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Engine Specific Info and Questions => IDI Engine => Topic started by: Stu92 on May 30, 2018, 12:27:02 pm

Title: 1.6D NA Running poorly
Post by: Stu92 on May 30, 2018, 12:27:02 pm

Hi,

I'm hoping an expert on here might be able to help me with my problem.

I have a 1985 1.6D NA Van and can't get her to run tidy.

To get her to start I have to crank the engine for a long time, then to get her to idle I have to keep my foot on the accelerator for a long amount of time. Then even when she's idling she sounds quite rough with a lot of white smoke. Then if I hit the accelerator hard and let go it will stall.

I have good compression on all cylinders and have performed a leak down test which showed no issues.

I'm guessing injectors or pump but how would I diagnose?

Title: Re: 1.6D NA Running poorly
Post by: Tmarkle on May 30, 2018, 04:18:00 pm

Is the timing set properly??


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Title: Re: 1.6D NA Running poorly
Post by: Stu92 on May 30, 2018, 04:22:49 pm

Quote from: Tmarkle on May 30, 2018, 04:18:00 pm

Is the timing set properly??

Hi, I set it at 85 mm.

Title: Re: 1.6D NA Running poorly
Post by: sgnimj96 on May 30, 2018, 07:33:14 pm

If you're lucky it's just lack of fuel.     Put clear fuel line into and out of the pump, and report back.   

Title: Re: 1.6D NA Running poorly
Post by: ORCoaster on May 30, 2018, 11:04:23 pm

You might put the timing up to 92 mm and see if that helps.  With the age that pump might be a bit worn and engine could use the advance of a few mm's. 

Actually it sounds like you need to do a retime, idle adjust and perhaps a fuel adjustment as well.

Basic Tune is all.

Title: Re: 1.6D NA Running poorly
Post by: Tmarkle on May 31, 2018, 12:11:01 am

I had a 1.5 that was running awful, took ORCoaster’s advice and gave the timing a good bump. It ran better than my 1.6! My pump was slightly modified, but the idea stands that these little diesels are very sensitive to timing.


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Title: Re: 1.6D NA Running poorly
Post by: libbydiesel on May 31, 2018, 01:15:36 am

180° out of time?

Title: Re: 1.6D NA Running poorly
Post by: Stu92 on May 31, 2018, 04:03:24 pm

Quote from: libbydiesel on May 31, 2018, 01:15:36 am

180° out of time?

Sorted, thanks! Injector pump was 180 out. I should have added this was after having the engine out for major surgery.

Just need a bit of fine tuning now I think since there is a slight knock.