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+--- Thread: Om604 with 601 pump issues. (/showthread.php?tid=5477)
Om604 with 601 pump issues. - GeorgeHasmanda - 03-28-2014
(03-27-2014, 05:58 AM)offroaddieselhu Hi,I have problem.I have OM604(w202 220D with lucas pump) and now i have om601 pump on this engine.but I not runing good.I was 15 ATDC.Good start and run,but much white smoke and idle is horrible.10,20 ATDC it was same.Now i running 14 BTDC.not good start,but engine runing when idle so littble bit hard,some black smoke and high rpm not much white smoke when before.Injectors are good.pressure is 110-115bar.But injectors are original for rotary pump.om601 pump is from w124 200D,same injectors pressure 115bar.Om601 pump is stock.I'm desperate.please help THX
I've made this engine about 6 years ago. This is a socalled basic engine, that has 0.9-1 mm ATDC.
If I'll make the new I'll messure the new setting and I'll writte you.
Offroaddieselhu
RE: OM 606 building 4x4 bugy - Tito - 03-29-2014
Rotary pump injectors and inline pump injectors don't mix. They have different kind of needle lift I thought.
RE: Om604 with 601 pump issues. - MFSuper90 - 03-29-2014
(03-29-2014, 01:03 AM)Tito Rotary pump injectors and inline pump injectors don't mix. They have different kind of needle lift I thought.
The lift part is a possibility, but I don't think it should matter too much as long on the pop pressures are set correctly for either a rotary or inline. Too much injector pressure on a rotary will junk it real quick
RE: Om604 with 601 pump issues. - Tito - 03-31-2014
I have some brand new injectors laying around here. But no pop tester. I'm quite curios what's the difference. I can not imagine the difference in pop pressure result in a totally different Bosch number.
![[Image: FE940430-3F4C-4330-917A-700080D94A03.jpg]](http://s1267.photobucket.com/user/Titotyfus/media/FE940430-3F4C-4330-917A-700080D94A03.jpg.html)
Left is from a VW 1.6 turbo diesel and right is from the Mercedes 601/2/3 n/a engines. Can't find a whole lot of info on the VW injectors. They look exactly the same
RE: Om604 with 601 pump issues. - Petar - 04-19-2014
Have you swaped pump sprocket from the OM601? The one with automatic advance of timing at higher rpm