Login | Register
SearchMy Stuff
My ProfileMy PreferencesMy Mates RSS Feed
Reply to Topic
Author Discussion

swiftpete

Original Poster:

1,768 posts

76 months

[news] 
Friday 21st October 2011 quote quote all
Hi, I have just acquired a mercedes vito 108d, with at least one knackered glowplug. Ultimately I intend to get them replaced, but for now cold starting is a bit of a problem. Can anyone offer any advice on how to get round this? I remember when I was a kid my dad used to light some newspaper and try to warm the engine up with that to aid starting. Even at the time I thought it was pretty ridiculous though. Any other suggestions? I don't mind having a go at replacing them myself when I can, I've read a lot of the time on these vans it's a head off job though as apparently they snap 'like a carrot' when trying to remove them, so I've read anyway, so I'm a bit reluctant.
Cheers,
Pete

stevieturbo

9,614 posts

130 months

[news] 
Friday 21st October 2011 quote quote all
You could buy an engine pre-heating kit. That heats the water in the cooling system up to a warm temperature, so in essence it's always a warm engine.

Common in very cold climates.

Hardly a cheap solution either. But the heater will work right away if that's a added bonus lol

A Potato

1,739 posts

40 months

[news] 
Friday 21st October 2011 quote quote all
You could try operating the glow plugs 2 or 3 times before you start cranking, but ultimately you're gonna need a good strong battery to keep it cranking! You'll probably end up wearing your starter out too.

powerstroke

2,570 posts

43 months

[news] 
Friday 21st October 2011 quote quote all
swiftpete said:
Hi, I have just acquired a mercedes vito 108d, with at least one knackered glowplug. Ultimately I intend to get them replaced, but for now cold starting is a bit of a problem. Can anyone offer any advice on how to get round this? I remember when I was a kid my dad used to light some newspaper and try to warm the engine up with that to aid starting. Even at the time I thought it was pretty ridiculous though. Any other suggestions? I don't mind having a go at replacing them myself when I can, I've read a lot of the time on these vans it's a head off job though as apparently they snap 'like a carrot' when trying to remove them, so I've read anyway, so I'm a bit reluctant.
Cheers,
Pete
i would try testing them find out which ones are u/s and try and remove I think its te CDI engine that is a PIA for plugs and injetors Make sure the oil is clean and the lowest viscosity alowable clean thin oil helps by incresing cranking speed the faster it spins the more heat from compression you get, so it will start better if it spins faster And the newspaper trick works better with a little diesel on a rag wraped round a stick , take of the air pipe to the manifold have an asistant ready to crank it when you light the rag and hold it near the inlet so it sucks the flame in thumbupdriving

Tony427

1,153 posts

116 months

[news] 
Friday 21st October 2011 quote quote all
Wouldn't a squirt of "easy start" or the aussy version "Start ya bd" work better than burning rags and expensive engine heating systems?

I wouldn't want to make a habit of sticking highly volatile gasses and ether down an oil burner but I remember in my youth starting an old diesel tow truck using this method.

Cheers,

Tony
Advertisement

annodomini2

5,071 posts

134 months

[news] 
Saturday 22nd October 2011 quote quote all
I'm not saying this is a good idea, but...

Heat the glowplugs up with a gas torch??

(Would suggest waiting for follow up replies before trying this!!)

Max_Torque

7,488 posts

100 months

[news] 
Saturday 22nd October 2011 quote quote all
You need to do one of two possible things:

1) increase the temperature at the point of injection by heating the intake air charge (recommend a hot air gun rather than buring newspapers etc! lol)

or

2) Use a fuel that has a lower ignition point (like easy start)



The problem with either technique is that with modern diesels there is a lot of stuff that can be damaged (primarily the MAF meter) If your hot air gun has a "cool" setting that is less than 100degC, then you could use this to warm the intake air (how you get this air into the airbox i'll leave up to you)

adyady1066

140 posts

67 months

[news] 
Saturday 22nd October 2011 quote quote all
Have you checked the length of pre-heating yet? I had a vito that had a control relay that was iffy and wouldn't get enough heat into the glow plugs from the ignition. Check there's a feed of 5-10 seconds with a test light before you start taking the thing apart and force feeding it with foreign fuels.

And if you do take them out make sure the engine is running red hot when you do. If they are old and worn out it's a certainty they'll be stuck fast and could snap when you try to spin them out. That'll lead to more dramas than you'd ever believe!!! get an impact gun on them if possible or jerk them rather than a gentle turn. If they're stuck they are likely to twist and snap with slower movements.

Even if you have one or two not working fully it should give you enough heat in the chambers to at least get a fire on one or more cylinders. Check for the colour of smoke when you start it up. It's a good sign of unspent diesel pouring out. wink

one eyed mick

830 posts

44 months

[news] 
Wednesday 26th October 2011 quote quote all
Your can do allsorts of things to make a recalsitrant deisel start from cold .If it has glow plugs and they don't work you must go through the whole circit to check operation ,genarraly speaking it's the plugs that fail,in 45 years +yrs working on deisels I have never snapped a glow plug off but also never used an impact tool on one either ,patience ,correct tooling and lots of penetrating fluid have always worked apply gentle heat if practical ,remove when engine is warm [if you can get it started ]I hope you are able to cure you probs and am sure it will be just the plugs ,Easy start or it's freinds are really emergency steps that can lead to other probs so use sparingly,fix it correctly and it should last many K of mileage ,do nothing or bodge things leads to pain in both head and wallet

NHK244V

2,059 posts

55 months

[news] 
Sunday 30th October 2011 quote quote all
Good luck with the plugs mate i had one in that took days to get the dam things out mad mind it was a well abused vito, we soaked them for days, ran the engine up ect and one still took 6 hours to get out, how we laughed frown
Especialy check the oil is not ni on solid when cold, it really helps on cold temp starter speeds, i've had some where you remove the sump plug (cold) and nothing came out! we had to get a blow torch on the sump to get the oil to flow (non runner at the time) eek
Reply to Topic