Installing coupler

jackd1023

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I am replacing the engine in my Chaprral Sunests, I am installing a new 7.4 liter, the flywheel is already installed on the engine with bolts, I have a new coupler ob I have to remove the bolts, would I be better off installing studs if so what size, or purchasing longer grade 8 bolts and run the bolt through the coupler to tighten? Thanks in advance!
 

Scott Danforth

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which style coupler? many of the volvo couplers bolt in to the clutch mounting holes.
 

jackd1023

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which style coupler? many of the volvo couplers bolt in to the clutch mounting holes.
I purchased a new coupler, the only one I could find for the 7.4 was the one that bolts to the crankshaft with the crankshaft/flywheel bolts.
 

jackd1023

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Anyone? Maybe have a pic ?
 

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dubs283

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The coupler pictured attaches to the crank end, basically sandwiches the flywheel between it and the crank end

Factory setup uses studs in the crank end with flanged nuts holding the coupler and flywheel on. Unknown what the torque value from volvo is but do know mercruiser flywheel bolts are torqued to approx 75 lb/ft

I don't have a special tool that would allow for proper torque to be applied with a standard torque wrench. In the past I've used a box end wrench with blue loctite and snugged sufficiently with a zero failure rate, ymmv
 
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