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Stuck .500"dowel pin in engine for trans bell help! #2776147
05/19/20 02:21 PM
05/19/20 02:21 PM
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northern,Ohio,USA
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Clanton Offline OP
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I need to get the dowel pins out for the offset pins .014" to locate the trans bell.I have an iron Koleno block.I tries vise grips to turn and pull with no luck.I guess heat around the pin would be my next try with a small can propane and after that grind flats in the dowel to grab with a wrench.


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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2776157
05/19/20 03:23 PM
05/19/20 03:23 PM
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tennessee,usa
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I had to pull the factory ones out of the hemi block that I had built when I got ready to index the bellhousing, so I could replace them with the offset dowels. I tried vise grips without any luck. I finally drilled them and tapped the center with like a 1/4 20 thread and screwed a bolt in each and pulled them out with a slide hammer.
Matt

Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2776172
05/19/20 03:56 PM
05/19/20 03:56 PM
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Oregon
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AndyF Offline
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Dowel pin puller is best tool for the job. If you don't have a dowel pin puller then you'll have to improvise.

Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2776173
05/19/20 04:02 PM
05/19/20 04:02 PM
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Andrews,In. U.S.of A.
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Drill and tap it, then run a long enough bolt into the bottom of the hole and it will pull it out.

Re: Stuck .500"dowel pin in engine for trans bell help! [Re: mattsmopars] #2776174
05/19/20 04:04 PM
05/19/20 04:04 PM
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Clanton Offline OP
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I was thinking of drilling the center now in case I mess up the dowel in some way and can't find center later.The thing about this is you spread the metal putting in the bolt against the block.Thank you for the info.
Originally Posted by mattsmopars
I had to pull the factory ones out of the hemi block that I had built when I got ready to index the bellhousing, so I could replace them with the offset dowels. I tried vise grips without any luck. I finally drilled them and tapped the center with like a 1/4 20 thread and screwed a bolt in each and pulled them out with a slide hammer.
Matt


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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2776196
05/19/20 05:04 PM
05/19/20 05:04 PM
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Big Sky Country
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Drill a 3/8 hole in the dowel, fill the hole nearly full with grease, then take a grade 5 bolt with the threads cut off, start the 3/8
bolt in the hole then hit the bolt with a 3 or 4lb hammer, the grease will push the dowel out, same thing works for
removing a pilot bushing except there is no hole to drill.

Re: Stuck .500"dowel pin in engine for trans bell help! [Re: MO_PA] #2776209
05/19/20 05:41 PM
05/19/20 05:41 PM
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in a cattle trailer down by th...
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Originally Posted by MO_PA
Drill a 3/8 hole in the dowel, fill the hole nearly full with grease, then take a grade 5 bolt with the threads cut off, start the 3/8
bolt in the hole then hit the bolt with a 3 or 4lb hammer, the grease will push the dowel out, same thing works for
removing a pilot bushing except there is no hole to drill.

I've done this before and does work. Alternatively you could drill the front of the block where the dowel pin is and use a drift punch to tap it out. Might be worthwhile to do that anyway as the alignment dowels are rarely clocked at the right spot the first time anyway.


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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Guitar Jones] #2776217
05/19/20 05:56 PM
05/19/20 05:56 PM
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Clanton Offline OP
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This is an interesting idea ty!I need some better drill bits.The cobalt coated did noth
Originally Posted by Guitar Jones
Originally Posted by MO_PA
Drill a 3/8 hole in the dowel, fill the hole nearly full with grease, then take a grade 5 bolt with the threads cut off, start the 3/8
bolt in the hole then hit the bolt with a 3 or 4lb hammer, the grease will push the dowel out, same thing works for
removing a pilot bushing except there is no hole to drill.

I've done this before and does work. Alternatively you could drill the front of the block where the dowel pin is and use a drift punch to tap it out. Might be worthwhile to do that anyway as the alignment dowels are rarely clocked at the right spot the first time anyway.


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http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2776224
05/19/20 06:18 PM
05/19/20 06:18 PM
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Idaho
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LaRoy Engines Offline
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Before I install an offset dowel I always drill and tap the dowel through the center of the of the dowel's block side. I can then use a push bolt to get the dowel out easily to re-position it.

Re: Stuck .500"dowel pin in engine for trans bell help! [Re: LaRoy Engines] #2776225
05/19/20 06:22 PM
05/19/20 06:22 PM
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Clanton Offline OP
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This will only work on the ps of the engine.The ds has the cylinder bore behind it.
Originally Posted by LaRoy Engines
Before I install an offset dowel I always drill and tap the dowel through the center of the of the dowel's block side. I can then use a push bolt to get the dowel out easily to re-position it.


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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2776270
05/19/20 08:55 PM
05/19/20 08:55 PM
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MI, usa
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Just had to do this. Couldn't drill the dowel, to hard. Vice grips and puller slipped off. Welded a 3/8" allen head bolt (the head side of the allen) to the dowel. Slid a deep well socket and washer over the threaded side, then thread a nut against the washer/socket. Tighten the nut . It'll come right out.
Doug

Last edited by dvw; 05/19/20 08:58 PM.
Re: Stuck .500"dowel pin in engine for trans bell help! [Re: dvw] #2776281
05/19/20 09:26 PM
05/19/20 09:26 PM
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Clanton Offline OP
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I may be able to come up with a puller.Could that also stick the dowel to the block?
Originally Posted by dvw
Just had to do this. Couldn't drill the dowel, to hard. Vice grips and puller slipped off. Welded a 3/8" allen head bolt (the head side of the allen) to the dowel. Slid a deep well socket and washer over the threaded side, then thread a nut against the washer/socket. Tighten the nut . It'll come right out.
Doug

Last edited by Clanton; 05/19/20 09:32 PM.

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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2776354
05/20/20 02:58 AM
05/20/20 02:58 AM
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Bend,OR USA
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I've had to drill and thread more than one dowel, others shruggy came out with vise grips but they really needed to be tight on the dowel. Once they slip I had to drill and thread them


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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Cab_Burge] #2776370
05/20/20 08:07 AM
05/20/20 08:07 AM
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VA
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I just did this to a nasty block that had been outside for years. Center punched, drilled and tapped for a 1/4" bolt. Placed socket over dowel with hardened washer and grade 8 bolt. Screwed in applying pressure against socket. Was surprised how easily they both came out. Grade 8 was over kill. I did use a penetrant on dowel to assist, breaking up any corrosion.

Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2776713
05/21/20 11:42 AM
05/21/20 11:42 AM
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Clanton Offline OP
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I am getting dowel puller cav-95200 this is not 1 with a slide puller it has a nut that you tighten on a stud inside a sleeve but still uses a collet.puller

Last edited by Clanton; 05/21/20 11:43 AM.

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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: dragon slayer] #2776769
05/21/20 02:44 PM
05/21/20 02:44 PM
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I've done that with just using the bolt to push the dowel out of the block, I wasn't smart enough to think about using a socket like you did up


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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Cab_Burge] #2776823
05/21/20 06:29 PM
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I have become the king of makeup tools to salvage stuck parts grin

Re: Stuck .500"dowel pin in engine for trans bell help! [Re: dragon slayer] #2776946
05/22/20 09:26 AM
05/22/20 09:26 AM
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Clanton Offline OP
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You all have provided some very good tricks.I figured the 100$ tool was worth a try.The slide hammer type was 300$ and didn't have the 1/2" collet I needed.


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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2776954
05/22/20 09:52 AM
05/22/20 09:52 AM
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Clanton Offline OP
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I found the collet,tightening sleve at Goodson to make your own. [img]https://goodson.com/collections/dowel-pullers[/img]


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Re: Stuck .500"dowel pin in engine for trans bell help! [Re: Clanton] #2777161
05/22/20 07:13 PM
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Clanton Offline OP
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I am checking the offset dowel .014 for tdc/bdc to help index it when installed.

S1030001.JPG

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