W123 300CD OM603 swap. The Sketchy Coupe *Now with more OM606!*
W123 300CD OM603 swap. The Sketchy Coupe *Now with more OM606!*
Ended up breaking cylinders 5 and 6 glow plugs. I attempted to extract both without success. So I decided to compresion test 1-4. If they're good I'll keep it and get the machine shop to extract those two glow plugs. If' not I'll bring her back to the scrapyard and keep looking for a good donor.
Well here are my test numbers using the glow plug holes, a spare battery connected to the starter, a battery charger set to 50A on the battery, and a screwdriver to jump the starter. It turned over sooo slow, so I hope that has something to do with the terrible compression numbers. I did not add oil or anything, just screwed my adapter in to the glow plug hole and turned it over.
#1-200psi
#2-220psi
#3-200psi
#4-150psi
I really hate to call this thing toasted, because they're somewhat difficult to get here in the US. This one was dirt cheap, About $300 for the engine and trans. I figure including purchase price, I can rebuild top and bottom end and still not go over $1.5k which is what I'd expect to pay for a wrecked 98-99 w210, or importing a good used engine. I don't have a leak down tester that will fit my glow plug adapter, but I may have to rig something up or at least pull the oil pan and valve cover to see if this thing is even worth salvaging.
Any thoughts, recommendations?
![[Image: ESF8xGWh.jpg]](https://i.imgur.com/ESF8xGWh.jpg)
![[Image: PZafDWdh.jpg]](https://i.imgur.com/PZafDWdh.jpg)
![[Image: NZFq9Twh.jpg]](https://i.imgur.com/NZFq9Twh.jpg)
Granfatherglock
07-14-2018, 03:49 PM #5Finally got around to compresion testing my boneyard om606. It didn't go well.
Ended up breaking cylinders 5 and 6 glow plugs. I attempted to extract both without success. So I decided to compresion test 1-4. If they're good I'll keep it and get the machine shop to extract those two glow plugs. If' not I'll bring her back to the scrapyard and keep looking for a good donor.
Well here are my test numbers using the glow plug holes, a spare battery connected to the starter, a battery charger set to 50A on the battery, and a screwdriver to jump the starter. It turned over sooo slow, so I hope that has something to do with the terrible compression numbers. I did not add oil or anything, just screwed my adapter in to the glow plug hole and turned it over.
#1-200psi
#2-220psi
#3-200psi
#4-150psi
I really hate to call this thing toasted, because they're somewhat difficult to get here in the US. This one was dirt cheap, About $300 for the engine and trans. I figure including purchase price, I can rebuild top and bottom end and still not go over $1.5k which is what I'd expect to pay for a wrecked 98-99 w210, or importing a good used engine. I don't have a leak down tester that will fit my glow plug adapter, but I may have to rig something up or at least pull the oil pan and valve cover to see if this thing is even worth salvaging.
Any thoughts, recommendations?
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