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ozzmonaut
Samba Member
Joined: November 29, 2008
Posts: 151
Location: mount airy, NC
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 Posted: Thu Jan 17, 2019 10:46 pm Post subject: cb o44 head question |
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| Sorry if this has been covered somewhere here. I searched keywords for a long time and checked the CB site, and found no conclusive info. I have a 1776 with CB 044 heads. The pushrod tubes are cheapo springy deals and seals are leaking. I want to go to stock tubes. Will they work on CB 044 heads? Or do I need big mouth tubes or some other fancy tubes? Thank you |
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Pruneman99
Samba Member
Joined: February 22, 2012
Posts: 5013
Location: Oceanside
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| Posted: Fri Jan 18, 2019 12:25 am Post subject: Re: cb o44 head question |
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The the need for big mouth tubes is due to ratio rockers, high lift cams, etc moving the pushrod over. The worst seems to be the aftermarket 1.25's in stock format.
Really, you just need to mock it up and see. |
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slalombuggy
Samba Member
Joined: July 17, 2010
Posts: 9147
Location: Canada
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| Posted: Fri Jan 18, 2019 5:10 am Post subject: Re: cb o44 head question |
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Stock tubes will be fine. I'm using 044 heads, 1.4 rockers and over .600 lift with 3/8" pushrods and stock tubes so you should be fine. Make sure the seams go up, facing the cylinders, and if for some reason it looks like the pushrod is too close to the tube at the opening in the head, you can take a 3/8 socket extension and roll the edge of the tube.
brad |
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ozzmonaut
Samba Member
Joined: November 29, 2008
Posts: 151
Location: mount airy, NC
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| Posted: Fri Jan 18, 2019 12:07 pm Post subject: Re: cb o44 head question |
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| Thanks for the help. I would love to mock it up, but didn't want to spend on stock tubes just to find out they won't work. I hope the rockers are stock, but have not checked yet. Knowing the builder, they are likely 1:1.25 |
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Fri Jan 18, 2019 11:56 pm Post subject: Re: cb o44 head question |
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I love my springy thingys!!! I will never install a set of oe type pushrod tubes on any engine....never, not no way, not no how. and I dont care if I piss off the wizard.  |
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ozzmonaut
Samba Member
Joined: November 29, 2008
Posts: 151
Location: mount airy, NC
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| Posted: Sat Jan 19, 2019 4:24 pm Post subject: Re: cb o44 head question |
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| I feel like spring tubes are a great idea, as long as they work better and more reliably than originals. But the set on this engine will not seat correctly and I am on a budget with this motor. |
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slalombuggy
Samba Member
Joined: July 17, 2010
Posts: 9147
Location: Canada
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| Posted: Sun Jan 20, 2019 9:23 pm Post subject: Re: cb o44 head question |
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If the are the scar aluminum tubes the d da tjat ho into the head are not cut square where the washer goes on. This is so you can spin the tube and get the correct angle to seat the seal in the head.. . Ask me how I found that out........
brad |
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ozzmonaut
Samba Member
Joined: November 29, 2008
Posts: 151
Location: mount airy, NC
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| Posted: Sun Jan 20, 2019 10:10 pm Post subject: Re: cb o44 head question |
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| It is leaking on the block side, not the head side. I don't even know what brand the tubes are. They are kind of a gold/yellow anodized look. |
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Sun Jan 20, 2019 11:00 pm Post subject: Re: cb o44 head question |
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| probably installation error. the seals need back up washers. and no oil on the back up washer..or...they may slide into the seal. I like the sily cone seals. you do need to slightly oil the seat on the head and case so the seal can slide into the proper position and seal like it should. or they may just be cheep ass hard cracked seals. they shoud of made the washers a little bigger dia. |
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