Info On Rebuilding Morrow Hub

Hub rebuild

Well I have also rebuilt a Morrow hub and there is no written info on how to put it back together that I could find.

What I did was simply line up the parts on a table as they were shown in the one diagram I found and pieced it together. It wasn't that hard and the brake seems to work ok (except I have to replace the sleeve as it has worn)

Like I said, print a blow up of the diagram and go by that.

Good luck..... Wayne

 

I have the Morrow service manual. Anyone who needs a copy(pdf), PM me your email addy.

 

Don't forget to include an e-mail address in the P.M...

 

need morrow service manual

hi i am a new guy here and its great to find answers to problems that no one knows about. but iam in need of the morrow service manual ,with the bike upside down the wheel binds up when coasting ,the cones are set right.after the brake is applied it binds and then when you pedal again there is a chatter or slight grinding noise . plus if you walk the bike the pedals keep rotating.

 

need morrow service manual

hi i am a new guy here and its great to find answers to problems that no one knows about. but iam in need of the morrow service manual ,with the bike upside down the wheel binds up when coasting ,the cones are set right.after the brake is applied it binds and then when you pedal again there is a chatter or slight grinding noise . plus if you walk the bike the pedals keep rotating. igotabike2@yahoo.com

 

Did you get that hub fixed?

 

He had two years, so I'd hope he'd fixed it by now...

 

For reasons unknown, I can't find my pdfs on my computer, so I can't send anyone these until further notice...

 

Thanks for bring it up

I found an exploded view I can use for reference, if anyone else might have that PDF please pass it on.
Abe

 

This is what I have on the subject, although I don't remember which CABE member to credit for initially posting it. I'm trying to upload additional PDF Instructional pages with some difficulty. I'll keep trying.

 

I couldn't upload the singe PDF that I had, So I had to turn it into 6 single jpeg's

 

Thanks for posting this Dave!! I rebuilt my first morrow hub this evening and it would have been a little confusing without the manual.

 

Thanks Dave

Thanks Dave for the great info. I was already planing to take mine apart to check the condition before I spend a lot of time cleaning a bad hub.

 

Morrow hub manual

Found this morrow hub manual while searching for causes of a morrow hub forward slip or slipping after reaching the top of a hill, the drive feels fully engaged, as the torque relaxes as the top of the hill, it slips and feels a little like floating. The coaster re-engages and slips a couple times before fully engaging steady again. It seems to happen at the top of every hill or on long straightaways with steady pedaling. Pg. 81 & 82 address possible causes of slipping.

Thanks for posting the Morrow manual Dave.

 

D. none of the above

In the Morrow Manual on page 81:
"Driving Troubles"
1. Slipping
d. cone and axle assembly may not be put together properly

(Pg85-87 Cone & Axle Assembly)

In the following thread :

http://thecabe.com/vbulletin/showth...ems-need-help/page2&highlight=Morrow+engaging

post #11 suggests axle can be tricky:

"Morrow hub can be a trick to reassemble. The two parts that go on the axel, with the spring between them,(clutch?)must have proper clearance for thing to work right. I think the clearance is 1/32 to 1/16th of an inch. What I have done in the past, if thing don't work right, is take only the outer piece of the clutch off and try to thread it back on the axel with the clearance as close as possible. It seems that too much clearance and either the braking issue or the same type of problem when pedaling forward."

I don't see any information in the manual touching on slipping / axle assembly tolerances other than a reference to (d. Cone and axle assembly may not be put together properly)

 

Morrow hub slipping forward and axle assembly

After a head scratch about why this morrow hub is slipping forward, I may have found the culprit. When assembling the axle, the two keyed pieces on the brake arm side w the spring between them need to be threaded on together. I took apart the hub in question and examined it carefully, noticing the keyed slots having a space on the hub slipping, I compared to the keys/slots being fit together on a working hub. In the manual in the axle assembly section it says these "extensions 'must' fit into the slots. This is important." ...