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Author Topic: Is there more than one type of CB750K/F oil pan?  (Read 905 times)

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Offline fxef79

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Is there more than one type of CB750K/F oil pan?
« on: April 11, 2021, 09:42:09 AM »
I know the 750A was a wet sump, and different pan. But is there more than one style of K/F oil pan for the 69-78 years?


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Offline seanbarney41

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Re: Is there more than one type of CB750K/F oil pan?
« Reply #1 on: April 11, 2021, 10:19:01 AM »
They are all functionally the same.  The 77/78f engine has deeper fins.
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Offline fxef79

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Re: Is there more than one type of CB750K/F oil pan?
« Reply #2 on: April 11, 2021, 01:56:48 PM »
Quote from: seanbarney41 on April 11, 2021, 10:19:01 AM
They are all functionally the same.  The 77/78f engine has deeper fins.
Yeah - this is what I was thinking. Is it only the F or is it 77/78 K that also had the deeper fins?


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Offline seanbarney41

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Re: Is there more than one type of CB750K/F oil pan?
« Reply #3 on: April 11, 2021, 02:39:52 PM »
just the f I believe
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Offline Alan F.

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Re: Is there more than one type of CB750K/F oil pan?
« Reply #4 on: April 11, 2021, 07:38:59 PM »
My k8's PO learned powdercoating on this pan. Not sure if fins are long or short but here's a pic:

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Offline PeWe

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Re: Is there more than one type of CB750K/F oil pan?
« Reply #5 on: April 11, 2021, 11:21:37 PM »
Different gasket for the earlier pan in the gasket kits. Maybe K0 only.
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline fxef79

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Re: Is there more than one type of CB750K/F oil pan?
« Reply #6 on: April 12, 2021, 05:24:25 AM »
Quote from: Alan F. on April 11, 2021, 07:38:59 PM
My k8's PO learned powdercoating on this pan. Not sure if fins are long or short but here's a pic:


If what I’m understanding is right, that is the “longer fin” pan. The fins are present over the round flat spot. The other pans are just flat there - no fins.

That sound right to everyone?


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Offline Alan F.

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Re: Is there more than one type of CB750K/F oil pan?
« Reply #7 on: April 12, 2021, 05:32:06 AM »
I didn't remember that but after looking at them on eBay I think you're right. 77-78 bikes may all have these from what I see on ebay, and there were a couple of varieties, not all had the fins that curve around bolts like the one I showed.
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