Quote:
Quote:
If you look at the video these guys did, the spacers were very simple.
I thought so, but they have a full machine shop.I do not.
So simple a driver could do it.
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| Any machinists want to tackle the forged crank into the cast crank block? https://slantsix.org/forum/viewtopic.php?t=67651 |
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| Author: | slantzilla [ Sat Mar 02, 2024 12:48 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
If you look at the video these guys did, the spacers were very simple. |
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| Author: | ceej [ Sat Mar 02, 2024 1:55 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
I've been through King catalog, then tried to contact them with no response. My FAPS/Machine Shop was unable to source what we needed. looks like the world changed. If I could get a 10 under thrust with unfinished thrust surfaces, I could turn them to spec on my lathe, Do you know of a facing knurl that could be used on the thrust side? It wouldn't take much, but the knurls I have are designed to run on the diameter, rather than axially. It's going to be a light kiss, but still, I'd think it would run more like a grinder than a knurl. A bevel or toroidal knurl? I'll reach out to King again. CJ |
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| Author: | hyper_pak [ Sat Mar 02, 2024 1:56 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
Quote: If you look at the video these guys did, the spacers were very simple.
I thought so, but they have a full machine shop.I do not. |
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| Author: | ceej [ Sat Mar 02, 2024 1:59 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
Quote: If you look at the video these guys did, the spacers were very simple.
I missed the videos, which videos?CJ |
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| Author: | hyper_pak [ Sat Mar 02, 2024 2:41 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
https://www.youtube.com/watch?v=I7daGYuiD6U About 10 minutes in. |
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| Author: | ceej [ Sat Mar 02, 2024 3:04 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
Thank you! Now I know what your talking about. I've got a different issue in a non-slant application. I'll reach out to King again. CJ |
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| Author: | CNC-Dude [ Sat Mar 02, 2024 3:20 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
Ok, yeah I was thinking OD/ID spacer. This is basically a shim and would be very easy to make in a lathe. What issue are you having CJ....? |
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| Author: | slantzilla [ Sat Mar 02, 2024 4:16 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
Quote: Quote: If you look at the video these guys did, the spacers were very simple.
I thought so, but they have a full machine shop.I do not. So simple a driver could do it.
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| Author: | slantzilla [ Sat Mar 02, 2024 4:21 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
If you need a forged block I will gladly donate about 6 of them to you. Buddy of mine is trying to give me a complete 70 Duster motor now that I won't even go pick up. 
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| Author: | hyper_pak [ Sat Mar 02, 2024 6:35 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
Quote: If you need a forged block I will gladly donate about 6 of them to you. Buddy of mine is trying to give me a complete 70 Duster motor now that I won't even go pick up.
6?That is like a lifetime supply. 3 Lifetimes for me. |
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| Author: | ceej [ Sun Mar 03, 2024 5:23 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
Quote: Ok, yeah I was thinking OD/ID spacer. This is basically a shim and would be very easy to make in a lathe. What issue are you having CJ....?
I've got a crank with damaged thrust surfaces. I need to machine the surfaces, and replace the thrust bearing with one that has roughly 10 thou greater axial bearing surface to take up the additional space between the bearing, and the crank surface. In effect, an oversize thrust bearing surface. We didn't bother with finding out exactly where the thrust surfaces cleaned at, as we couldn't find oversize thrust bearings anymore. Why spend the energy?The guy I knew that was spray welding has left the state. Know anybody that has that process, or could build up the thrust with another process? I suppose I could tig the surface up, turn it, have it straightened, and hardened/annealed, but I don't know anyone in the industry anymore. Thoughts? Know anybody local that is doing crank repairs of this sort? CJ |
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| Author: | hyper_pak [ Sun Mar 03, 2024 5:45 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
I could ask Blaine's in Dallas. They were going to weld the #6 on a crank I took them. |
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| Author: | ceej [ Sun Mar 03, 2024 6:19 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
it would cost a few hundred dollars to ship a crank. Gotta be local. Appreciate the thought though! CJ |
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| Author: | CNC-Dude [ Sun Mar 03, 2024 6:28 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
CJ, we did submerged arc wire welding for crank repair on journals and thrust surfaces. Many engine machine shops have this ability. The submerged portion is basically a hopper that poured by gravity the flux to cover the area being welded, its about the roughness of coarse sand. You could do the same thing with a mig using the correct wire and wrapping the journal to prevent splatter getting on unwanted areas.... |
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| Author: | Killer6 [ Sun Mar 03, 2024 8:52 pm ] |
| Post subject: | Re: Any machinists want to tackle the forged crank into the cast crank block? |
Quote: https://www.youtube.com/watch?v=I7daGYuiD6U
One thing that stuck out, they used the .060"/.090" split, not certain exactly if to center rest of mains, or throws on bore center. Either way, They had to machine the back of the crank sprocket to get it in line w/the cam, so Your machining isn't over with these shim spacers.
About 10 minutes in. |
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