W123 OM617 Injector pump swap

trythistv
trythistv
2,030
0
Published 2024-01-14
What started as a misfire diagnostic quickly became an injector pump swap.
But at long last my car no longer misfires after a drive at highway speeds.
This is the longest video I've ever uploaded by a lot. Hope you enjoy and it makes sense!

This procedure is covered in 07_1-200.pdf and 07_1-201.pdf of the Factory service manual depending on if you use the timing locking tool or not.

Here are some of the special tools I used to do this:
➡ Timing tool: ebay.us/ITUzZp
Piezoelectric timing adapter: (Sealey TL95 and Gunson 77089 are the same):
➡ amzn.to/41WiNRj
➡ ebay.us/DeYSoV
➡ ebay.us/MPLcrn
➡ Innova 5568 Timing light: amzn.to/48BfVMj


Here are the more generic tools:
➡ 17mm Wrench: amzn.to/3SglObW
➡ 90 tooth 13mm (This would have been amazing with the finer tooth count): amzn.to/47vPOoF
➡ 13mm socket: amzn.to/3TYOOGx
➡ 3/8 Ratchet for socket (not a wobbly one): amzn.to/3vwqZf4

0:00 Intro
2:37 Diagnosis
3:41 A decision
5:33 Complications
6:30 Removing IP
12:04 Trade lift pump, etc
14:00 Install "new" IP
16:27 Brand new delivery valves
19:00 Testing for fuel
20:33 Cat scan
21:14 Cursing drowned out by engine noise
23:34 Fixing what caused the runaway
25:59 Trying to start again
26:55 Checking timing with piezo tool
29:30 Where I went wrong with timing
30:40 Timing corrected
31:50 Car runs good

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All Comments (15)
  • @trythistv
    Here are some of the special tools I used to do this: ➡ Timing tool: ebay.us/ITUzZp Piezoelectric timing adapter: (Sealey TL95 and Gunson 77089 are the same): ➡ amzn.to/41WiNRj ➡ ebay.us/DeYSoV ➡ ebay.us/MPLcrn ➡ Innova 5568 Timing light: amzn.to/48BfVMj Links here are most likely affiliate links, should you choose to purchase from one of them, I may earn a small commission for referring you to the seller. And, this is done at no extra cost to you!
  • @light12a
    Brilliant! I've been through the same issue you had. My delivery valves were corroded on a couple. I eventually swapped outthe 84 pump for an 85 that came from low mileage vehicle. Coinceentally, the timing chain seemed stretched, so I replaced that and retimed it using the drip method with a pressure tank. Definately smoothed the idle out as it was very similar to yours before the swap. To further tweek it, I let the car get to temp, then backed off the injection pump damper. I then adjusted the idle until it was as smooth as possible. From there, I THEN tweaked the damper until the vibration went down further. I experienced the same issue you have - after engine gets warmed up, it starts to shake at idle after some highway driving. But it is not nearly as bad as it used to be.
  • @CrToloss
    You're amazing.. Thank you..!!
  • @nutragardens6632
    Have the same problem ... It just skips a beet sometimes when it's hot .
  • @Bradwick1
    Pierre Hedary recently addressed this issue with the cylinder sleeve. There are replacements and they have to be brass.
  • @estefanofanhani
    Não assisti todo video. Vou assistir com mais tempo. Porém estas válvulas de entrega tem uma pequena e impressindível regulagem. Somente em oficina especializada de bomba injetora . São estes 2 parafusos do lado de cada válvula. Não basta somente substituir.
  • @bluehulk13
    Do you know if the engine is remanufactured? The ridged line on the valve cover apparently indicates so, according to Uncle Kent.
  • @siamak1
    Thanks for the video. My 300TD wagon shakes while idling at the light when is in D but if I put it in N shaking does stop. Wonder what needs to be done other than purge fuel systeml and other usual services.