That's right, 57 HP at the rear wheels.

I bought this car about a month ago and aside from the lack of power I am very happy with it. It has 233,xxx miles and is in OK shape.

It made 8.5lb of boost on the dyno and increasing the boost actually caused me to lose power.
I adjusted the ADLA and that did pick the power up a fair amount down low but had no effect on overall power. I have since completely removed it but still get no smoke and no noticeable power increase.

All of the filters have been checked or replaced.
The valves have been adjusted.

I think my injection pump just isn't feeding the motor enough fuel. I'm not looking to make the car smoke but at this point I would like to see some just so I could turn the boost up a little.
Unless someone has some different suggestions I am doing my research so I can turn the pump up to feed more fuel to the engine.

Thoughts?



Greg

Make sure the linkage from the accelerator pedal is pushing the lever on the injector pump all the way to the full fuel stop. They sometimes get sloppy over time and don't go to full fuel when floored.

__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.

Is your tach working?

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85 300D 180k

I have checked the throttle linkage a couple times hoping it would be that simple but I'm not that lucky.

My tach is another issue.
When I bought the car it didn't work, then it fixed itself.?
I was driving along one day and it just started working. Recently it has reverted back to being intermittent. It seems to work under acceleration and decell but is flaky at part throttle. Almost like it has a bad ground that that gets completed when the motor rocks one way or the other.
Why do you ask?


Greg

__________________
85 300D
235,000 miles

Have you cleaned the tank strainer?

__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.

something isn't right with your engine, you should have more than 57 HP at the wheels.

Are you sure the brakes aren't draging.

__________________
1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

RWHP should be around 95 on a well tuned engine I would think.

My headunit in my car can measure it based on inputs of car weight and engine HP...and claims that at max acceleration mine puts down around 92 or so....pretty accurate!

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

It was clean enough to eat off of!

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85 300D
235,000 miles

I'm not 100% sure but that is usually pretty easy to notice on the dyno.
We made at least a dozen pulls when we had it on the dyno. If they were dragging they should have been smoking.

I am also under the impression that with the ADLA removed I should be blowing a little smoke and I have none.

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85 300D
235,000 miles

My OVP was dead even though the fuse was ok. This caused my tach and my turbo to stop working entirely. Apparently on the 85 many things are tied into the tach including the EGR. I'm not sure if plugging the vaccum or otherwise disabling it would get the turbo to function without the electrical issues being resolved. I can only talk about my experience because the 85 electrical system is entirely unique from earlier years.

For me, even when I fiddled trying to disable my EGR I couldn't get the turbo to engage. I put the lines back, replaced the OVP and it immediately worked, blasting smoke power and all.

Again, you may have another issue here. I just know that when my tach died my turbo went with it.

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85 300D 180k

X2 on the throttle linkage. When you checked it..... Did you have someone sit in the car and look at it go to the full stop as they pushed the pedal? Did you visually see it hit the stop?

If the EGR has been operational over all those miles your intake could be plugged up quite a bit too.

Assuming you did the usual things like an air filter, fuel filters and valve adjustment.

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AJ

1985 300D (SOLD)

Yes, someone was in the car with their foot on the floor and the throttle was against the stop.

The EGR is still hooked up. If the intake was plugged wouldn't I have a lot of fuel and not much air resulting in a lot of smoke?

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85 300D
235,000 miles

I would think so.

Ok, new idea. I've heard that sometimes partial vacuum can be supplied to the shutoff valve when it shouldn't be, resulting in lack of power. Try unhooking your shutoff and see what happens.

__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.

It seems to me that we used to call this brake horsepower BWP - this was the horsepower created at the rear wheels after it passed through the tranny and drive train. Is this what you are calling RWHP or is RWHP the correct term?

I believe that BHP is totally diferent from RWHP (I learned this stuff a long time ago, and the memory isn't perfect) and the definitions are: Brake Horse Power refers to a device that 'brakes' (stalls) a bare engine, RWHP refers to the as-installed power, tranny, drive belts, etc connected.

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1984 300 D runs, interior
1984 300 D light hit in front, RUST, mint/perfect dash, decent interior (see above), parts car
(hate to kill one)
1998 Dodge diesel