Need a om617 guru. I pulled this motor from a car that had a small fire under the hood and swapped it into a 4x4. got the motor in to find that from idle to 3/4 throttle little to no sponse from ip. full throttle it revs fine. possible fire damage to ip? anything I can check before I swap pumps? thanks guys

Did you transplant a switchover valve too?

It is likely that you are simply not getting enough movement on the Throttle lever on the Fuel Injection Pump.

If you floor the Accelerator Pedal is the Throttle Lever touching the forward stop on the Fuel Injection Pump?

When I first got the Car this was what happend to me just from sloppy linkages.

The Car was scary slow moving off from a stop. Once the momentum built up even on the Freeway it worked normal.

Taking the slop out of My linkages returned it to normal. What was happening is the Linkages were not pushing the Throttle Lever on the side of the Fuel Injection Pump far enough to give it full fuel.

If the Switchover Valve is plugged the ALDA will not get the Boost Pressure from the Turbocharger. The same if the ADLA is not connected to the intake Manifold or the Banjo Bolt at the end of the Intake Manifold that holds the ADLA Tubing to the Intake Manifold is plugged with Gunk.

Might be a good idea to hook up a Pressure Guage (at leas 15 psi gauge) to see what type of Intake Manifold pressure the Turbo is capable of.

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84 300D, 82 Volvo 244Gl Diesel

thanks for the quick response, what's a switchover valve? car was burnt but I don't think I missed and major components

thank you guys. I'll try to look into it tomorrow, I think you guys have fixed it tho, awesome!

fixed it , thanks guys, my line was cracked coming from the intake to the ip

Here is a few threads explaining the ALDA, Switch Over Valve and boost line from the rear of the Intake Manifold.


Switchover Valve & ALDA

OM617 turbo - ALDA boost pressure signal Banjo Bolt and fitting

What is this valve,whats its purpose 85 300SD


Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works