How often should i change my plugs

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chriscburgess
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How often should i change my plugs

Post by chriscburgess »

1.9DG running on lpg the majority of the time apart from starting on petrol in winter. I have done around 4,000 miles since the plugs were last changed 12 months ago.

Its running fine but what i wanted to know was:
when should I change them? or do i need to clean them or just leave them?

Thanks
T25 1984 Westfalia pop 1.9DG

Ian Hulley
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Re: How often should i change my plugs

Post by Ian Hulley »

On my 4,000 service I fit a set of cleaned and re-gapped single electrode plugs. Saving the other set and preparing them for next time. I get a new set of 4 every other year.

Ian.
The Hulley's Bus
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LPG courtesy of Steve @ Gasure

chriscburgess
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Re: How often should i change my plugs

Post by chriscburgess »

Cheers thanks Ian. what plugs would you recommend bearing in mind i'm running lpg.
T25 1984 Westfalia pop 1.9DG

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steve8090
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Re: How often should i change my plugs

Post by steve8090 »

Bosch (+1) WR7DC with a 0.63mm gap (25 thou)
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Ian Hulley
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Re: How often should i change my plugs

Post by Ian Hulley »

From the 'orses mouth so to speak :wink:

Ian :ok
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1989 2.1DJ Trampspotter
LPG courtesy of Steve @ Gasure

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ermie571
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Re: How often should i change my plugs

Post by ermie571 »

oh pooh. Just done two vans and gapped them as per haynes....

is that the same for the 2.1 on LPG 99.9% of the time. We gapped them to .7 or .8. Looks like we was wrong.

Just out of interest, what happens if the gap is too big/too small...how would it affect the running of the van?

ta

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chriscburgess
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Re: How often should i change my plugs

Post by chriscburgess »

Cheers Steve!
T25 1984 Westfalia pop 1.9DG

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Re: How often should i change my plugs

Post by silverbullet »

ermie571 wrote:
Just out of interest, what happens if the gap is too big/too small...how would it affect the running of the van?

ta

xx
You are industrious Em! From memory of my boy-racer days (it's been a while) bigger gap = higher resistance = bigger spark but only if the coil/leads/LT supply/earths will stand it. If they won't then you'll get misfires or poor economy due to unburnt fuel.
Somebody correct me if I'm wrong...
Still running in the gas system on the SA but loving the cheap pump :D
85 syncro Caravelle twin slider Oettinger T3200E-6
90 SA Microbus supercharged wbx/UN1 project

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