Raw water impeller 2004 x30

[h20winn]

Hello. I am having a problem with the pully of the raw impeller pump. I went to change out the impeller to get ready for the spring season and like in the past, I have been taking the whole pump out to get the impeller out easier instead on having the impeller housing in the boat and working it on the boat. My issue is that the impeller pump pully has siezed into the crankshaft pully and will not come out. Is there a specail pully that is made to get that out if in a situation arises like I currently have now? I cannot seem to get the pully to release. Will I have to cut the pully and get a new raw impeller pump?

[bigmac]

Originally Posted by h20winn

Hello. I am having a problem with the pully of the raw impeller pump. I went to change out the impeller to get ready for the spring season and like in the past, I have been taking the whole pump out to get the impeller out easier instead on having the impeller housing in the boat and working it on the boat. My issue is that the impeller pump pully has siezed into the crankshaft pully and will not come out. Is there a specail pully that is made to get that out if in a situation arises like I currently have now? I cannot seem to get the pully to release. Will I have to cut the pully and get a new raw impeller pump?

I'm not sure what you mean by the "pully of the raw impeller pump". There is no raw water pump pully. It's a Johnson F6B-9 pump and it just bolts to the crankshaft. There's no need to be removing any pullies. Do you mean the flange with the four hex bolts that secures it to the crankshaft pully? Just unbolt the flange, unbolt the pump from the support bracket and pull it off. I'm not sure it wouldn't be easier to remove the silencer, though...if you don't want to hunker down in your right rear storage compartment to change the impeller, I doubt you'd want to do so to pull the pump off. The former is easier than the latter.

Getting the impeller changed isn't easy on a Maristar, but it certainly can be done without pulling the raw water pump. I do it with a vise-grip.



The ultimate solution IMHO is to remove the stupid silencer (brilliant piece of marine engineering, that...) and replace it with some inline mufflers or MasterCraft's baffled exhaust system they're putting on the 2007's.

[h20winn]

I removed the 3 allen bolts that attach the impeller pump to the crankshaft. That portion that is attached by the allen bolts, is siezed up in the crankshaft pully. I cannot get it out.

[bigmac]

Originally Posted by h20winn

I removed the 3 allen bolts that attach the impeller pump to the crankshaft. That portion that is attached by the allen bolts, is siezed up in the crankshaft pully. I cannot get it out.

Hmmm..are there three, or four bolts that hold it to the crankshaft pully? I can't remember but I was thinking there were four, plus the bolt that holds the pump to the bracket. I can't think of any puller devices that would work in those quarters. My guess is that my dealer would say that you have to pull the silencer to get enough room to work.

Once all the bolts are out, maybe some tap-tap-tapping is in order, but be careful to only hit the flange and not the pump body. Too much torquing force on the pump body can damage the rear pump seal. I guess you could use some PB Blaster, but I'd be worried about getting it on the serpentine belt. If you do get it off, maybe reinstallation with a little Never-Seeze would be a good idea.

[h20winn]

Thanks Mac for the advise. I will wait to see if anyone else has any ideas or if there is a puller for that module. I was thinking about modifying something like a steering wheel puller but there is really nothing to grasp on to pull that spindle that goes into the crankshaft out. I cannot believe that that siezed up in the crankshaft assembly.

[PendO]

sure seems like you are going to a lot of trouble to take out the impeller? Am I missing something?

[JohnnyB]

Originally Posted by h20winn

Thanks Mac for the advise. I will wait to see if anyone else has any ideas or if there is a puller for that module. I was thinking about modifying something like a steering wheel puller but there is really nothing to grasp on to pull that spindle that goes into the crankshaft out. I cannot believe that that siezed up in the crankshaft assembly.

I'm not sure I understand your issue....can you post some pics or a diagram....

[h20winn]

The component that is attached to the crankshaft area with the three allen bolts does not want to come out of the crankshaft pulley.

[Jerseydave]

Why not just change-out the impeller and leave the housing alone?

Most people never remove the housing for routine impeller replacement. Sounds like removing the silencer would be easier to gain more access.

The more often you remove the housing, the more likely that rear seal will start leaking, I would think.

[JohnnyB]

Are you referring to these hex bolts(see white arrows)? If memory serves me correctly, there are four.

If it is these bolts, why do you want to remove the housing??? The cover comes off and you can extract the impeller like in the picture.

If we're all misunderstanding you, post pics and we'll do our best to help.

As others have said, access would be easier by removing the silencer