Any Volvo Guys Here?

[brutus87]

A friend of mine is having issues with his 1987 Volvo 740 Turbo, it was running fine when it just suddenly died on the road. It always sounds like it is going to fire right up, but doesn't. The injectors seem to be getting fuel, so I wonder if these cars have some sort of CPS(crank position sensor) like the E30s? If so where? Any help is greatly appreciated, thanks!

[spiDmang]

I assume hes getting spark to the plugs??

[Ryann]

Timing belt?

[brutus87]

He said he was, though hes going to change the coil tomorrow.
Timing belt?
I didnt know those had a belt.

[Danny]

I would say check the knuter valve.

[5Toes]

Take the volvo lip and run..

[djjerme]

http://www.stepbystepvolvo.com/Resources/Volvo%20No-Start.pdf

[EThirty318i]

If i'm not mistaken those had timing chains

[gkobez]

let me talk with the volvo guy here and post back

So I spoke with him that is year is about the time that they switched to a crankshaft position sensor. In which case usually when they cool they should start back up briefly. If not ohm out the sensor and see what you get a lot of the times you will get a sensor that will lose continuity or have stupid high resistance. I don't have a spec but if you are getting a measurement with a k in it thats likely too high. Second check the Fuel pump relay as those are a common fault as well.

[Ryann]

If i'm not mistaken those had timing chains

The '87 740's came with the B230 which has a timing belt. There were also some 16v 740's, can't remember which years but that engine had belt driven cams as well.

[brutus87]

Yea he replaced the coil. still no go.
If it was the timing belt wouldnt you see damage and hear clunking?

[Ryann]

iirc U.S. b230's are non-interference engines, so if the belt's broken all you need to do is reset the cam timing and install a new belt. Crank the engine over while looking through the oil filler hole on the valve cover and see if the cam rotates. If it doesn't you've got a broken belt.