running on

Batteries, Alternator, Wiring, Lighting, etc. (Please discuss ignition problems in the Engine category)
Post Reply
Message
Author
red2000chris
Senior Member
Senior Member
Posts: 405
Joined: Mon Apr 23, 2012 7:18 pm
Location: taunton. somerset

running on

#1 Post by red2000chris » Sun Apr 26, 2015 10:58 am

when I first got my 2000, I fitted champion n9y plugs, and sometimes in summer it would run on after a long run when turned off. ive just changed the plugs at service to ngk bp6es as they should be cooler than 5es to try to stop over run....they are worse than the champion ones! even after driving to work 10 miles, when I get there it runs on every time for about 3 seconds! do I need bp7es?
"life is great.....but no longer with a 2000

johnnydog
Senior Member
Senior Member
Posts: 1002
Joined: Tue May 14, 2013 12:33 pm
Location: Lancashire

Re: running on

#2 Post by johnnydog » Mon Apr 27, 2015 9:51 am

What makes you think that the plugs are the cause?
I understand that running on is usually caused by a high engine temperature (ie incorrect thermostat or the engine running too hot due to inadequate cooling), incorrect timing or an incorrect mixture, or a too high idle speed.
If the engine is correctly setup, it should not run on even with modern fuels that I believe burn at higher temperatures than our cars were designed for. I have never had any problem with running on using the standard N9Y or equivalent in my Mk1.
Register Member no. 1596

1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

Mike Stevens
Site Admin
Site Admin
Posts: 3462
Joined: Mon May 08, 2006 9:50 pm
Location: South Oxfordshire, UK

Re: running on

#3 Post by Mike Stevens » Mon Apr 27, 2015 11:56 am

I've had running on issues before, especially with modern fuel. I have found that having the carbs set slightly richer helps quite a lot, probably as it cools the plugs better.

Cheers,
Mike.
(South Oxfordshire)
Register Member No 0355
1971 2.5PI Saloon Sapphire blue
1973 2.5PI Saloon rust some Honeysuckle
1973 Stag French blue
(1949 LandRover was blue should be light green!)

User avatar
johnconradlee
Senior Member
Senior Member
Posts: 347
Joined: Thu Jan 01, 1970 12:33 am
Location: Havant, Nr Portsmouth, England

Re: running on

#4 Post by johnconradlee » Mon Apr 27, 2015 12:05 pm

Check everything John says above. If you're getting running on in not especially hot weather I'd be suspicious there's something up. The idle speed makes quite a big difference as does the carburation.
That said I was getting running on on a hot summers day so I'm now running BP7ES on my Mk1, which seems to have just about fixed the running on that I was having and the plugs aren't fouling even in the depths of winter.
John Lee

1966 Triumph 2000 Mk1 "LuLU" (the Lee family Triumph) - various shades of Green - Currently on SORN. Requires the engine sorting and a bit of bodywork (blooming rust! :evil: ).

red2000chris
Senior Member
Senior Member
Posts: 405
Joined: Mon Apr 23, 2012 7:18 pm
Location: taunton. somerset

Re: running on

#5 Post by red2000chris » Fri May 08, 2015 7:04 pm

I stood behind it the other day and noticed how rich it seemed to smell, so ive booked her in for a carb balance and tune. its been nearly 2 years since the last.
"life is great.....but no longer with a 2000

johnnydog
Senior Member
Senior Member
Posts: 1002
Joined: Tue May 14, 2013 12:33 pm
Location: Lancashire

Re: running on

#6 Post by johnnydog » Tue May 12, 2015 11:46 pm

Once carbs are correctly tuned and the mixture is correct, then they really shouldn't need adjusting for some considerable time. If the last tune was only done two years ago, and the mixture was correct then, I would be looking elsewhere than the carburettors. Hopefully, however, this time it will be done properly!
Register Member no. 1596

1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

red2000chris
Senior Member
Senior Member
Posts: 405
Joined: Mon Apr 23, 2012 7:18 pm
Location: taunton. somerset

Re: running on

#7 Post by red2000chris » Thu May 21, 2015 8:35 pm

ive got an aftermarket rev counter which reads about 800 rpm once warm on tick over but sounds slower. might try turning it down a bit and see.
"life is great.....but no longer with a 2000

wild bill
Senior Member
Senior Member
Posts: 508
Joined: Fri Jul 04, 2008 9:30 pm
Location: Kirkintilloch,nr.Glasgow.

Re: running on

#8 Post by wild bill » Sat May 23, 2015 11:23 pm

Just a thought,but is your "aftermarket"rev counter set for 6 cylinders and not 4?
Worth a look?
Bill Young
1967 MK1 2000
MSS8E
1971 minivan
IUI1588
1981 minivan
TDS40W--Now PMY 453W
1962Greeves Sports Tourer 24DC
114 GGD
1998 Honda CB750, Deep Candy Apple Red.
13500 Miles
R191DVR

red2000chris
Senior Member
Senior Member
Posts: 405
Joined: Mon Apr 23, 2012 7:18 pm
Location: taunton. somerset

Re: running on

#9 Post by red2000chris » Sun May 24, 2015 5:01 pm

remember setting it at 6 when I fitted it. good thought. :wink:
"life is great.....but no longer with a 2000

red2000chris
Senior Member
Senior Member
Posts: 405
Joined: Mon Apr 23, 2012 7:18 pm
Location: taunton. somerset

Re: running on

#10 Post by red2000chris » Sun Jun 07, 2015 4:49 pm

tune up now done. wasn't too far out with balance, slightly rich and tick over now set at 625!! rpm. drive nice and crisp now but seems to rely on the choke for longer now but that's fine. I didn't think £60 was bad either.
"life is great.....but no longer with a 2000

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest