Rebuilding tilt and trim '90 140

[archcycle]

I am starting a new thread on this since my old one was about getting the trim motor off and this is now a full rebuild.

Problem 1: Tilt pin won't budge!

I had found a good thread on this a few days ago but couldn't find it again today. Could someone give me some pointers on getting this out without mushrooming it? I've read tons about not getting PB near this thing because of the seals, but now that I'm replacing all of the seals, it's ok to just hose the crap out of it now, right?

Here are some pics of what I'm working with. It's a lifetime saltwater motor.

 

[Dhadley]

Re: Rebuilding tilt and trim '90 140

We use an air hammer and heat. Works as good as anything we've found.

 

[levi_tsk]

Re: Rebuilding tilt and trim '90 140

i know which thread youre talking about - the guy ended up using an oxymap torch he got from homedepot if you ask me thats the route id go get that sucker REALLY REALLY hot and then shoot blaster on it once it starts to cool heat it and cool it a couple times hosing it down with blaster as it cools each time

 

[HighTrim]

Re: Rebuilding tilt and trim '90 140

Ive had a bear of a time getting freshwater ones out, I wish you luck

Ensure there are no children in earshot while working on it!

Blast away with the PB, hopefully it helps. The air hammer/heat helps as well like Dhadley stated if you have one, if not, try to borrow one.

Short of an air hammer, a BFH, drift and muscle power will have to do it.

 

[boobie]

Re: Rebuilding tilt and trim '90 140

If you use a BFH get a brass drift. That will mushroom out before the pin does. They also make brass drifts for air hammers. A lot of heat also helps.

 

[archcycle]

Re: Rebuilding tilt and trim '90 140

I couldn't find a brass drift locally but did find that a 6" extension for a 1/2" ratchet is perfect. The socket side is nicely sized to strike a large surface without getting too near the edges and the ratchet side gives a nice large surface to hit with my BFH. it's also just long enough to rest it on the frame for support while I hit it.

Been heating both ends of the pin with my propane torch but I'm definitely going to have to go get an oxy-mapp. Lowes had a kit for $60 when I was there this morning but for some reason I passed it up. I'll have to pick one up tomorrow.

Is it OK to heat the insides (pictured) of the pin tube? I don't know what's inside the end of that piston and was concerned about heating it before checking on that. For now it's just getting the PB hose.


As for the PB hosedown, is it helpfu

 

[archcycle]

Re: Rebuilding tilt and trim '90 140

Maybe it's skills, maybe it's luck.. but



Progress already. Got the clip side all the way in. It doesn't want to budge more than that right now.

 

[HighTrim]

Re: Rebuilding tilt and trim '90 140

All I can tell you is that it seems to get easier once it gets moving. Just remember, you are by no means the only one to swear while attempting this, lol

 

[archcycle]

Re: Rebuilding tilt and trim '90 140

All I can tell you is that it seems to get easier once it gets moving. Just remember, you are by no means the only one to swear while attempting this, lol

Thanks for the support cause I probably offended a few neighbors.. but I got it!!

This is the most beautiful view I have seen in a long time:



And for the people who come after this, the obligatory list of tools used, in order of importance:

PB, enough beer to keep at it, 3lb BFH with rubber grip, 6" 1/2 ratchet extension, propane worked for me, 10" 3/8 extension, tiny punch

So building on what you all told me and all the other threads I read, my strategy was:
PB, beat the 1/2 extension with ratchet side on the pin, heat, PB, wait. Repeat. Once it would get far enough in one direction that I was satisfied, I would clean out the side I got it moving in, and reverse direction.

I think reversing direction really helped keep from mushrooming either side. Cleaning out the gunk probably helped a lot. That's what the tiny punch was used for- rubbing a paper towel around in the hole to get all of that out so it wouldn't get sucked back in as the pin passed back over going the other way. After a while it would always just plain stop moving and I'm pretty sure that was because it had gotten a bunch of broken loose crap wedged in around it and every time I reversed it wayy more would come out to wipe off.

The 10" 3/8 extension was good once I got the pin in far enough that the wider 1/2 was too short for. I suppose one could just use a 10" 1/2 but I didn't have one on hand. Didn't hurt the 3/8, and after a little cleanup with a dremel the 1/2 is going to be fine.

The 1/2 on the socket was a perfect size to use as a punch, and the 3/8 would depend on the specific one someone used but mine's ratchet side was exactly the size of the hole which worked out great.

Gonna call it a day with that done, will pick it up again tomorrow night with the unit off. The mounting bolts already came loose with no problems but I just left it on there.

 

[archcycle]

Re: Rebuilding tilt and trim '90 140

Update on the project- I bought a house Jan 31st (!) so this has been on hold while I gut half of it, but hopefully I'll be able to continue on this in another week or two. Got the seal kits in the mail recently and I even went to the dealership and sprung for the OMC brand grease and sealers.