How do I remove the bearings on the crankshaft of my 400cc engine?
Thanks
Crankshaft bearing removal
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ICCSF 108
- Posts: 4369
- Joined: Sun Jul 17, 2005 12:00 am
- Real Name: Kenny Heins, AKA Grumpy
- Location: Blue Springs Mo.
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Crankshaft bearing removal
By using a tool that looks like this ( ebay Item number: 4606865667 )
You can only remove the outer bearings, (But you really have to watch so you don't bend the crank doing so), The center bearings has to be removed & replaced by a qualified small engine crankshaft rebuilder as they take at least a 10 ton press to press apart & press back together & have to be dial indicated back together properly or the bearings will wear out the crankcase.
If you don't have the tools or the knowledge to do this type of job I'd recommend taking it to a qualified shop & have them do it, less chance of ruining a crank or even worst a motor later.
Ken
You can only remove the outer bearings, (But you really have to watch so you don't bend the crank doing so), The center bearings has to be removed & replaced by a qualified small engine crankshaft rebuilder as they take at least a 10 ton press to press apart & press back together & have to be dial indicated back together properly or the bearings will wear out the crankcase.
If you don't have the tools or the knowledge to do this type of job I'd recommend taking it to a qualified shop & have them do it, less chance of ruining a crank or even worst a motor later.
Ken
AKA: Kenny, Grumpy, Mr. Richard Head
"I Hunt For it, Purchase it, Haul it, Sometimes Repair it, Sometimes Break it, Then Fix it Again, Label it, Warehouse it, Talk About it, So NOW, HOW Can I Take Any Less $$ For It?"
"God I love the smell of KLOTZ in the morning, That smell, you know that Gasoline/Oil Smell, MAKES the whole place SMELL like.. LIKE VICTORY. You know someday the 2 strokers are gonna end..."
Do Anti-War Protesters have reunions? If so what do they TALK about?
"I Hunt For it, Purchase it, Haul it, Sometimes Repair it, Sometimes Break it, Then Fix it Again, Label it, Warehouse it, Talk About it, So NOW, HOW Can I Take Any Less $$ For It?"
"God I love the smell of KLOTZ in the morning, That smell, you know that Gasoline/Oil Smell, MAKES the whole place SMELL like.. LIKE VICTORY. You know someday the 2 strokers are gonna end..."
Do Anti-War Protesters have reunions? If so what do they TALK about?
Crankshaft bearing removal
I needed bearing replaced in my 340 l/c engine... they were all shot/rusted/frozen and broke. I was told that the cost to split and rebuild the crank was a few houndred dollars!!!. In the end I bought a NOS crankshaft with all new bearing from DK-Trader for $100 (actually $90 with an ebay coupon). The point being that I see new cranks come up on ebay quite a bit for a relatively large number of JD sleds. Might also want to check ebay stores...
Now if I could just get tho motor back in the sled I be happy!
Dan
Now if I could just get tho motor back in the sled I be happy!
Dan
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Rodimus Prime
- Posts: 738
- Joined: Sun Jul 24, 2005 12:00 am
Crankshaft bearing removal
actually you need about 20 tons to do cranks 10 or 12 tons you can barely do it.
its the reassembly that darn tricky to do. i have one nos crank around packed in grease. so look around for them
its the reassembly that darn tricky to do. i have one nos crank around packed in grease. so look around for them