Is Engine Case Shot, Case Assessment |
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Is Engine Case Shot, Case Assessment |
Costa05 |
Sep 4 2017, 01:40 PM
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#1
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Member Group: Members Posts: 320 Joined: 27-October 16 From: Phoenix, Arizona Member No.: 20,535 Region Association: Southwest Region |
Wanting opinion from the engine builders here. Is this case shot now with this metal gouges on the barrel mount? Piston was completely rusted solid in the barrel so had to cut the rod to get it off. Woops!!@$@*
(IMG:style_emoticons/default/unsure.gif) |
DM_2000 |
Sep 4 2017, 02:27 PM
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#2
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Member Group: Members Posts: 217 Joined: 16-August 17 From: PA Member No.: 21,351 Region Association: None |
For the ID of the hole, I'd work the metal slightly with a small hammer then run a bearing knife , single edge or similar around the ID to clean up any loose metal. I would not try to remove metal in an attempt make it smooth again, all you need is for the barrel not to catch.
For the sealing surface face I'd tap down any high spots, scrape off any loose metal and leave it at that. The goal is to reform metal not remove it. |
porschetub |
Sep 4 2017, 03:01 PM
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#3
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Advanced Member Group: Members Posts: 4,724 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
For the ID of the hole, I'd work the metal slightly with a small hammer then run a bearing knife , single edge or similar around the ID to clean up any loose metal. I would not try to remove metal in an attempt make it smooth again, all you need is for the barrel not to catch. For the sealing surface face I'd tap down any high spots, scrape off any loose metal and leave it at that. The goal is to reform metal not remove it. You would only be carefully removing the high spots,I didn't say to hog the area out with a file ??? (IMG:style_emoticons/default/rolleyes.gif) (IMG:style_emoticons/default/rolleyes.gif) . McMark recently did the same sort of thing on a damaged piston...he knows what he is doing. |
Costa05 |
Sep 4 2017, 04:53 PM
Post
#4
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Member Group: Members Posts: 320 Joined: 27-October 16 From: Phoenix, Arizona Member No.: 20,535 Region Association: Southwest Region |
For the ID of the hole, I'd work the metal slightly with a small hammer then run a bearing knife , single edge or similar around the ID to clean up any loose metal. I would not try to remove metal in an attempt make it smooth again, all you need is for the barrel not to catch. For the sealing surface face I'd tap down any high spots, scrape off any loose metal and leave it at that. The goal is to reform metal not remove it. You would only be carefully removing the high spots,I didn't say to hog the area out with a file ??? (IMG:style_emoticons/default/rolleyes.gif) (IMG:style_emoticons/default/rolleyes.gif) . McMark recently did the same sort of thing on a damaged piston...he knows what he is doing. Thanks guys for the professional advice here.. Awesome website. I was about to toss the case to the recycler and salvage all the rest of value and thought the biggest value is that damned engine stamp on the case in the event I restore this thing to numbers matching later. You helped make that decision easier for me. Heck it might be my first Type 4 rebuild on the horizon. |
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