Engine judder poor acceleration.

Message

HARTLEY04 · #1 Post by **HARTLEY04** » Thu May 31, 2018 4:44 pm

Fitted a new distributor and electronic ignition, my timing was 4 degrees after TDC it is now back to 10 degrees before TDC my problem is it still runs poorly hard to start and when I accelerate it sort of judders I have had a couple of short runs but its just not right, ideas, please.

marko · #2 Post by **marko** » Thu May 31, 2018 4:59 pm

Cheap Chinese distributor? £23 ignition unit? Before I go on about my loathing for them, how was it running beforehand? What engine are you working with?

HARTLEY04 · #3 Post by **HARTLEY04** » Thu May 31, 2018 5:19 pm

1500HL, it was running about the same.

Toledo Man · #4 Post by **Toledo Man** » Thu Jun 21, 2018 12:39 pm

I've moved the thread here because it is a technical question.

to the OP: Have you tried advancing the timing. 10 degrees before TDC is just a starting point and was for 4 star petrol. What grade of fuel are you using? It might run better with 98 RON fuel such as Shell V Power.

tony g · #5 Post by **tony g** » Thu Jun 21, 2018 2:56 pm

Sounds like its running on 3 cylinders. If it idles pull the plug leads of the plugs one at a time and see if theres one cylinder that doesnt change ie doesnt reduce rpm. If you find a suspect cylinder check the plug and lead to it and maybe do a compression tesat with all plugs removed (remove + leads from the coil for that test)

Tony

yorkshire_spam · #6 Post by **yorkshire_spam** » Thu Jun 21, 2018 3:15 pm

What colour are the plugs after it's been running? Are any of them wet? Black? Clean?

The Triumph Dolomite Club - Discussion Forum

Engine judder poor acceleration.

Engine judder poor acceleration.

Re: Engine judder poor acceleration.

Re: Engine judder poor acceleration.

Re: Engine judder poor acceleration.

Re: Engine judder poor acceleration.

Re: Engine judder poor acceleration.