bad Crankshaft |
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IronAge52
Member Joined: 22 Aug. 2016 Location: San Diego Status: Offline Points: 257 |
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Posted: 15 Mar. 2017 at 1:23am |
Hi guys,
I have started putting together another Willy's L-head engine together. So far I have gone thru 5 crank shafts some F-head some L- head and one gear drive Ford. My Crankshaft grinder says they all have cracks. I am beginning to wonder if all Willy's Cranks have cracks?. I am thinking of going ahead and using one. their are only so many Crankshafts I can find in my town. Any comments? Thanks, Jerry in San Diego |
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gearwrencher
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Lee MN
Member Joined: 13 Aug. 2008 Location: Harris, MN Status: Offline Points: 4949 |
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I brought 4 nice looking ones in a few years back, 2 were cracked, one was turned .070 and was junk, one was repaired, so 1 of 4. Took three in last July and one was repairable. Cranks and blocks are drying up!.
Lee |
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LEE
44 GPW-The Perfected Willys 49 2A “If you wait, you only get older” 67 M715 American Made Rolling History |
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wadoyado
Member Sponsor Member Joined: 29 Sep. 2016 Location: Mi. Status: Offline Points: 728 |
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Don't forget guys most (if not all) cranks are steel castings not cast iron and can be welded like any other tool steel. The camshafts too for that matter. My 47's crank is .060 under so I'll be checking local machine shops about welding when the time comes. Joe W
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IronAge52
Member Joined: 22 Aug. 2016 Location: San Diego Status: Offline Points: 257 |
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Thanks Lee for your comments . I did not think Crankshafts are repairable. where did you take them?
The ford block I have looks very good with fresh pistons great cam etc. but with bad external freeze cracks. I am thinking of seeing if i can get it welded as well. |
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gearwrencher
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Adrian
Member Joined: 01 Oct. 2011 Location: New Zealand Status: Offline Points: 1517 |
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I got a NOS crank a few years back, pricey but brand new, sure if there available way down here there must be some around in the US?.
It came in a WO wooden crate, cosmoline all over the place. My original was badly cracked as well. Don't forget Mahindra Indian Jeeps as a donor. The F134s will also work. As much as you might rubbish it there's a good chance that your crankshaft in your current vehicle is made there. I did contact a company, Steyer, I think and asked about them making me a new crank, no problem at all they said, but minimum order was 50. I thought having 49 spare crankshafts was a bit of an overkill |
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1946 CJ-2A Column Change 14605
1973 Saab 96 |
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Adrian
Member Joined: 01 Oct. 2011 Location: New Zealand Status: Offline Points: 1517 |
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Just checked, crankshaft manufacturer is "STYR", Google it and your be amazed who they manufacture crankshafts for, all x India.
I was working on a late model Mack Truck recently, cast into the front axle was "Made in India. The quality is excellent, recently heard of a guy here who could not get the diff ring and pinion he wanted for a Fiat Abarth Historic race car. He had two sets made in India and sold one to recover the cost of the one he needed, again top quality workmanship. Adrian |
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1946 CJ-2A Column Change 14605
1973 Saab 96 |
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Joe Friday
Moderator Group Sponsor Member x 2 Joined: 26 Dec. 2010 Location: Jeep Central Status: Offline Points: 3654 |
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Crankshafts and connecting rods were forged.
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Lee MN
Member Joined: 13 Aug. 2008 Location: Harris, MN Status: Offline Points: 4949 |
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Yes I am aware of that, the last two I had repaired had the rear seal area sprayed as well as one journal. Where I take mine for grinding they will spray weld one journal or rear seal area for no additional cost, after that I believe it's $30-40 a journal, if you need several done it becomes very costly. If they are cracked they are not repairable at least where I go, and as I said most are cracked. Lee |
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LEE
44 GPW-The Perfected Willys 49 2A “If you wait, you only get older” 67 M715 American Made Rolling History |
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wadoyado
Member Sponsor Member Joined: 29 Sep. 2016 Location: Mi. Status: Offline Points: 728 |
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wadoyado
Member Sponsor Member Joined: 29 Sep. 2016 Location: Mi. Status: Offline Points: 728 |
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Lee MN, I was mainly referring to Tig weld repair of the cracks then journal build up either spray or manual Tig. Yeah I know it's labor intensive and can be expensive, I know a lot of people might scrap a crank not knowing they had the option. Thanks Joe
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Joe Friday
Moderator Group Sponsor Member x 2 Joined: 26 Dec. 2010 Location: Jeep Central Status: Offline Points: 3654 |
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wadoyado
Member Sponsor Member Joined: 29 Sep. 2016 Location: Mi. Status: Offline Points: 728 |
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The ingot, first in the pic's at some point was liquid then "cast" into the ingot shown, then forged. Steel is below 1.75% carbon content, cast iron 2-4% range, this is what matters in weldability, I probably should have said cranks are steel forgings to be more clear but there are cranks that are just cast then machined. Look at the camshaft is it cast iron? or cast steel? Can't tell by just looking. That's was my point about cranks- steel not cast iron. Joe W
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