Mymechanic says he needs schematics for my 88 volvo 740 he replaced timing belt says cant set timing without them help

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Hello. i have owned many 740's, 240's, 122's, and 850's. I have done my fair share of transmission swaps. The transmission tag is located right above the trans-oil pan and directly below the od seloind on the drivers-side. if your volvo 740 is a non-turbo, the transmission is AW-70L, if it is a turbo-model then it is AW-71L. Good luck :)

without manuels the code i cant tell you..check the timing belt. they like to break when you shut engine off when the belt is worn out

There should be a metal plate on the left side of the trans with the part number.

on the bottom belt pully at a 5 o-clock position

The squeeling nose is a loose or worn out power steering belt have you mechanic replace and tighten the belt, most of the time the heat shield fastener or mounting hole has rusted out and no tuely effective repair can be performed

Replace your brake light switch,also just replace the brake light fuse,sometimes they can have an very small crack in it,they you cant see.

It is a right hand thread and you usually need an impact gun. Take the fan out of the way, to give you more room, I have found that helps.

The problem wont be your timing belt. you need to take out a spark plug plug it into your HT lead and check for a strong spark or even if there is a spark. check your contact breakers on the distributor as well

Horrible squeal. If my 740 made a horrible squeal I would be upset also. These ideas - timing belt has somehow slipped out of time. Easy check. One of the other belts are slowing the engine any of them can squeal: The alternator belt The power steering belt The fan belt. Does the noise occur only when driving? Does the engine sound normal when revving in neutral? Does turning on the lights or a/c affect the noise? Does the power steering work when car is standing? Is the squeal heard when turning the wheels. A logical diagnosis will identify and eliminate these easy to fix problems.