Timing M110 Djet

[bobtherebuilder]

Hi, can anyone tell me the correct timing at idle, with and without vacuum
for my W114 280CE M110 engine with a D Jetronic fuel injection
and if possible the dwell angle.It`s quite difficult to find info on this model,
I believe it was not exported to the USA .I`m in Ireland so it would be European spec.

[Eirik 400 SE]

Which M110 engine is it ?
M110.921-922-923-924-926 or another one ???

[bobtherebuilder]

Hi Eirik,it`s a M110981-22-007707

[Eirik 400 SE]

Of-course.. This engine is not in my book..

But, the book says that all US model 110'engines seem to be at 10 BTDC on both static and dynamic.. (With vacuum-retard OFF)..
But, the book mainly focuses on 923-984 and 988 engines.. So, I can't guarantee anything...

[bobtherebuilder]

US models are set by emmision regulations,but they didn`t have injection untill the W123
in 1976,mine is a 1973 W114 280 CE English Right hand drive. America only had the
W114 280C with carbs.

[mercmad6.3]

The Americans missed out on that one. The W116 here had the same Djet M110.
check the German /8 ( stracht 8) forums.
/8-Forum
It says this here,
The distributor is adjusted with running engine with 4500 U/Min without unterdruckverstellung (negative pressure hose to take off) to 43 degrees before OT (in /8) or 40 degrees before OT (in the W123). Subsequently, tighten clamping screw for the attachment of the distributor.

[bobtherebuilder]

Hard to do alone, 4,500 rpm and car has no rev counter.That`s why I need timing at idle.

[mercmad6.3]

Originally Posted by bobtherebuilder

Hard to do alone, 4,500 rpm and car has no rev counter.That`s why I need timing at idle.

8-12 BTDC at idle with vacuum connected.
idle is quite high at 750-800 rpm.

[bobtherebuilder]

Thats great ,thank you for the help.Sorry I didn`t get back sooner, I was away on bussiness.