Question about GT750 crankshaft assemble

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dupantoja
Still in the Driveway
Posts: 1
Joined: Wed May 07, 2014 2:56 pm
Country: Brazil
Suzuki 2-Strokes: GT550

Question about GT750 crankshaft assemble

Post by dupantoja »

Hi folks,
I mounted my GT750's crankshaft a few months ago, and when I was pressing the last left part, the press reached 2.5 ton. The other parts reached greater pressure on the assembly.
I would like to know if this pressure is enough or I better disassemble the engine and change these parts.
I also thought about not using the electric starter to avoid misalignment by twisting the left side crankshaft.
I didn't find any reference guide with the press values of the crankshaft.
What do you think?

Thanks in advance, best regards.
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jabcb
Moto GP
Posts: 4240
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: Question about GT750 crankshaft assemble

Post by jabcb »

I don’t know anything about assembling cranks. I just sent them to Bill Bune & they come back correct.

There are two service bulletins that may help.
See Specification-7 for crank dimension specs: http://www.ozebook.com/compendium/techb ... %206-9.pdf
See GT-6 for GT750 crank mods: http://www.ozebook.com/compendium/techb ... 0001-6.pdf
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
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