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Message: <blockquote data-quote="tech.35058" data-source="post: 141922" data-attributes="member: 14347">Greetings.  I am not familiar with the C185, so consider any & every thing I say as a load of baloney.That disclaimer  out of the way,  on some of the smaller engines, there was a timing pin-bolt, you shifted a spacer  that either went into a slot, or "clamped" a shaft   so the pump would not turn while you removed & installed it. ( in the shop I worked in, some guys worked on the small engines, others worked on big engines, we were not really cross trained on the different engine families) honestly, they tried to leave the pump mounted to the front plate if they could.  Looking at images on the internet, I have not dealt with the VE3 pump. The shaft appears to be tapered, does it have a key locating the gear on the shaft?is the gear now loose on the shaft?  The engine performance you describe indicates the injection was not properly in time with the firing stroke, which would have been caused by the pump being "adrift" in the mounting slots.clean the area around the slots & look carefully for scribe marks that might indicate where the pump was originally located if there are a scribe mark on the plate and a corresponding mark on the pump housing, and if the gear has not been loosened, moved on the shaft, or if it has a key to locate the gear to the shaft ... boy, that,'s alot of "if"s  !  The machine was running before. so the pump may continue to  run the engine.  If you  "have the pump checked" you will probably be told it is "bad", needs to be built, or replaced, & since the housing is broken, does not qualify as a core.  So, the pump should have been attached with 3 studs, nuts & probably washers. The designers are so inconsiderate of the service tech's when they do these things.the ( probably o-ring) seal between the pump housing & the front plate is probably destroyed since the pump was so loose. (or maybe not? )    The inaccessible pin that you can not get to, was probably a stud was supposed to have a nut & washer on it. ( or, maybe not.). the last person possibly decide it was too hard to get to, thought they could get way with just 2 bolts, now you get to deal with the results. If you can get the pump back in time ( did you find those scribe marks?) and re secure the pump back to the front plate, & if the gear is secure on the shaft (is the gear still secure on the shaft? with out the proper tooling & clearance to work they can be very! difficult to remove. Even with proper tooling.)  If you accomplish all this, the engine may start & continue to power the machine. ( even if it may or may not leak oil from this joint). If not, & you  have to go deeper, start by placing the machine to top center firing stroke number one piston.( a service manual would be great to find instructions on how to do all this.)   Any further advice from me, beyond this point would be "blind leading blind" so I must shut up before leading you astray. I am sorry not to be familiar with this machine & pump.Good Luck ... CE</blockquote>

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