Cat Whisker Posted March 19, 2020 Report Share Posted March 19, 2020 Hello all. I am looking to install the balancer/damper hub and timing sprocket on a 1952 230 Dodge engine. Pulling them off took some doing and told me no way could they be driven back on. Even with heat and dry ice, it's such a tight interference fit, the thrust bearing would be history. Searching here, I found that Dodgeb4ya (in 2018) had made a special crank bolt for pressing/pulling them back on. See: https://p15-d24.com/topic/47346-crank-pulley-install-question/ The thread size is 1-1/8/-14, which is not standard at all. I have a lathe and can cut one with some 1-1/4 round stock. Then I would have to make a nut for it or drill and tap it. I have not cleaned or magnafluxed the crank yet. My question is: Why can't I just drill into the end of the crank about 5/8 - 3/4 inch deep, tap it as 1/2-20, finish with a bottom tap and use a standard balance installer which I already have?? There is plenty of meat at that end of the crank as it is almost inside of the front journal. Many thanks in advance again. Sincerely Michele. Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted March 19, 2020 Report Share Posted March 19, 2020 If you can make a threaded stud in your lathe, why not make an adapter? 1-1/8" - 14 thread on the outside and 1/2" - 20 thread on the inside to accept your other tool. Then there's no risk of weakening the crank, or drilling into an oil passage. Quote Link to comment Share on other sites More sharing options...
Cat Whisker Posted March 19, 2020 Author Report Share Posted March 19, 2020 3 hours ago, Merle Coggins said: If you can make a threaded stud in your lathe, why not make an adapter? 1-1/8" - 14 thread on the outside and 1/2" - 20 thread on the inside to accept your other tool. Then there's no risk of weakening the crank, or drilling into an oil passage. That is a good idea and it lets me use my balancer installer which I like because of the big flat plate and thrust bearing. I wasn't too concerned about the crank as the oil passage goes towards the first rod journal but did wonder about the strength under the sprocket. Many thanks. Quote Link to comment Share on other sites More sharing options...
Conn47D24 Posted March 19, 2020 Report Share Posted March 19, 2020 There is a special tool from Miller but without one , I made something out of a spare crank bolt ( yes weird and rare thread size ). You can buy a bolt from Vintage Power Wagons and make a tool. Do NOT pound the damper onto the crank ! 2 Quote Link to comment Share on other sites More sharing options...
Cat Whisker Posted March 20, 2020 Author Report Share Posted March 20, 2020 4 hours ago, Conn47D24 said: There is a special tool from Miller but without one , I made something out of a spare crank bolt ( yes weird and rare thread size ). You can buy a bolt from Vintage Power Wagons and make a tool. Do NOT pound the damper onto the crank ! I went ahead and made a 1-1/8 -14 bolt today 4 inches long. I did find a nut that fits. Fastenal actually had a 1-1/8-14 nut. No bolts just the nut in a grade 8. I cut a washer today also so I should have all I need to push the sprocket and damper on. Many thanks Conn47d24 for the info. 2 Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted March 20, 2020 Report Share Posted March 20, 2020 That's the way to do it! Nice job.. Easy damper/ pulley installation the right way? Quote Link to comment Share on other sites More sharing options...
Cat Whisker Posted March 20, 2020 Author Report Share Posted March 20, 2020 46 minutes ago, Dodgeb4ya said: That's the way to do it! Nice job.. Easy damper/ pulley installation the right way? It was your posting Dodgeb4ya, that I found searching for a 1-1/8-14 bolt. Thanks to you, the idea is great and didn't take very long at all. 1 Quote Link to comment Share on other sites More sharing options...
greg g Posted March 21, 2020 Report Share Posted March 21, 2020 Ido not recall anything special when I did the 56engine in my build up. But it been 10 plus years. 1 Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted March 21, 2020 Report Share Posted March 21, 2020 I think most people pound the crank gear on...hard on the # 4 crank main bearing thrust flange? 1 Quote Link to comment Share on other sites More sharing options...
Sniper Posted March 21, 2020 Report Share Posted March 21, 2020 Might be a small market for these, I know I would like to have one. Though you might consider adding to flats on the end in case you need a wrench to unscrew it. 1 Quote Link to comment Share on other sites More sharing options...
desoto1939 Posted March 21, 2020 Report Share Posted March 21, 2020 1 hour ago, Sniper said: Might be a small market for these, I know I would like to have one. Though you might consider adding to flats on the end in case you need a wrench to unscrew it. Rich Hartung: Yes I know I would be interested if you decide to make some of these pullers. Desoto1939@aol.com 1 Quote Link to comment Share on other sites More sharing options...
Cat Whisker Posted March 26, 2020 Author Report Share Posted March 26, 2020 On 3/21/2020 at 11:30 AM, Sniper said: Might be a small market for these, I know I would like to have one. Though you might consider adding to flats on the end in case you need a wrench to unscrew it. I did cut a slot in the end just in case thanks to your idea... 1 Quote Link to comment Share on other sites More sharing options...
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