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Rescuing a "broken" D6 8U

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1 year 6 months ago #248127 by trainzkid88
yes you can go 6 tonne on the steer and 16.5t on the bogie drive for a gross of 22.5tonne they will grant approval for a extra half tonne for a total of 23 using concessional mass rules.
you can the tow a 115 tonne bogie axle pig trailer if you have a suitable tow hitch.
just remember the book values are DRY so she probably weighs a extra half tonne when wet. well our d4 holds almost 45kilo in coolant might be a idea to drain them off as your going to put fresh stuff in anyway. or come for the blade on a second trip.
the scalies wont accept "oh shit i didnt know"
The following user(s) said Thank You: LangdonStevenson

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1 year 6 months ago - 1 year 6 months ago #248132 by Deas Plant.
Hi, trainzkid88
Quote:
"you can the tow a 115 tonne bogie axle pig trailer if you have a suitable tow hitch."
Unquote.

ONE HUNDRED AND FIFTEEN TONNES???????????????????????????????????????????

Onna bogie axle pig trailer???????????????????

That'z more-n some road trains pull.

D'yer think yer might have 1 too many 1s there?

For the 'pore, UN-eddicated top-siders' among us, pintle hitches are almost NON-existent among heavier trailers DowNunda. Almost everything heavy for full trailers is Ringfeder couplings:

www.ringfeder-rf.com/en/products/couplin...-rf50-ab/?v=15990578

Or Bartlett Ball for pig trailer combinations:

integratedtowingsolutions.com/trailer-co...ngs-and-accessories/

Unless they have changed things without my permission while I have been out of the country.

Just my 0.02.

You have a wonderful day. Best wishes. Deas Plant.
Last edit: 1 year 6 months ago by Deas Plant.. Reason: Add Info.

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1 year 6 months ago #248150 by LangdonStevenson
Hi Trainzkid - yes draining the fluids (which will be replaced anyway as you say) wouldn't hurt. If there's any question though the best thing would be - as you said - to drop the blade off and make two trips.

Now I just need to go get my heavy rigid license...

212 grader, 301.5CR excavator, 226B3 skid steer (and fingers crossed a D6 8U coming my way soon!)

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1 year 6 months ago - 1 year 6 months ago #248160 by trainzkid88
bloody typo. its 15 tonne. and yes deas they still use bartlett ball or ringfeeder. pintle hitches are rare. lately my typing has been bloody terrible. good thing im getting new glasses.

if youy want to make the eyes boggle have a look at the NHVR's list of approved general access combinations.

they're now running "super b doubles" on the bruce highway into port of brisbane with shipping containers. in reality they're a short 2 trailer road train using performance based standards rules.

you must be careful with the weight balances the scalies are now targeting caravans as many have the weight balance wrong and are overloading the rear axle and the chassis resulting in catastrophic failure or at the best a bent rear chassis section
Last edit: 1 year 6 months ago by trainzkid88.

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7 months 1 week ago #256116 by LangdonStevenson
UPDATE: I spent some time today working on the D6. I have made modest progress.

Running the starter motor on the pony motor I have spark synchronised with compression stroke. So it was time to try getting fuel happening. Topped up the tank. Pulled the top off the float bowl and unstuck the needle, got good flow fuel to the bowl which is as much as I can do without major disassembly of carburettor/fuel tank assembly.

Cranked the pony motor over with the starter and I got a pop out of it! Repeated cranking would get a pop from one only of the two cylinders.

So I've taken a small step forward. It leaves me worried now though that, as per the owner's recollection the pony motor was only running one cylinder, which isn't enough to get the diesel started.

So I'm left wondering how to proceed. The best solution would be to haul it down to somewhere that I can work on it easily.

Would it be easier to delete the pony motor entirely and convert it to an electric start?

Open to thoughts and suggestions.

212 grader, 301.5CR excavator, 226B3 skid steer (and fingers crossed a D6 8U coming my way soon!)

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7 months 1 week ago #256117 by Wombat
Replied by Wombat on topic Rescuing a "broken" D6 8U
Sounds like your timing is out, only have spark to one cylinder instead of two, move timing so that you have spark on two cylinders.

Wombat

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7 months 6 days ago #256118 by LangdonStevenson
I assume that the pony motor has a 180 degree crank angle, so I'm not sure how I could only be getting properly timed spark on one cylinder.

To be clear both cylinders are getting spark, but I didn't conform that the second cylinder is timed correctly. I just assumed that it would be.

212 grader, 301.5CR excavator, 226B3 skid steer (and fingers crossed a D6 8U coming my way soon!)

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7 months 6 days ago - 7 months 6 days ago #256120 by gauntjoh
Replied by gauntjoh on topic Rescuing a "broken" D6 8U
I’m more familiar with the earlier D2/D4 ponies (we call them donkey engines here in the UK), but I’m wondering if you could have a stuck valve in the cylinder which isn’t firing. It's easy to take the plug out and check for compression and if none, take the head off and free up the offending valve.

John Gaunt, ACMOC Director, UK
Last edit: 7 months 6 days ago by gauntjoh.

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7 months 6 days ago #256121 by LangdonStevenson
Gauntjoe - both cylinders have similar compression (tested with a thumb over the spark plug hole while turning over the engine). So I don't believe that the second cylinder has a stuck valve.

Not being able to run the starter motor for more than a six or so rotations doesn't help though. Can't really give it enough time to ensure it's getting fuel proper etc.

Which is why I wonder if it's really worth persisting with the pony motor.

 

212 grader, 301.5CR excavator, 226B3 skid steer (and fingers crossed a D6 8U coming my way soon!)

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7 months 6 days ago #256122 by trainzkid88
if you can get it workinmg its worth it. it is the glow plug for these old girls. heat from the pilot engine warms the coolant somewhat and the exhuast preheats the intake air and also gets the oil pressure up and can be used to build heat in the cylinders.

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