dajohnson53
Lieutenant Commander
- Joined
- Apr 28, 2004
- Messages
- 1,627
Hi: I'm going to replace my three wire VRO2 fuel pump on my J200TXESM with a brand new VRO/OMS pump (#5007423).
I know the cost of the pump and the option of pre-mixing, so no need to discuss that.
I do have a factory manual and a fairly decent accumulation of tools.
Are there any gotchas in this DIY project? I'm the type of DIY'er who often finds projects to be more than I bargained for and I don't want to get in over my head and mess something up. I ESPECIALLY don't like disassembling major parts of the engine just to get to the part I need to work on.
I know the pump kit converts the three wire pump to 4 wire. From what I've read, this might involve attaching a new wire somewhere - to the rectifier/regulator terminal strip? Last summer I actually replaced the R/R so I know what it is, how to get at it, what the terminals are all about, so I'm not worried about that.
I updated the pulse limiter recently, so I won't bother doing that again. This was just a little while ago when I got the engine (maybe 100 gallons of fuel ago!) because the original black one was in there.
Anyway, the installation of the pump itself LOOKS like it should be dead simple for a DIY'er. All the connections, fasteners, lines are right there where I can see them without disassembling anything else.
I know how to purge the oil line (replaced hose w/ engine install; new filter and cleaned tank this spring).
Everything works now except the oiling - alarms all work, engine runs great, etc.
To give an indication of the other projects I've tacked: I've overhauled the waterpump and electrical system, rebuilt the carb and removed water jackets and cleaned out circulation passages (and reinstalled gaskets, covers, torqued, etc.) on my Merc kicker. The R/R and oil tank clean/overhaul were the biggest things I've done with the big engine other than gauge rigging, etc.
Is there any advice or cautions you might have, or words of encouragement? Should it really go as easy as it appears to be?
Thanks, as usual.
I know the cost of the pump and the option of pre-mixing, so no need to discuss that.
I do have a factory manual and a fairly decent accumulation of tools.
Are there any gotchas in this DIY project? I'm the type of DIY'er who often finds projects to be more than I bargained for and I don't want to get in over my head and mess something up. I ESPECIALLY don't like disassembling major parts of the engine just to get to the part I need to work on.
I know the pump kit converts the three wire pump to 4 wire. From what I've read, this might involve attaching a new wire somewhere - to the rectifier/regulator terminal strip? Last summer I actually replaced the R/R so I know what it is, how to get at it, what the terminals are all about, so I'm not worried about that.
I updated the pulse limiter recently, so I won't bother doing that again. This was just a little while ago when I got the engine (maybe 100 gallons of fuel ago!) because the original black one was in there.
Anyway, the installation of the pump itself LOOKS like it should be dead simple for a DIY'er. All the connections, fasteners, lines are right there where I can see them without disassembling anything else.
I know how to purge the oil line (replaced hose w/ engine install; new filter and cleaned tank this spring).
Everything works now except the oiling - alarms all work, engine runs great, etc.
To give an indication of the other projects I've tacked: I've overhauled the waterpump and electrical system, rebuilt the carb and removed water jackets and cleaned out circulation passages (and reinstalled gaskets, covers, torqued, etc.) on my Merc kicker. The R/R and oil tank clean/overhaul were the biggest things I've done with the big engine other than gauge rigging, etc.
Is there any advice or cautions you might have, or words of encouragement? Should it really go as easy as it appears to be?
Thanks, as usual.
