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piston holder tool alternative?

Posted: Sat May 18, 2019 10:43 am
by jabcb
Suzuki shop manuals show the use of the piston holder tool, part # 09910-20113, to hold the connecting rod so that you can torque down the crank drive gear nut & alternator rotor bolt.

Am working on the GT550 cafe build.
Service Bulletin GT-8 specifies the updated drive gear nut torque spec: 94 to 108 ft-lb.
The shop manual specifies the alternator rotor bolt torque spec: 6.6 to 10 ft-lb.
And the clutch sleeve hub nut torque spec: 36 to 43 ft-lb.

What do you guys do in lieu of using the unobtainable piston holder tool? And for the clutch nut?

Re: piston holder tool alternative?

Posted: Sat May 18, 2019 12:30 pm
by GTandcbr
This is what I use
https://youtu.be/Hp0ic3f9l0o" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
Available on ebay https://rover.ebay.com/rover/0/0/0?mpre ... 1088769595" onclick="window.open(this.href);return false;

Re: piston holder tool alternative?

Posted: Sat May 18, 2019 12:51 pm
by sportston
GTandcbr wrote:This is what I use
https://youtu.be/Hp0ic3f9l0o" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
Available on ebay https://rover.ebay.com/rover/0/0/0?mpre ... 1088769595" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
+1 on the clutch basket holder tool. I have one too thanks to previous recommendation from guys on here. It is very easy to use and not expensive.

Re: piston holder tool alternative?

Posted: Sat May 18, 2019 1:42 pm
by jabcb
Thanks. I have the EBC clutch tool.

From service bulletin Tools-4, the unobtainable piston holder tool is referred to as the “connecting rod stopper”. Part # 09910-20113 is 120mm long & was superseded by part # 09910-20114, which is 160mm long.
https://www.oldjapanesebikes.com/mraxl_ ... ins/page-2

What do you guys use in lieu of the connecting rod stopper tool?

Re: piston holder tool alternative?

Posted: Sat May 18, 2019 4:40 pm
by jabcb
Found this old topic on the GT550 pin gear (drive gear) nut torque spec.
viewtopic.php?f=2&t=12057&p=158047&hili ... ar#p158047

The 101 ft-lb is for the belleville spring washer, which is what I have.
Yeadon_m said, “I have B model and 101 came up easily with a large torque spanner. I put wadding between the primary pinion and clutch basket.”

Not exactly sure what you guys on the other side of the pond mean by "wadding".

I spent a good bit of time chasing down an NLA tool only to learn that the old-school pros are using an old rag between the clutch & drive gear.

Re: piston holder tool alternative?

Posted: Sat May 18, 2019 11:19 pm
by GTandcbr
Yep "wadding" just means old rag's stuffed in the drive gear. It's what I used to do when I couldn't afford the clutch holding tool!
I think you will find that the NLA piston holding tool was what was used before the far superior clutch holder was invented.