GRRRRR..... Crank Pulley

Heads, valves, pistons, rods, crankshaft, etc...

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Psychoreo
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GRRRRR..... Crank Pulley

Post by Psychoreo »

Yea, so apperantly whoever installed the GFB crank pulley on my car either didn't properly tighten it or messed something else up, because today at about 7:20am, the damn thing fell off. Yea, Fell...

It made no noise so i figured a belt broke or something because the battery light came on (no alternator) and the steering was hard as a rock (no power steering.) Eventually the car died, about 1.5 miles away from the shop and uphill none the less. So I walked to the shop, grabbed the 22mm I needed, threw the pully back on (the damn key was missing by now, but i only had to get it to the shop) went to start it ,and no compression. boost gague shows pressure in the mani when cranking. $10 says I found where the key went....timing cover.... haven't had the cover off because I had to go to work... damn pulley
stupid electrical work...
realfinn
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Post by realfinn »

This seems to have been brought up a lot lately. Few people having trouble with pulley wobble. In another post someone said the torque spec should be much higher than what the FSM suggests.
ericem
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Post by ericem »

Ya it says like 70ft-lbs in a haynes manual, but subaru told me 140ft-lbs, and mine fell off, 300 later, i got a new key, and a new pulley, and belts, and i could only torque the bolt to 100ft-lbs, so i brought it to subaru, they used a wrench with 4 bolts at the end to hold the pulley, and torqued it to 140ft-lbs and i watched them.
1993 Subaru Legacy L AWD Wagon R.I.P
1994 Subaru Legacy SS R.I.P :(
2004 Nissan Titan LE 4X4
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subytech
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Post by subytech »

Techs at work torque them to 150 ft/lbs, you can hold the crank still useing a screw driver inserted in an access hole to the flywheel/torque converter behind the right hand cylinder head.
92 Legacy Turbo, 5sp MT, Early Large CC 20G heads, Ported custom clocked td04, Cobb catted DP, Injen SS 3" exhaust, Turbosmart MBC @ 10psi, Apexi 20g intake, custom FMIC, Fidanza 11lb flywheel, stock 05 WRX clutch
Psychoreo
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Post by Psychoreo »

yea, when I put mine back on i used something similar to locktite as a bit of reassurance. and before anyone goes "OH NO DON'T USE LOCKTITE!!!" i only used a little bit and torqued it properly.
stupid electrical work...
Legacy777
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Post by Legacy777 »

Psychoreo wrote:yea, when I put mine back on i used something similar to locktite as a bit of reassurance. and before anyone goes "OH NO DON'T USE LOCKTITE!!!" i only used a little bit and torqued it properly.
Using the medium strength locktite is fine, and in fact I recommend it, and was told so by a very reputable subie engine rebuilder.
Josh

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