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Post by ballvo on Apr 20, 2021 13:47:43 GMT -5
Hi Guys,
Just wondering if anyone knows the specs for H1 big-end bearings (13034-010)?
I'm about to take a crankshaft in for a rebuild. Just spoke to my builder and he's able to provide the crank bearings. I told him I'm hoping to re-use the connecting rods and he suggested that the big-end bearings should be replaced, at the very least.
He wondered if I could track down the size of this bearing (again, so he can try to source them). He prefers to have all the necessary parts on hand before teardown.
I see them available on ebay, etc. but with shipping costs and delivery delays I'm thinking time and money will be saved if he can source them.
Same question applies for H2 big-end bearings I guess, since I have one of those motors torn down and ready to build.
Thanks, Neil
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Post by kawonda750 on Apr 21, 2021 6:55:56 GMT -5
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Bearings
Apr 21, 2021 10:39:47 GMT -5
via mobile
Post by ballvo on Apr 21, 2021 10:39:47 GMT -5
Thanks, Dave.
I’d already seen that list. Unfortunately, it only lists the main bearings and seals for the H1, nothing on the con-rod bearings. (Seals only for the H2)
Still searching...
N.
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Post by kawonda750 on Apr 21, 2021 11:45:02 GMT -5
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Bearings
Apr 21, 2021 14:10:22 GMT -5
via mobile
Post by ballvo on Apr 21, 2021 14:10:22 GMT -5
WTF! I’m retired and bored too and I wasn’t able to stumble on that one. Thanks, that’s perfect (for the H1).
Unfortunately, the H2 parts list doesn’t show the big end bearing as a separate part so no part number. Diablo has a replacement but I’d still like to source the dimensions.
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Post by kawonda750 on Apr 22, 2021 5:47:22 GMT -5
pretty sure it is 13034-026 but can't find any specs on it.
Listed as 71KT002
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Bearings
Apr 22, 2021 10:33:54 GMT -5
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Post by ballvo on Apr 22, 2021 10:33:54 GMT -5
Thanks for all your help, Dave.
I’m curious where you found that P.N.?
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Post by kawonda750 on Apr 22, 2021 12:50:33 GMT -5
ebay search for H2 big end bearing
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Bearings
Apr 22, 2021 13:42:12 GMT -5
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Post by lc on Apr 22, 2021 13:42:12 GMT -5
Did you find the PN of a big end bearing for the 500 (preferably with a siver plated cage)?
J
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Post by mraxl on Apr 22, 2021 18:56:23 GMT -5
H2 big end= 13034-026 71KT002 16 X 21 X 22.5mm H1 big end= 13034-010 KT24.6430.6415pc
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Bearings
Apr 23, 2021 11:56:18 GMT -5
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Post by ballvo on Apr 23, 2021 11:56:18 GMT -5
H2 big end= 13034-026 71KT002 16 X 21 X 22.5mm H1 big end= 13034-010 KT24.6430.6415pc
Those are the numbers I was looking for! Thank-you kindly. N.
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Bearings
Apr 23, 2021 12:29:16 GMT -5
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Post by ballvo on Apr 23, 2021 12:29:16 GMT -5
Did you find the PN of a big end bearing for the 500 (preferably with a siver plated cage)? J Are there two different part numbers for these?
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Bearings
Apr 23, 2021 13:20:48 GMT -5
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Post by ballvo on Apr 23, 2021 13:20:48 GMT -5
Wait a second...
From Dave’s link we get (for the H1) 24.6 x 30.6 x 14.8mm, dimensions embedded in BRG-KT24.6430.6415PC WHEN “4” is used as a space and 14.8 is rounded to 15. Mraxl’s H1 values agree.
Values given for the H2 big end bearing are clearly incorrect, since they indicate a smaller, rather than larger, bearing.
I did some digging around and found the old parts from an H2 rebuild that I thought I’d tossed.
To summarize (first 3 values measured directly):
H2 small end bearing: 16.2 x 20.4 x 21.7mm H2 big end bearing: 28.2 x 34.5 x 16.7mm
H1 small end bearing: 16.2 x 19.6 x 21.7mm H1 big end bearing: 24.6 x 30.6 x 14.8mm
Thanks for the help on this.
N.
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