tony1973 · Jun 21, 2011

hi guys advise needed

p38 1995 with a starting problem how long should it take for the glow plug relay take to click in reason i ask is because my rr does not like top start untill i wait for the relay to click it normalt takes about 15sec is this normal or should i buy a new relay and how do i know if glow plugs need changing

thanks

wammers · Jun 21, 2011

tony1973 said:
hi guys advise needed

p38 1995 with a starting problem how long should it take for the glow plug relay take to click in reason i ask is because my rr does not like top start untill i wait for the relay to click it normalt takes about 15sec is this normal or should i buy a new relay and how do i know if glow plugs need changing

thanks

From cold the glow plug lamp should light as soon as you turn ignition on and stay lit for around seven seconds whilst fuel pump runs and glow plugs heat, then go out. No glow plugs when engine is hot.

Datatek · Jun 21, 2011

You can actually hear the glowplug relay click from inside the car? I can't on mine.

tony1973 · Jun 21, 2011

wammers said:
From cold the glow plug lamp should light as soon as you turn ignition on and stay lit for around seven seconds whilst fuel pump runs and glow plugs heat, then go out. No glow plugs when engine is hot.

all of the above if i try to start when glow plug goes out it tturns over trys its hardest to start.... but if i wait a little longer for the relay to click it will start stright away ..

SADDLESORE · Jun 24, 2011

i have to turn the glow plug on for 3 times before i start then everyone has to stand well clear of the resulting black smoke !!! LOL

roddy4 · Jun 24, 2011

SADDLESORE said:
i have to turn the glow plug on for 3 times before i start then everyone has to stand well clear of the resulting black smoke !!! LOL

get some new glow plugs tight arse

if they are new check connections,and relay

dogsbody · Jun 24, 2011

SADDLESORE said:
i have to turn the glow plug on for 3 times before i start then everyone has to stand well clear of the resulting black smoke !!! LOL

I wonder how few of your glow plugs are actually working?

dogsbody · Jun 24, 2011

tony1973 said:
all of the above if i try to start when glow plug goes out it tturns over trys its hardest to start.... but if i wait a little longer for the relay to click it will start stright away ..

Sorry mate

I've read this several times but I still can't get my head round it.

You turn on the ignition - the glow plug light comes on - after about seven seconds the glow plug light goes out - you then reckon that there's another seven/eight second wait before the glow plug relay clicks.

As always with these cars I've still got a lot to learn but I'll be astonished if the glow plug light is not controlled by the glow plug relay. Are you sure that it's the glow plug relay that you can hear?

Is it possible that you've got another issue like a weak in-tank pump, porous leak off pipes or something that delays the starting?

And to add what is rapidly becoming my mantra on here, please adjust your personal settings to give us a clue where you are. There might be a helpful P38 wizard living locally to you but you'll never know unless you tell us where that is.

SADDLESORE · Aug 29, 2011

I will have you know i have had 2 sets of shiny new glow plugs put in since i have owned it, 18 months !!!!!! and the turn on 3 times came from 2 other p38 owners who have been through this malarky...
Have found kicking the tyres , beating bonnet with large branch etc,though quite futile !
Still i can't complain cos the resulting black smoke has sorted my greenfly problem.. !!!
Am also pleased you find my arse tight ... was worried it was getting a little saggy ..

tony1973

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wammers

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Datatek

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tony1973

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SADDLESORE

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roddy4

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dogsbody

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