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1964 Dart Grüne Hölle Road Course AutoX Car IRWIN PA https://slantsix.org/forum/viewtopic.php?f=42&t=60536 |
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Author: | Greg Ondayko [ Sun Mar 12, 2023 3:53 pm ] |
Post subject: | Re: 3/3/23 |
SpaceFrank wrote: Can you give more details on your procedure? I've ruined a couple pistons doing this and would love any pointers you have. Hi Frank, are you trying to remove and reuse pistons /pins or installing new pins / pistons onto existing rods? Greg |
Author: | SpaceFrank [ Sun Mar 12, 2023 7:17 pm ] |
Post subject: | Re: 3/3/23 |
Greg Ondayko wrote: SpaceFrank wrote: Can you give more details on your procedure? I've ruined a couple pistons doing this and would love any pointers you have. Hi Frank, are you trying to remove and reuse pistons /pins or installing new pins / pistons onto existing rods? Greg Installing new pins and pistons onto existing rods. Previously I've set up a jig to hold the piston in a press, then heated up the rod small end as much as I could and held it in place by hand while pressing the pin down through the piston. But if I'm in a hurry and it gets a little cockeyed, the piston is scrap. This looks like you inserted the pin while the rod was held in a vice. Did you get the small end hot enough that the pin could be inserted by hand? If so, what gas were you using? |
Author: | Greg Ondayko [ Sun Mar 12, 2023 8:28 pm ] |
Post subject: | Re: 3/3/23 |
SpaceFrank wrote: Installing new pins and pistons onto existing rods. Okay. SpaceFrank wrote: Previously I've set up a jig to hold the piston in a press, then heated up the rod small end as much as I could and held it in place by hand while pressing the pin down through the piston. Okay, i am no expert on this, but that seems backwards to me - You are holding the Light, Cool part still, and futzing with the long heavy & hot part. SpaceFrank wrote: Installing This looks like you inserted the pin while the rod was held in a vice. Correct. I have a somewhat free standing / pseudo soff jaws Drill press vise that I used for this one. Any Vise with some non marring jaws will do. SpaceFrank wrote: Did you get the small end hot enough that the pin could be inserted by hand? If so, what gas were you using? Yes - I Probably Could have used Propane, But I did not want to futz around with this and by the 3rd one I had it figured out that I could do it quick and consistent for the next 3. I used Mapp/Pro.... Its in the Yellow Cylinders at the hardware Store With a bernzomatic TS4000T or TS8000T. Those other basic torch heads do not generate enough temperature at low ambient temps / bottle pressures (even with Mapp Gas) and prolly do not get the small end expanded enough for this work. you also can toss your Piston Pins in the freezer for a bit more work time if needed. (I did not do that, but thought about it) Yes the pins were inserted by hand. There is only about ~1sec of "work time before the Heat of the conn rod small hole transfers to the pin, and swells the pin in place. It also swells in the pin bore of the piston for ~ 20 Seconds then calms down and all is good..... swingin' pistons on the rods. I made a sharpie mark on my pins. Pins were 2- 15/16" Total length, I divided them into 3rds and made about 15/16" on the pin. When i Saw the mark come through the connecting rod then I stopped pushing and I was close enough to center. I had 2 pins that I was way off on and I had to do some creative fixturing on the Shop press to get them centered to my liking, but it all worked. Alright, I think I got all of the questions for ya. One last thought on your assembly.. Moving the pin through the piston to the rod should not be a problem. I had my pin started in the piston on a bench close by, once the rod was up to the temperature I felt was hot enough, i brought the piston over to the rod and just pushed it through, stopping at my mark, and it goes into the other side of the piston pin bore with no cockeyed fussiness. As you know this needs to happen quick and be dead nuts on pretty much the first time. Hope this helps. UTG Has a video on this, https://www.youtube.com/watch?v=QUX76rwzBTc Its' not exactly the same as what I did, but end results are the same. Greg |
Author: | SpaceFrank [ Sun Mar 12, 2023 8:37 pm ] |
Post subject: | Re: 1964 Dart Grüne Hölle Road Course AutoX Car IRWIN PA |
Thanks! I hopefully won't need to do this again for a while, but I'll remember it when I do. I'm also really enjoying seeing your work on Grüne Hölle. Sorry for the interruption! |
Author: | Greg Ondayko [ Mon Mar 13, 2023 4:43 am ] |
Post subject: | Re: 1964 Dart Grüne Hölle Road Course AutoX Car IRWIN PA |
No Problem glad to be of some help to another crazy lemonhead with a '64 dart. Best of luck! |
Author: | Rick Covalt [ Mon Mar 20, 2023 8:58 am ] |
Post subject: | Re: 1964 Dart Grüne Hölle Road Course AutoX Car IRWIN PA |
Are the pieces that go down into the pan "fixed" or do the move? |
Author: | Exner Geek [ Mon Mar 20, 2023 9:28 am ] |
Post subject: | Re: 1964 Dart Grüne Hölle Road Course AutoX Car IRWIN PA |
Greg, make sure there is plenty of clearance where the oil dip stick goes through the crank scraper. |
Author: | Greg Ondayko [ Mon Mar 20, 2023 3:08 pm ] |
Post subject: | Re: 1964 Dart Grüne Hölle Road Course AutoX Car IRWIN PA |
Exner Geek wrote: Greg, make sure there is plenty of clearance where the oil dip stick goes through the crank scraper. 10-4 , Thanks Seymour It seems there is already plenty of room but the stick angle can be quite sever when it gets into the pan rail area. Will double check on assembly. Greg |
Author: | Greg Ondayko [ Sat Apr 01, 2023 7:43 am ] |
Post subject: | 4/1/23 |
4/1/23: |
Author: | Rick Covalt [ Sat Apr 01, 2023 11:16 am ] |
Post subject: | Re: 1964 Dart Grüne Hölle Road Course AutoX Car IRWIN PA |
Wow! Those look super dooper nice! They almost look too nice for a street car. I see more more speed for Ruster with them!! |
Author: | Greg Ondayko [ Sat Apr 01, 2023 7:15 pm ] |
Post subject: | Re: 1964 Dart Grüne Hölle Road Course AutoX Car IRWIN PA |
Rick Covalt wrote: Wow! Those look super dooper nice! They almost look too nice for a street car. I see more more speed for Ruster with them!! Thanks Rick, They will be going on the Grüne Hölle Dart. - Would like to buy another set for Ruster Sometime too.. but we'll see how these work first. |
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