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Mark and List
I tried to rebuild one of the Roosamaster ( think I spelled it right) for a GM
diesel and for sure it didnt work in fact after you do it there is a machince it
has to be put on and something done to it( dont remember) If it were me I haul the
whole thing there and an have the shop work on itmy diesel (GM) turned into a real
project because I tried to fix it my self and I had never worked on one of thease
before my thaughts take it to someone who knows and hopfully they will let you
watch
Carl
mblair1@home.net wrote:
> *This message was transferred with a trial version of CommuniGate(tm) Pro*
>
> Several folks suggested that my new 1986 M998 HMMWV's accelerator
> problem might be due to air in the fuel system. Well, like a medieval
> doctor, I tried to bleed my truck back to health... and it worked
> about as well. :-(
>
> I replaced all of the rubber hoses and clamps in the fuel supply line,
> (including the short segments at the fuel tank and at the fuel pump,
> as well as the fuel filter drain line) because some of them looked a
> bit ratty. I didn't bother with any of the return line hoses, except
> for the short one that connects to the top of the injection pump (it
> didn't look bad, but it was easy to get at, and I had to pull it off
> anyway to bleed the pump). I replaced the fuel bleed screw gasket on
> the fuel filter. I also replaced the fuel filter element and gasket,
> and cleaned out the filter body. I initially primed the system by
> drawing fuel from the fuel filter outlet with a hand-held vacuum pump,
> rather than cranking the engine a lot (I had fully drained the filter
> body and all of the supply lines, so I drew fuel all the way from the
> tank and filled the filter body). Then, I ran the engine until fuel
> started to come out the fuel return outlet on top of the injection
> pump, and finally I cracked open each injector line at the injectors
> and then ran the engine until fuel came out.
>
> The engine still has bad speed regulation, idles way too fast (I
> think... I don't have a tach for the truck, but it sure sounds too
> fast), surges for no good reason, and doesn't respond to the
> accelerator properly. It doesn't always respond quickly to pressing
> the accelerator, and when I release the accelerator, the speed drops
> and then rises and falls a few times, before settling at the wrong
> speed. The idle speed setting could be off, but I didn't bother trying
> to adjust it because that wouldn't explain the rest of the engine's
> behavior.
>
> So, I think I'm going to have to take my injection pump in for a
> rebuild, but is there anything else I should check before I start
> tearing the engine down? I'm not looking forward to pulling that pump
> out! I'm assuming that I remove the pump and bring it to the local
> diesel rebuild shop, rather than bringing in the whole truck. I got
> one suggestion that it's much cheaper to buy the $50 rebuild kit and
> do it myself, but I don't plan to take that route, because I
> definitely don't know what I'm doing! :-)
>
> By the way, replacing the hose that goes from the fuel filter to the
> injection pump on a military HMMWV without removing the intake
> manifold is a whole load of fun... NOT! :-)
>
> You know, the HMMWV might be great to drive, but when it comes to
> maintainability I'll take a 2.5-ton multifuel any day! The way the
> HMMWV's engine is mounted, it's pretty hard to get at most of the
> interesting parts. I've found my 2.5-ton shop van to be a lot easier
> to work on (though it hasn't needed much engine work, other than
> having a couple coolant hoses replaced).
>
> I guess my new truck won't be running until sometime in 2000. It must
> not be Y1K-compliant. :-)
>
> --
> Mark J. Blair, KE6MYK <mblair1@home.net>
> PGP 2.6.2 public key available from http://pgp.ai.mit.edu/
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This archive was generated by hypermail 2b29 : Mon Feb 21 2000 - 18:15:00 PST