 12, 2015 (edited) I have the same nut on my motor and always thought that it was for an emergency hand crank. 1939 and 1941 Plymouth's are equipped with a removable crank hole cover, it looks like the crank hole cover when removed lines up with that nut on the end of the crankshaft. I thought the item pictured allowed the hand crank to turn over the motor when standing (or huffing and puffing) in front of the grill. Any thoughts? edited for spelling Edited November 12, 2015 by Roadkingcoupe Quote
casper50 Posted November 12, 2015 Report Posted November 12, 2015 yes you could hand crank it if you had the muscle. Quote
DonaldSmith Posted November 12, 2015 Report Posted November 12, 2015 My dad, who grew up in the '20's, would remind us that when hand-cranking a car, keep your thumb next to your fingers; don't wrap your thumb around the crank handle; pull up only; or the hand crank will break your thumb if the engine bucks backwards. Now, by the '40's, most cars did well enough with the electric starter system that the hand-crank provisions went by the wayside. My '47 has the space under the radiator and above the bottom of the bracket to insert a crank, but no wings on the crankshaft nut and no port in the grille. Quote
casper50 Posted November 12, 2015 Report Posted November 12, 2015 When stationed in Scotland in the late 70's I owned a car made in the mid 60's that could still be hand cranked. I think it was an Austin. Quote
White Spyder Posted November 12, 2015 Author Report Posted November 12, 2015 I am not sure but by the mid 40's the access to hand crank was eliminated. On my 48 there is none but the bolt pictured should work with a Large enough socket. Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.