Speedometer

Speedometer won't pass 20mph

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1950Panhead
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Re: Speedometer

#16

Post by 1950Panhead » Sat Oct 13, 2018 6:14 pm

Drive gears, 1936 to 1961, 1962 to 1969, Late 1969 thru 1980

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Re: Speedometer

#17

Post by white1j0 » Sat Oct 13, 2018 7:05 pm

Thanks for the information, why is that a 7 tooth gear???, it looks to me to only have 4

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Re: Speedometer

#18

Post by RUBONE » Sun Oct 14, 2018 2:34 am

Thanks for the information, why is that a 7 tooth gear???, it looks to me to only have 4
You are viewing it wrong. Count the ends of the spirals all the way around the gear, don't just look at it face on.

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Re: Speedometer

#19

Post by white1j0 » Tue Oct 16, 2018 2:38 pm

I had the transmission turned upside down to drain the remainder of the oil out, so I could have the drive gear replaced, and this small black feral fell out, any idea where it belongs ?
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Re: Speedometer

#20

Post by RooDog » Tue Oct 16, 2018 4:57 pm

I found this piece of steel inside my breather valve, 1950 Panhead FL....WTF.... RooDog
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1950Panhead
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Re: Speedometer

#21

Post by 1950Panhead » Tue Oct 16, 2018 6:39 pm

Well, this is a guessing game ...
had the transmission turned upside down to drain the remainder of the oil out, so I could have the drive gear replaced, and this small black feral fell out, any idea where it belongs ?
It belongs in the trash.


I found this piece of steel inside my breather valve, 1950 Panhead FL....WTF.... RooDog
It looks like the remains of a severely damaged breather valve ... hope your cases are ok.

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Re: Speedometer

#22

Post by RooDog » Tue Oct 16, 2018 7:39 pm

I couldn't find any more pieces of this scrap inside the engine and I did tear it down as far as splitting the cases, but I did not bust the crank. It has since been running with no ill effects. Too small a radius/diameter to be the breather valve, possibly the size of a tappet body. This engine has been in my family since 1967, but other than a short time at the local Harley dealership no one has worked on this engine other than me, but I do suspect sabotage.... LOL, but as I said, she is up and running just fine...... RooDog

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Re: Speedometer

#23

Post by Andygears » Wed Oct 17, 2018 10:35 am

Perhaps a portion of the circuit breaker guide diameter just above the gear? How it would migrate into the breather gear is unknown.

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Re: Speedometer

#24

Post by white1j0 » Sat Oct 20, 2018 2:08 am

Probably too late to ask this question now, we put the correct speedo drive gear in the transmission today, pressed on nice after heating and indicated it on my lathe, it turned out real nice, we put the trans. back together which went well, the question is, should we have staked it, I didn't want to knock it out of alignment by staking it, also I was thinking back in the days when I would replace ring gears on flywheels, they never needed staking. any thoughts on this? Thanks Whitey

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Re: Speedometer

#25

Post by 1950Panhead » Sat Oct 20, 2018 1:11 pm

any thoughts on this?
If gear is tight all is good.
If gear is loose it will fall off.

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Re: Speedometer

#26

Post by RooDog » Sat Oct 20, 2018 4:36 pm

I have successfully tack welded a speedo ring gear to my Andrews counter cluster. A MIG or TIG's short burst of heat concentrated at three tacks was not enough to damage any heat treatment. I did this probably 40 years ago with no ill effects. RooDog

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Re: Speedometer

#27

Post by RUBONE » Sat Oct 20, 2018 7:07 pm

Loctite Bearing and Sleeve retainer will hold it on as well, but needs to be applied at installation. However if the gear is loose to begin with about the only option is the tack weld.

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