Author Topic: 90 Cylinder nut torque spec.  (Read 1956 times)

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mqtsteve

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90 Cylinder nut torque spec.
« on: September 03, 2015, 08:35:17 AM »
Does anyone know the torque specifications for 90 cylinder nuts?  I've looked in two manuals and can't find it.  Is the setting the same for the cast iron and aluminum cylinders?  Is it the same as the head nuts, 125 in/lbs?  Any help would be appreciated, Steve

Offline disc_valve

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Re: 90 Cylinder nut torque spec.
« Reply #1 on: September 07, 2015, 06:56:58 AM »
Hi, Steve,

I've never tried to use a torque wrench on my 90 cylinder base nuts - there's not really enough room to get in  there under the bottom cooling fin with anything more than an open-ended spanner, particularly the front RH side one that's tucked in against the exhaust stub. I just use one-handed firm pressure on a normal 10mm open-ender.

If you want a torque figure, I'd suggest around 5 or 6 ft.lb. It's a steel nut going onto a steel stud - pretty much the same as the head nut arrangement.

Hope that helps,

Graham

mqtsteve

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Re: 90 Cylinder nut torque spec.
« Reply #2 on: September 07, 2015, 07:39:17 AM »
Thanks Graham!  I was considering getting a box end torque wrench (check link).  There are some on eBay for around $20.  Thanks again, Steve

http://m.ebay.com/itm/Sturtevant-Richmont-LTC-150I-30-150-In-Lbs-3-17-Nm-Torque-Wrench-10mm-Head-/281634662104?nav=SEARCH

 


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