1983 Chrysler 85 hp "locked up"????

[Osage76]

I have the original engine that came with my 83 bayliner capri. It is a 85 hp Chrysler Force. It always gave me trouble because it was run in saltwater and the itty bitty water ports were impacted with salt and I presume calcium.

It was running however when it was put up for winter. I Can tell you that at the time I didnt know better and had removed the exhaust port access on the left side where the side of cylinders are exposed and sprayed with water in an attempt to "clean it off" .. this was in 2002. The next spring when I tried to crank the engine it wouldnt budge... So I am assumed that rust locked up the cylinders. Long story short I bought a 1990 force 90 hp and replaced the engine.

Now a little wiser and more patient I have removed the old Chrysler form storage and set up to get it running. I have removed the head cover and exhaust port cover and sprayed with PB Blaster. The rust actually isnt bad at all but when I try to turn the fly wheel it wont budge... Any advice????? Would love to get Frank A's advice here but all are welcome!

 

[Frank Acampora]

Re: 1983 Chrysler 85 hp "locked up"????

Well----questions are 10 dollars, answers are 100, and correct answers are 500! LOL

Sometimes the rust is not so bad and a good spraying with WD or PB will help to free it. Sometimes you need to put a strap wrench on the flywheel to finally break it free. In either case, at minimum, a honing would be advised.

However: In your case, having actually sprayed water into the cylinders and letting it sit, I suspect that the rings and the cylinders both are rusted. Most likely nothing less than disassembling the block and driving out the pistons will do (wood block or brass drift and 3 pound psychology or 3 pound fine adjustment tool).

That'll be 500 please.

Look at it from the positive angle: Now you have an excuse to tear apart the engine and rebuild. While it is open, that would also be the time to get a Dremel and port the bypass and exhaust yeilding a true 85 ponies.

Here is a before and after photo.

 

[Osage76]

Re: 1983 Chrysler 85 hp "locked up"????

So I have it laying on the side with the exhaust port open and have been soaking it in pb blaster, I tried the strap wrench but she still wont budge I guess I ll keep soaking it. I hate to pull the head but I may not have a choice. Also as a side note please feel free to comment on my other thread

http://forums.iboats.com/showthread.php?t=398352

 

[Osage76]

Re: 1983 Chrysler 85 hp "locked up"????

I found a shop manual for a 1982 chrysler force 85 hp outboard. Mine is a 1983 Model # 856X3L Will this manual do or should I be looking for a 1983???

 

[thompy]

Re: 1983 Chrysler 85 hp "locked up"????

you may also have rusted up some bearings

 

[Osage76]

Re: 1983 Chrysler 85 hp "locked up"????

she still wont budge with the strap wrench and I have sprayed with PB blaster and deep creep. Before I tear it apart which I have never done before I want to try a breaker or cheater bar on the strap wrench or maybe a subtle tap on the piston with a wood block just to jar it to break free any objections?

 

[jerryjerry05]

Re: 1983 Chrysler 85 hp "locked up"????

Remove the head and see what's there. If it's not solid rust, then sure a good block of wood and a 3-5 pound hammer and give her a couple of whacks, alternating pistons.J

 

[Frank Acampora]

Re: 1983 Chrysler 85 hp "locked up"????

I told you that you would need to drive out the pistons. I have worked on too many of these engines to think that anything will come easy--they ALWAYS fight you!

 

[notsunkyet]

Re: 1983 Chrysler 85 hp "locked up"????

and if all else fails a 15lbs sledge will be alot of fun and move a piston even if it isnt wanting to leave its current location!!!!!!

 

[Osage76]

Re: 1983 Chrysler 85 hp "locked up"????

Right as always Frank!! I have never actually torn it down before.. Any tips, instructions or incantations you can offer??

I used a wood block on the number 2 and 3 so they move a little when the flywheel has pressure but I think number 1 is at tdc it won't budge.

 

[Osage76]

Re: 1983 Chrysler 85 hp "locked up"????

So i stripped off all the electrical and removed the intake carbs and intake manifold. Sprayed some deep creep onto the crankshaft and waited about two minutes. she turns like a dream... now I get to put it all back together....

 

[Osage76]

Re: 1983 Chrysler 85 hp "locked up"????

It lives among us.. now just one problem, when I turn the key off it dosent flinch, so ive been killing the engine with the choke... I know that the key when off is supposed to short the cd module to ground... but its not working. I checked the key switch and even re wired everything but it still runs when the key is off....