spike
New Member
Posts: 16
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Post by spike on Jul 29, 2023 17:55:02 GMT
Good evening Guys and Girls.
I am readying my New Hudson for the three moors run in September (gulp!)
I have had the guys at villiers services to recork a rather tired clutch. With it all assembled the clutch pushrod is too short to actuate the clutch. Can someone from the moped hive instruct me as to the standard length of a 2F pushrod as there is a fair chance That I have done something daft when I have assembled it.
Best wishes all
Steve
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Post by davwat on Jul 29, 2023 20:58:27 GMT
Good evening Guys and Girls. I am readying my New Hudson for the three moors run in September (gulp!) I have had the guys at villiers services to recork a rather tired clutch. With it all assembled the clutch pushrod is too short to actuate the clutch. Can someone from the moped hive instruct me as to the standard length of a 2F pushrod as there is a fair chance That I have done something daft when I have assembled it. Best wishes all Steve Funny you should mention push rod length! just today a mate arrived on his New Hudson and his clutch was not disengaging his rod was quite a bit shorter than it should be so I robbed the push rod from my James to get him going. You didn't need to know that but I thought I would tell you anyway, if he doesn't return it tomorrow I will measure another one. |
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spike
New Member
Posts: 16
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Post by spike on Jul 30, 2023 7:18:07 GMT
Thanks Dave,
Can you also measure the diameter please.
I am going to use a cut down long shank drill bit to make the pushrod which should be hard enough not to wear. The current pushrod is a bit of 3/16 bolt which clearly is not right. Thank you for taking the time to help!!
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Post by JamesCentral on Jul 30, 2023 7:41:51 GMT
I've not taken a 2F clutch apart ... but I have done it on a Junior DL. Are they similar? It's just that the Junior also has a 3/16" ball that goes between the rod and the rest of the mechanism - does the 2F have this too?
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spike
New Member
Posts: 16
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Post by spike on Jul 30, 2023 19:01:12 GMT
Good evening Andrew,
That is a very good thought as almost every motorcycle that I have fettled has the arrangement that you describe and a ball bearing would have the effect of making my pushrods 3/16 of an inch longer. I have looked through my 1957 copy of the 2f operating instructions and spare parts list. No clutch ball bearing is listed although the bearing races are listed as ball bearings which is a little confusing.
I think the answer will lie with Dave's pushrods measurement. I want to get it right as I suspect once the new corks are bedded in, the required push rod length to operate the clutch will be less than the length currently required with brand new clutch corks. A bit of poor engineering could see me marooned in the West Country. Maybe I should take a selection of lengths at 1/8" intervals as a belt and braces approach.
I wonder why Villiers abandoned the ball bearing which must prevent wear of the revolving parts?
Best wishes,
Steve
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Post by davwat on Jul 30, 2023 19:37:01 GMT
Thanks Dave, Can you also measure the diameter please. I am going to use a cut down long shank drill bit to make the pushrod which should be hard enough not to wear. The current pushrod is a bit of 3/16 bolt which clearly is not right. Thank you for taking the time to help!! There you go. I picked up my rod that I loaned to our Ian yesterday from my James that looks to be correct I would say and I also thought to measure the diameter.  also a bit late now if you didn't but did you check the little jocker that the rod pushes onto? this is a new one. I have seen them worn down to almost breaking.  BTW there is no ball bearing in the 2F's |
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Post by davwat on Jul 30, 2023 20:05:57 GMT
I've not taken a 2F clutch apart ... but I have done it on a Junior DL. Are they similar? It's just that the Junior also has a 3/16" ball that goes between the rod and the rest of the mechanism - does the 2F have this too? No ball in the 2F's. The only things that have ever fallen out of my JDL's are 3 rods of various lengths and 2 balls. |
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spike
New Member
Posts: 16
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Post by spike on Jul 30, 2023 20:40:13 GMT
Hi Dave
That is a just the information I need. I will measure the current pushrods tomorrow. Hopefully this will explain the issue. the clutch qT shaped Cotten pin is in good condition but as you say the more worn it is the longer the pushrods would need to be.
Now I have the missing information I will report back once the issue is resolved.
Once again thank you very much.
Best wishes,
Steve
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spike
New Member
Posts: 16
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Post by spike on Aug 1, 2023 9:50:18 GMT
Excellent advice Dave. My too short pushrod measured 58mm and is still too short. You were absolutely right in your diagnosis of a worn clutch cotter which was about to fail and would never have survived 500 miles of ups and downs in Cornwall and Devon (I’m not sure I will!!)
New one arriving tomorrow. Once that’s fitted I will set the pushrod length and report back.
Best wishes
Steve
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spike
New Member
Posts: 16
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Post by spike on Aug 4, 2023 15:42:42 GMT
Clutch now restored to health with new clutch cotter and 56mm pushrod. This is near the limit of adjustment at the pushrod lever screw and at the handle bar adjustment while leaving some free play when the clutch is engaged to prevent undue wear. As the new plates wear this should be about right. I'm amazed how sensitive the clutch set up is to pushrod length 2 mm makes a massive difference with regard to readjustment potential. I'm going to take some spare material with me so if I run out of adjustment as the clutch beds in I can still make a clutch that releases.
Once again thank you for all of your help
Steve
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spike
New Member
Posts: 16
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Post by spike on Aug 4, 2023 15:43:34 GMT
Clutch now restored to health with new clutch cotter and 56mm pushrod. This is near the limit of adjustment at the pushrod lever screw and at the handle bar adjustment while leaving some free play when the clutch is engaged to prevent undue wear. As the new plates wear this should be about right. I'm amazed how sensitive the clutch set up is to pushrod length 2 mm makes a massive difference with regard to readjustment potential. I'm going to take some spare material with me so if I run out of adjustment as the clutch beds in I can still make a clutch that releases.
Once again thank you for all of your help
Steve
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