Evenin’ all

[Exsapper373]

Hi everyone, I’m Nick. I’ve been in and around construction plant for the past 30+ years. We bought a yanmar sv08 a few years back; 2007 model but works great. Paired it with a jcb htd5 which, although great, is difficult to start in cold weather. Do they have glow plugs?
Anyway, hope everyone has had a good Christmas etc.

 

[Bri963]

Welcome to the forum, Nick. What engine is in the dumper? Whatever it is, if it’s got glow plugs there’ll be a bus bar linking them all, somewhere near the injectors. Is there a heater position on the key switch? If yes to both of these put a meter on the battery and see if the heater position drags the voltage down as a rough and ready check.

 

[Giles]

@Gunners used to have one of those dumpers he might know

 

[Regy53]

Welcome

 

[Brendan]

Lombardini in the later ones, not sure if it would be the same in the earlier ones but probably.
I'm sure there is no glow plug, battery only for the starter motor circuit.
Manual has nothing for a glow plug, and not really much help for anything else for not starting only lists battery, starting switch, fuel injector timing/faulty/sticking, clogged filter, air leak, blocked fuel line or engine problems such as loose cylinder lock nuts/valves sticking or worn rings

 

[Gunners]

As Brendan says, mine didn't have a glow plug either. Just used to use plenty of throttle and crank that bitch!

 

[Giles]

On really cold days up north I get the blow torch on the inlet manifold give them all the help you can

 

[V8Druid]

On really cold days up north I get the blow torch on the inlet manifold give them all the help you can

yeh you won't beat hot air into it's lungs for cold starting (other than ether but not recommended, unless you use it lit as a flame thrower )
little blow lamp works miracles ... but might wanna lose (or bypass) the air filter first .... 'fore you torch it

 

[Rob65]

I have a small generator with a single cylinder Lomberdeni engine similar to the ones used in the HTD5 dumper. It only has a manual start.

All that’s usually necessary is to lift the decomposition leaver and pull it over. After the first revolution of tjecrank the decompressor automatically disengages and it fires up.

I’ve been told that if these engines are allowed to run for too much time ticking over the cylinder bore glazes which causes low compression and makes them hard to start.

I have one which I think is suffering from this problem sitting on the bench for the last 6 months but haven’t found time to have a look at it yet.

 

[Bri963]

Not good for any small engine to idle too long. However, if you’ve got glazed bores you’ll have a continuous dribble of blue smoke and higher than usual oil consumption.

 

[Giles]

Not good for any small engine to idle too long. However, if you’ve got glazed bores you’ll have a continuous dribble of blue smoke and higher than usual oil consumption.

ive a wacker dpu 100-70 which has a Lombardini Engine type: 12 LD 477 and its smoking and using oil.

is it an dismantle and new bores and piston job then?

g

 

[Bri963]

Not necessarily. You’ll need to have a look but it might just need new rings and the Bore honing. Possibly stem seals on the valves. As I say, though, you never know until you get the head off.

 

[V8Druid]

as said ..... rings and a glaze buster

 

[diggerjones]

ive a wacker dpu 100-70 which has a Lombardini Engine type: 12 LD 477 and its smoking and using oil.

is it an dismantle and new bores and piston job then?

g

Vim

 

[Monkeybusiness]

Vim

I’ve heard that (and Ajax) suggested for glazed bores a few times - has anyone ever dared try it or is it just a tale to trick the gullible into totally destroying their engine?

 

[Mogman]

I’ve heard that (and Ajax) suggested for glazed bores a few times - has anyone ever dared try it or is it just a tale to trick the gullible into totally destroying their engine?

No it works you should try it on one of your engines

 

[V8Druid]

tub of valve grinding paste warmed up and poured into a hot engine's sump ..... won't need to worry about glazed bores in about twenty minutes

 

[craig]

tub of valve grinding paste warmed up and poured into a hot engine's sump ..... won't need to worry about glazed bores in about twenty minutes

Do you use the course or fine end

 

[JD450A]

Vim works a treat.

 

[GazCro]

Vim works a treat.

Really? Cos the lister in me 3 ton benford smokes a bit from spending too long sitting ticking over but I'd rather it smoked a bit than died