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Lining up a Superliner rescue.


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Your certainly heading in the right direction and doubt there is much wrong with the pump

Is it linkage back to the accelerator pedal or cable, any I have worked in Australia are linkage but have no idea about the U.S. 

I have had mine stick wide open but I reckon you would be all over a sticking linkage 

Good luck and keep us posted

Lucky to have some history in the old photo 

 

Paul

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1 hour ago, mrsmackpaul said:

Your certainly heading in the right direction and doubt there is much wrong with the pump

Is it linkage back to the accelerator pedal or cable, any I have worked in Australia are linkage but have no idea about the U.S. 

I have had mine stick wide open but I reckon you would be all over a sticking linkage 

Good luck and keep us posted

Lucky to have some history in the old photo 

 

Paul

No, its definitely inside the governor of the pump.  I'm working the levers directly on the pump.  As I said I've had the same basic problem with an ambac pump that sat after running biofuel.  All I had to do with that was remove the governor cover and manually operate the plunger while flushing the fuel side out with brake cleaner.  The Robert bosch is quite a bit different so I'm not sure if I can do the same as easily.

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Thanks for the info Vlad.  I managed to get it loaded and back home.  I've since spent a couple hours attempting to flush out the pump but haven't had any luck.  It shows some throttle response yard driving with the brakes still heavily dragging.  No load it continues to have a tendency to climb to 1800rpm and stay there.  Fuel shutoff is still unresponsive.  I've been fighting fuel leakage at the banjo fitting where the head return attaches.  I can't figure out why its leaking exactly but there appears to be a helicoil in the pump where the banjo bolt threads in and judging by the paint on the pump it looks like it'd been overhauled shortly before being parked.  I'm not sure how I'd feel about sending this pump out right now if a butcher has already been in it.

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Hi Hans, please can you tell us what year is it, engine, gearbox and diffs are in your Superliner. I see spyders on the rear and buds up front! It looks pretty good, original and complete. Appears it has sat quietly without anybody attacking it over the years. What is the frame and cabin condition, much rust? Your luck was meant to direct you to your new -old Mack.

That kinda happened to me 3 years ago. I saw an add for an old Supeliner here in Aussie land, called the vendor and in short he said that it was pretty rough for what I was looking for, but he said I have a Valueliner been sitting for 2 years since he got it and 6 years before with the previous owner, got it on a machinery trade. He had no use for it. It had all that I could have wanted and similar to yours in appearance about 98% original. I had a Mack man check it out and he gave his tick of approval. We negotiated a fair price and after 6 months we took it home.

And there was a another surprise that the vendor and I discovered later. Unknown to the vendor, his Superliner was the 1st Superliner built in Australia and from memory it had the original motor in it. It was in a sad condition. He found out after he sold it to a collector, who will restore it to original.

Good luck and enjoy your Superliner.

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1989 rw613.  e6-350 original not a maxidyne on the tag but maxidyne on the hood???  13 speed roadranger rto14613 appearing to be original equip, shift pattern on the dash and mack part # on tranny tag.  4.42 mack rears on 38k taperleaf.  Paint is poor, roof peeled, very minimal rust anywhere.  Scavengers did get to it at some point: stolen volt water oil gauge cluster, top dash panel where ashtray located, passenger seat and heater cover.  Will post some pics.

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The condition seems very promising and that rust at the back panel is nothing, will go away just by paing prep work. E6-350 must be Econodyne I belive and 13 speed tranny proofs that. If it's a Maxidyne it would be EM6-300 coupled to 5,6,7 or 8 speed long steps gearbox (the most probably).

Although the look of the fuel doesn't promize happiness it sounds strange you've got any throttle reaction while yard driving. Stuck plunger means stuck rack what further means no other plunger's turning and no change of fuel supply to the injectors. So you may be having issue of another kind. I would try making that injection line test as I described. A 5 minutes matter and you will more food for thought on further investigation.

I'm glad you purchased the truck anyway. It has good chances to became a beauty (or a beast?) after getting some love. 

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Никогда не бывает слишком много грузовиков! leversole 11.2012

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Congrats on the new to you Superliner.  It looks like its in good hands and going to live again . 

The Maxidyne emblem is interesting on your Econodyne .  I find it interesting because we have discussed on BMT some trucks having Maxidyne engines with Econodyne emblems . Treat your Maxidyne emblem like gold. The can not be found . 

About your pump , I'm sure you know this , but on the very slim chance you didn't . There is external return spring .  If this is off , the throttle will run up itself . Very fast . lol  .   Don't ask me how I know this :whistling:

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Keith 

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Ok, so I no longer have any remnants of any robert bosch pumps to even dismantle.  I do however have a 1990 e6-350 ambac pump and I'm almost positive all the injector lines for it.  Has anybody swapped pump types?  Is the base timing the same?  Are the injectors even the same?  Maybe I should just bite the bullet and send this pump out but first I need to make sure the return fitting leak I'm fighting with isn't from the pump housing itself.  Like I said the housing has an obvious helicoil in it which really bugs me.

I never understood Mack jumping back and forth between ambac and robert bosch in from what I saw 1988-1990.  

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