Author Topic: F1 F2 Barrel to head dowels.  (Read 890 times)

Offline r1_pete

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F1 F2 Barrel to head dowels.
« on: July 25, 2015, 04:44:52 PM »
I'm in the process of building 2 engines, a 392 and a 410.

The 392 F1 has 8 dowels with rubber collars 4 each between 1 & 2 and 3 & 4, easy.

The 410 parts book only shows 4 dowels, do these go on the inner or outer studs, I can't make it out from the drawings, I'm guessing its something to do with the single oil drains on the 410.

Cheers.

Pete.
2009 Yamaha XJR1300 sold
1977 CB750F2 café racer project. Sold
1972 CB750K2 hot rod. Sold
and an E-Type Jaguar that considers itself worthy of all my spare cash. Sold

1971 CB450
1978 Reliant Scimitar Cosworth.

Offline hairygit

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Re: F1 F2 Barrel to head dowels.
« Reply #1 on: July 25, 2015, 05:16:34 PM »
It does mention in Haynes and Cycleserve manuals that the F2 changes included reduction in the number of cyl head dowels and rubber sleeves from 8 to 4. So the F1 engine should have 8, and the F2 should have 4:-D
If it's got tits or wheels, it's hassle, if it's got both, RUN!!!

Offline Trigger

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Re: F1 F2 Barrel to head dowels.
« Reply #2 on: July 25, 2015, 05:55:18 PM »
That is correct for the 410. I would check the oil drain to make sure, just in case it has had a change before.

Offline Spitfire

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Re: F1 F2 Barrel to head dowels.
« Reply #3 on: July 25, 2015, 07:43:59 PM »
These might help for the F2






Cheers

Dennis
1976 CB750F

1977 CB750F2 In bits

1964 BSA A65R In bits

Offline r1_pete

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Re: F1 F2 Barrel to head dowels.
« Reply #4 on: July 25, 2015, 08:39:43 PM »
Perfect thank you.
2009 Yamaha XJR1300 sold
1977 CB750F2 café racer project. Sold
1972 CB750K2 hot rod. Sold
and an E-Type Jaguar that considers itself worthy of all my spare cash. Sold

1971 CB450
1978 Reliant Scimitar Cosworth.

 

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