Evidently my other messages did not get thru the posting. Other than the location of the distributor there are three basic differences between the B230 engines used in the 1990 740 Turbo and the 1989 240 NA. The compression being the most obvious. No, I did not try to install the NA engine with a turbo. Personally I do not like Turbos although they give better performance. I have had them leak oil undetected through the exhaust and run the engine dry of oil without notification, and they put additional stress on the engine. 2nd, the 240 engine does not have the same holes in the block for the oil filter, which is not critical as the standard 240 filter may be used. The EGR valve assembly is mounted at the rear of the engine on the 740. It can be mounted at the same place on the 240, but you have to obtain a different exhaust manifold in order to attach it. The EGR is not a critical item with the possible exception of the electrical connection, which I am not sure what effects it will have, but I do not believe that is the cause of the problem.

The injectors for the 240 are of a different color, but I am not sure what that signifies as they seem to be working with the 740 controller. However, the only EZL controller that would work was the original 740 and not the 240. And that one is very difficult to R&R except for midget mechanics.

I had a 1973 fuel injected Volvo that suffered grounding problems and that may be the problem here, but the engine is grounded by two straps at the cyl head, and I think there were, at least, two others. So grounding should not be a problem unless it is thru an independently grounded connector which could be corroded.

If this doesn't work itself out soon I think I will yank it out and replace it with a Mercedes 240D engine. I like diesels, but not the six cyl Volvo diesel. Structurally it was too weak. I have also considered using a Peugeot diesel engine I have which beats them all hands down. End of story.