Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: r1_pete on July 25, 2015, 04:44:52 PM

Title: F1 F2 Barrel to head dowels.
Post by: r1_pete 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.

Title: Re: F1 F2 Barrel to head dowels.
Post by: hairygit 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

Title: Re: F1 F2 Barrel to head dowels.
Post by: Trigger 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.

Title: Re: F1 F2 Barrel to head dowels.
Post by: Spitfire on July 25, 2015, 07:43:59 PM

These might help for the F2

(http://i192.photobucket.com/albums/z244/DennisMcc/cylinderheadreplacement.jpg)
(http://i192.photobucket.com/albums/z244/DennisMcc/F2BARRELS.jpg)
(http://i192.photobucket.com/albums/z244/DennisMcc/partnumbers.jpg)
(http://i192.photobucket.com/albums/z244/DennisMcc/barrels.jpg)

Cheers

Dennis

Title: Re: F1 F2 Barrel to head dowels.
Post by: r1_pete on July 25, 2015, 08:39:43 PM

Perfect thank you.