I need to check the clutch rod length. It seems that the tool for checking the length would be pretty easy to make. Can someone supply me with the length of the rod in the tool?
Thanks, Jon
'13 Stelvio
Thanks, Jon
'13 Stelvio
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Clutch Rod
- Thread starterVt-Guzzi
- Start date
Just take it out & measure rod, You can not buy one, none in stock & part has been discontinued. You would have to make one or use a used one the same size or longer.
Time to put on your thinking cap. With the gearbox mounted to the engine, place a long rod into the channel and mark where it is flush with the end of the gearbox. That is measurement 1. Next measure the thickness of all components that push the pushrod. That is measurement 2. Getting the thickness of the portion of the piece that goes over the pushrod can be done using a vernier caliper. Subtract measurement 2 from measurement 1. Then I'd take a couple mm from that to give the length of the needed pushrod. If this logic doesn't work, please let us know.
From what I and other Techs around the world have found from changing the 8V clutches & 2V CARC clutches is that you never need one. I used the tool on my 1st three, None needed. This is why you will not find any for sale and they discontinued the part numbers.
No one ever ordered any, ever. I've changed around 7 8V clutches and all been good.
I do believe Guzzi was worried about quality control on the thickness of parts assembled, rod wear and such.
If you need to measure yours do as John says or you could seek out a Guzzi dealer that has the tool & buy it from them.
There are no rods for sale at any importer in the world, I have checked.
No one ever ordered any, ever. I've changed around 7 8V clutches and all been good.
I do believe Guzzi was worried about quality control on the thickness of parts assembled, rod wear and such.
If you need to measure yours do as John says or you could seek out a Guzzi dealer that has the tool & buy it from them.
There are no rods for sale at any importer in the world, I have checked.
Thanks John, that does make sense.
The reason I am even contemplating this is that over the last few thousand miles I have had some clutch slip on really hard acceleration. I changed the clutch on a road trip in 2023 a thousand miles from home. It was updated with the 1400 unit and my current logic is that the rod would likely need adjustment with that change. The clutch now has about 35,000 miles on it.
The reason I am even contemplating this is that over the last few thousand miles I have had some clutch slip on really hard acceleration. I changed the clutch on a road trip in 2023 a thousand miles from home. It was updated with the 1400 unit and my current logic is that the rod would likely need adjustment with that change. The clutch now has about 35,000 miles on it.
Once a clutch slips it is next to impossible to stop slippage. May be necessary to replace the clutch again. Then check rod length. if available the 1400 clutch rod may be the answer. In any case, slippage may be from the rod being too long. It is easier to shorten a rod than make it longer.
as I understand it, we are measuring the free play between the actuator and the rod. mine is currently .6mm. What is the acceptable free play?
I don't know. If you call your local dealer they may have the specification in a service bulletin. Once you find out please post it here.
Hi everyone, I have updates. I happen to have two Stelvio's. they are 19 serial numbers apart. The clutch disengages at the very end of the lever travel whereas the new (to me bike) disengages really close to the grip and has a really positive feal. I will call them old bike and new bike.
I took both bikes apart to compare the parts involved. I measured the stick out of the slave plunger as well as the depth between the clutch rod and machined face in the transmission case and came up with some interesting numbers. To cut to the chase, the Old bike has .08" or about 2mm more space between the mating surfaces. There are four clutch rods in the manual each one is 1.5mm different in length.
In order to bring my clutch lever action closer to the grip and match the new bike, I need a 2mm longer rod.
That's my logic anyway. What do you think?
I took both bikes apart to compare the parts involved. I measured the stick out of the slave plunger as well as the depth between the clutch rod and machined face in the transmission case and came up with some interesting numbers. To cut to the chase, the Old bike has .08" or about 2mm more space between the mating surfaces. There are four clutch rods in the manual each one is 1.5mm different in length.
In order to bring my clutch lever action closer to the grip and match the new bike, I need a 2mm longer rod.
That's my logic anyway. What do you think?
Attachments
You sir must like wrenching, what an endeavor. I would have never thought you would do all that BUT now you know exactly the issue. I would imagine the assembler just grabbed what ever they had sitting there. I don't see an efficient factory putting it together multiple times to get it correct. They most likely use the tool you asked about. "Close enough, it'll work anyway."
I changed the clutch on a road trip in 2023 1000 miles from home in a friends garage. I didn’t have the tool and at the time, was told it wasn’t necessary by a dealer. You can watch the story if you like. The bike has since been to Alaska and Europe, some 35,000 miles.