8 replies to this topic

[fuzzypumper]

Ah no you need very low range torque wrench and hex key. 

DO not attempt this with the proper tool or expert advice.

Ive broken a band before the first time i did it because i didnt know enought

[mick_in_oz]

Itty Bitty torque wrench and an allen key adaptor. Torque to whatever and back it out 4.5 turns rings a bell.

 

The place that did the full manual box in my hatch a long time ago said they didn't bother with the torque setting, do it by feel, wind it in till you start to feel additional pressure and back it off 4 turns, same end result, I tried it and compared to the torque method, both work properly, and look to leave the adjustment in the same end place.

[lemonaro]

Use a small 3/8 drive inch pound torque wrench with a 3/16 allen key socket.

Set torque wrench to 40 in pounds. Remember to back off adjusting screw 4 turns after torque wrench klicks off.

Easy job, done hundreds of them back in the 80's and never broke a band.

[axistr]

I think you're all in the ball park on the adjustment. To the best of my knowledge the manual states 35-40 inch pounds back of 3 3/4 turns. If you break a band it must have been a cracked through the band by 99% I have done plenty of Trimatics band adjustments by just using an alen key and going by feel, its relatively easy if your have a feel of what 35 inch pounds feels like, However anywhere between 20 & 50 inch pounds is going to be close enough to get the job done. I always count the turns when winding in the adjustment bolt which gives you some idea of how much wear the band has suffered since the transmission was last serviced, and look carefully in the transmission pan when removed.

 

Tip out the excess fluid and have a decent look what's in the bottom. Dark grey powder is normal but lots of fine powder and metal partials indicated its getting close to the overhaul stage. The common finding of wet clutch pack material in Trimatics means you have a problem. If the transmission is slow to pick up reverse or slips you will generally find clutch pack plate material and the only way to rectify is a strip down.  

[lemonaro]

Another handy tip when servicing trimatics is to remove the filter and either give it a tap on its side to see if any clutch material is in their or if your going to replace the filter cut it open and have a good look in side. You"d be surprised how many times  I removed the pan and it was clean and when you investigate further within the filter I would find clutch material from the reverse clutches.