michael.warshaw Posted January 25, 2010 Report Posted January 25, 2010 that is standard or 10,000 undersize?? or standard?
michael.warshaw Posted January 25, 2010 Author Report Posted January 25, 2010 i bought one, and my motor builder, said that it would have to be ground, 20 20,000 is it bad to drive around on a crank that has billed down to 20?
RobertKB Posted January 25, 2010 Report Posted January 25, 2010 Lots of cranks are ground 30/1000 with no problems. The crank in my '38 Chrysler was ground that much and that was done by a Chrysler approved rebuilder back in the '70's. So yes, 20/1000 is fine as long as it is standard to start with and has not been ground before.
michael.warshaw Posted January 25, 2010 Author Report Posted January 25, 2010 i hope your right, i am going to be going 75+ mph with my od tranny, so i want to have a strong crank?
Don Coatney Posted January 25, 2010 Report Posted January 25, 2010 I do not understand your math? If you are asking if a .020" journal undersize is extreme I must ask are you looking for a 200,000 mile engine? What are your plans for this car? Are you going to park the beemer and drive this P-15 full time year round? Or are you goning to drive this P-15 on sunny weekends in the summer only? I personally would not be uncomfortable with a .020" undersize journal But I know what I am doing and what I want.
RobertKB Posted January 25, 2010 Report Posted January 25, 2010 i hope your right, i am going to be going 75+ mph with my od tranny, so i want to have a strong crank? I know I am right but ask your engine builder if you need more proof. I am sure he will tell you 20/1000 is no problem. Just make sure your crank is standard to begin with and has not been reground previously.
Don Coatney Posted January 25, 2010 Report Posted January 25, 2010 i hope your right, i am going to be going 75+ mph with my od tranny, so i want to have a strong crank? Hold on a minute. What does 75 MPH and a strong crankshaft have in common? The answer is engine RPM's. With your overdrive transmission exactly what RPM's will your engine be spinning at 75 MPH? I did the math and calculated my engine RPM's long before I elected to install my overdrive transmission. Seems like you are shotgunning into unknown territory.
dezeldoc Posted January 25, 2010 Report Posted January 25, 2010 20/20 is fine michael, heck 30/30 isn't any problem either.
michael.warshaw Posted January 25, 2010 Author Report Posted January 25, 2010 plain and simple if the crank is ground to 20, is that bad? i am planning on driving the car in the summer alot, but is a crank ground to 20, is it better to just find one that is standard and nos?
Plymouthy Adams Posted January 25, 2010 Report Posted January 25, 2010 are you drag racing and is the journal going to be properly radiused? that is all..!
Niel Hoback Posted January 25, 2010 Report Posted January 25, 2010 Just curious, whats the speed limit in NY?
55 Fargo Posted January 25, 2010 Report Posted January 25, 2010 Analysis Paralysis, if we keep asking the same ??? when the answer stares us in the face. Michael, you are going to drive yourself crazy before this car is on the road, there is good direction on here, heed the advice, tackle 1 area at a time. After a while you are either going to be an expert on P15s, or will drive yourself crazy, you should go and buy another P15, a driver, use it and see what there like, and keep working on your current, then when it is finished sell the driver.
Lou Earle Posted January 26, 2010 Report Posted January 26, 2010 take a look at this engien on e bay- sure looks like a 230- small fanbelt and newer style water neck- get the guy to give you serial numbers- you canthen tell or someone here can - presto crank rods etc - heck it moight even be a great eingine- I bought a 400 buck 48 plym and it ended up having a newly rebuilt motor- might be your answer http://cgi.ebay.com/ebaymotors/1948-Plymouth-engine-and-transmission_W0QQitemZ170437109195QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item27aed7e5cb Lou Earle
Captain Neon Posted January 26, 2010 Report Posted January 26, 2010 55 mph Having driven the NY Tollway a time or two to Albany, I can attest that yes, 55 mph is the speed limit in NY. Very annoying when I am used to going 70 mph in Minnesota and even 80 mph is TX. However, I learned a long time ago, the speed limit is irrelevant if every one else is driving at a different speed. If the speed limit is 55 mph, and the speed of traffic is 75 mph at 55 mph one is a road hazard. Don't know if it is true, but I have often been told an urban myth about an older gentleman driving in Minneapolis on I-35W being pulled over by a MN State Trooper and given a verbal warning to speed up with the flow of traffic despite traveling at the posted speed limit. On the other hand, I know folks that have been ticketed for driving 55 mph in a 60 mph zone in weather conditions that in his own hunting ground 60 mph is a reasonable speed, but still ticketed for driving at an unsafe and unreasonable speed simply because no one else was traveling that fast.
james curl Posted January 26, 2010 Report Posted January 26, 2010 Michael, if you do not own a set of feeler gauges stop at any auto parts store and buy a set. Then open the .020 feeler out and feel the thickness, this is what your machinist will be taking off of the journals all around the circumference. .020 really is not too much.
Plymouthy Adams Posted January 26, 2010 Report Posted January 26, 2010 and if you have no dang tools at all..that is approx 5 sheets of printer paper..
dezeldoc Posted January 26, 2010 Report Posted January 26, 2010 Don't forget either that is really only 10 coming off each side!
michael.warshaw Posted January 26, 2010 Author Report Posted January 26, 2010 so it sounds like i wont have a problem at 20 off, because i was going to buy a nos crank from vpw or find a used one that is standard? The info i get here is its cool. the guy at vpw said 30 is to much.
steveplym Posted January 26, 2010 Report Posted January 26, 2010 The guys at VPW told me the same thing. I was looking at .030 on the main journals and .040 on the rod journals. They told me that it would chew up the bearings and spit them out, plus the bearings were going to be very expensive. I ended up getting another driveshaft that was standard. Got lucky there. I would think that .020 shouldn't be a problem. Bearings in that size are readily available if I remember correctly. Call Terrill Machine in Texas, they are very knowledgeable and helpful as well. 254-893-2610
michael.warshaw Posted January 26, 2010 Author Report Posted January 26, 2010 doesa anyone have a s standard 230 crank for sale?
michael.warshaw Posted January 26, 2010 Author Report Posted January 26, 2010 take a look at this engien on e bay- sure looks like a 230- small fanbelt and newer style water neck- get the guy to give you serial numbers- you canthen tell or someone here can - presto crank rods etc - heck it moight even be a great eingine- I bought a 400 buck 48 plym and it ended up having a newly rebuilt motor- might be your answerhttp://cgi.ebay.com/ebaymotors/1948-Plymouth-engine-and-transmission_W0QQitemZ170437109195QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item27aed7e5cb Lou Earle that motor is a 218 i would say since its out of a 48 its not a 230 right?
Young Ed Posted January 26, 2010 Report Posted January 26, 2010 Just because it came out a 48 doesnt mean its a 48 motor. I agree with Lou it looks newer.
michael.warshaw Posted January 26, 2010 Author Report Posted January 26, 2010 does the tranny look like od?
blueskies Posted January 26, 2010 Report Posted January 26, 2010 does the tranny look like od? Looks like a standard three speed transmission. Pete
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