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The mkiv Supra Owners Club

Impact Gun / Impact Wrench on subframe bolts


carl0s

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I see that according to http://www.mkiv.com/manual/manualtt/general_maintenance/mo14.jpg the subframe bolts need to be tightened to 148 lb/ft & 92 lb/ft.

 

The Impact Wrench I just bought (DeWalt DW292), is rated at 345lb/ft and doesn't offer any low or high settings.

 

Should I not bother? Just use a breaker bar, or what? I know nothing about impact wrenches, but I was thinking perhaps they work over time, e.g. so a short blast wouldn't do it up too tight, but holding it on there would do the full 345ft/lb.

 

It's pissing it down now anyway :(

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Impact wrenches are for undoing bolts, not doing them up. You need a torque wrench.

 

I was thinking that. I tried it on them anyway and it did sweet FA.

Torque Wrench is due to arrive tomorrow, but I used my breaker bar on six of the nuts and they were already FT.

 

I suspect my full-lock three-point-turn clunking is just due to my wide tyres..

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