I recently picked up a 1980 300SD in New Mexico, had issues with the IP, got the timing close I think and planned on doing the drip timing method next weekend.
Had it running in New Mexico well enough to drive it 1000 miles back home.

When I got it here in Arkansas, VERY sluggish, so I advanced the timing on the IP all the way it would go, adjusted the valves on it and it had the power it did in New Mexico.

While I was out test driving it after adjusting the IP, I was running it up to 3500 - 3800 rpm to see how it would do, blow out anything that might be built up etc, did it twice on the third time (3rd time is the charm eh?) took off from a stop sign first gear to around 3600 and fixing to shift to 2nd when it quit, engine just stopped running and won't start.

While trying to see what might be going on, noticed one of the return hoses going from 3rd to 4th injector was cracked and leaking, so I replaced it and still wouldn't start.
Ideas?



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Replace all filters and prime the system. Sounds like you experienced fuel starvation.

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Is the cam turning?

going to need some diagnostic info before we can have any ideas...first make sure you have motor oil in the sump. Then put the supply and return fuel hoses in a clear tank and fill it with fuel and verify fuel is flowing through the pump. next verify fuel is making it to the injectors, next will be compression test.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
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My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Did you hear any "BANG" noise or did it just quit?

I would open the oil cap and try to turn the engine over to make sure the cam is moving.

I would also to the new hoses to a jar of good diesel to see if it starts.

Doing a "Diesel Purge" won't hurt either. See if it will start and run on DP.

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"I have no convictions ... I blow with the wind, and the prevailing wind happens to be from Vichy"

Current
Monika '74 450 SL
BrownHilda '79 280SL
FoxyCleopatra '99 Chevy Suburban
Scarlett 2014 Jeep Cherokee
Krystal 2004 Volvo S60
Gone
'74 Jeep CJ5
'97 Jeep ZJ Laredo
Rudolf ‘86 300SDL
Bruno '81 300SD
Fritzi '84 BMW
'92 Subaru
'96 Impala SS
'71 Buick GS conv
'67 GTO conv
'63 Corvair conv
'57 Nomad

Sluggishness in 617 turbos is often caused by a problem in the boost control circuit. There's a banjo bolt on the back of the intake manifold. Make sure the bolt and the associated plastic tubing are clean, open, and attached to all fittings.

Check your air filter.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

What kind of damage can way advanced injection timing cause?

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

it just quit, no bang.

I turned the crank and the camshaft moves, I then loosened the lines to the injectors thinking maybe air got into it with the cracked return line, no fuel.

I then unhooked the return line from the IP / return lines to the filter and no fuel there either when cranking it.

I unhooked the exit line on the filter that goes to the IP and used the manual pump and it pumps fuel through, so it would appear the IP is getting fuel, just not pumping it out.

So do I see a new IP in my future?



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Your post is not crystal clear at least to me. If you remove the return line at the injection pump fuel is coming out when cranking? Or not? If not it is not your injection pump.

fuel is not coming out.

My guess is the stress may have taken out the lift pump then. Disconnect the output line from the lift pump. Thats the part the finger pump primer is mounted on and see if fuel squirts out when cranking the engine. When you report what you find with this test others can suggest things.
If nothing is coming out of the lift pump take the input line to it and submerge in a container of fuel. See if pump does or does not pump it.
Another thought was maybe a fuel filters contents where agitated by the unusual increased fuel volume. Might have plugged up. So if lift pump produces flow I might consider them. The worse senario of the timing chain going is not an issue at least. That is great.

Now if the lift pump will not pump fuel with you supplying it with a container of fuel do not leap to the conclusion it is the lift pump. It probably is at that point yet another test has to be done to make sure the lift pump activation system is still there.

it will be tomorrow evening at the earliest that I can look at it again.

I did unhook the output line from the lift pump in messing around with it yesterday and there wasn't any fuel coming out.

If the manual pump pumps fuel through, wouldn't the lift pump pull the fuel through also, thus ruling out the filter? Otherwise I'll unhook the filter and see if pulls fuel through as suggested.

during my 3 hour commute I had lots of time to think about the problem and remembered I had an extra IP that came with the car, that is supposed to be bad. So when I got home I eyeballed the old IP and it has the lift pump on it. It is full of grime from being out in the New Mexico weather, should I clean it up and give it a whirl? Are there other checks I can do on the existing lift pump? i.e. the lift pump activation system.

Thanks

Yes, I believe you are correct.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

You will know for sure when you swap the lift/fuel supply pump.
The lift/fuel supply pump has a spring loaded piston and a rod that rides on the IP camshaft (while the lift pump is off get a light and mirror and take a at the cam the pin rides on).

The pin pushes on the piston against the spring and pumps the fuel out.

The spring pushes the piston back sucking in the fuel. Things that can happen-the spring can break and the push pin some times breaks also. The piston can stick also.
If the problems above happened the hand primer would still work because it is a separate pump.



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84 300D, 82 Volvo 244Gl Diesel