1988 Force T/T pump rebuild service

[ahickman]

I have a failed T/T pump and would like to have it rebuilt. OEM is always better quality than aftermarket! I see that RRitt is an excellent resource for this service but is not available by PM. Hoping he will weight in for some quick questions I have before purchasing his service off of eBay:

http://www.ebay.com/itm/Chrysler-Fo..._Accessories_Gear&hash=item4d02e76c68&vxp=mtr

1. What is the current turn-around time after receiving the pump?
2. Given the following symptoms, how certain can I be that the pump is the failed item?
a. pump motor spins, but no lift/lowering occurs
b. minimal signs of leaking on ram seals
c. pump is full of clear (not milky) lube. Assume it is 30W.

Thanks,

Aaron

 

[ahickman]

Re: 1988 Force T/T pump rebuild service

Anyone know how to get a hold of RRitt other than PM'ing?

For those that are interested in what the inside of the trim/tilt pump and motor shaft look like, here you go. I did not open up the bottom of the pump (snap rings on either side). My pump has a bit of metal on metal wearing along the end of the motor shaft and its receiving well.

 

[RRitt]

Re: 1988 Force T/T pump rebuild service

just email me, I don't think forums is the place for business.
rritt01@yahoo.com

having clear fluid is a good sign that you do not have rust. rust is what generally causes ram failure on 1988. therefore it seems even more unlikely that you have ram troubles.

rams almost always outlast valve bodies. If you had 100 boats with drift down 95+ of them would be due to valve body. It takes nearly as long to test the rams as to just replace the valve body. In the long run, the smart money is to just replace valve body and see if it is fixed.

rams should be replaced when the top seals on tilt/trim/shock begin to show signs of age or wear. You rebuild the ram in order to keep water out. Water inside system is the kiss of death.

as regards your picture. a very unusual valve body revision. if it was me, I would thread the post and use a different spring along with a set-screw and a jam nut (like adjusting valves on a car except that you adjust the pressure). the vb looks to be in very good shape and should fix up great.

 

[ahickman]

Re: 1988 Force T/T pump rebuild service

Thanks! Emailing you now.

 

[ahickman]

Re: 1988 Force T/T pump rebuild service

RRitt, does the motor shaft look damaged to you?

 

[RRitt]

Re: 1988 Force T/T pump rebuild service

just feel tip of armature with your fingers. it should not have any burrs or flaring that might prevent it from dropping into gear. if it does then carefully grind back to flat with a dremel followed by a thorough washing of reservoir.

 

[SweeperForce]

Re: 1988 Force T/T pump rebuild service

I see your rebuild kit is for 1981-1988. Do you have one for 1989?

Tom

 

[RRitt]

Re: 1988 Force T/T pump rebuild service

the kits are for rams. the freshwater ram rebuild is an easy job. I don't sell any kits for valve bodies. I would end up spending all day on phone or mail answering questions. It's a pandora's box and I'm not going there. The pump listings are a flat rate mail-in rebuild. I have some asian VB listed but they are just for people who want it yesterday and don't care about quality.

 

[ahickman]

Re: 1988 Force T/T pump rebuild service

Got my pump back from being serviced and reassembled it. No change. Very frustrated. Taking it back down to see if there is an explaination. Hoping someone can look at the following picture of the motor shaft/end and tell me if it is a normal shape/condition. To me, it almost looks like the end is rounded off and is spinning in the pump gear. If you look closely at the end of the shaft, it is round rather than rectangular. Is this normal for the shaft end?

 

[ahickman]

Re: 1988 Force T/T pump rebuild service

Well, I took the pump off tonight and inspected it closely. I looked the shaft end on motors sold on ebay and various threads. None of them looked like mine where the last 3/16" was rounded. All had a rectangular shaft end. So, I made the assumption that my shaft was not seating correctly in the valve body and was not capable of spinning the pump. I disassembled the motor completely and thought it through. Measured the shaft depth and the depth needed in order to sink into the pump gear. Needed to lower the stator/shaft by 3/16". In order to do this, I trimmed the cardboard busing on the shaft that sits up against the bearing pressed into the reservoir. This allowed the stator to sink right into the pump gear. Reassembled the pump and quickly realized that the vertical "slack" in the stator movement allowed it to pop back out of the pump gear. Took it apart again and found two washers that fit on the top of the stator shaft and did not interfere with the electric brushes. Two washers kept the stator from raising and kept it locked into the pump gear. Engine now has trim n tilt!!!!!! How long this will last, I don't know. Just know that I am up and running and will save up some $$$ for a real fix (new motor and pump). Thanks to all for input.

 

[RRitt]

Re: 1988 Force T/T pump rebuild service

get the motor and the valve vbody both off boat and in hand. don't even bother trying it while on boat. you won't be able to tell for sure what is going on. both parts need to be on the workbench. call me on phone and I'll walk you through it.