55 chrysler, running on one cylinder

[carvinman]

Model# 559V3S Ser.# 1257 last time at the lake boat was running great,couple of hours, then started loosing power. We headed back to the landing and by the time we got there it was bearly running. At home I checked to see if the plugs were firing, top plug nice bright blue, bottom orange/yellow. I switched the coils(the things with the plug wires, are those the coils?) and it didn't change, top good, bottom not. So I pulled the flywheel. Little bit of rust I cleaned up is all I saw. Put back together and put in tank of water to try. Ran a little better and plug fire now both blue. But still running on the top cylinder only. Pulled the bottom plug wire, no change in running motor. Pull the top plug wire only, and it dies. Does my motor have points? It's supposed to be a 1983 motor. Wouldn't that be solid-state? A request to all replies, when you mention parts that might be the cause, please describe where and what the parts looks like. I don't know very much about this. Thanks

 

[alcan]

Re: 55 chrysler, running on one cylinder

Your motor is a 1983 model, it uses presolite CD ignition. If you will post your E-mail adress I will send you some test procedures.

 

[carvinman]

Re: 55 chrysler, running on one cylinder

alcan, thanks for the reply. Someone else told me it was an '83, but my title says '85? I guess someone goofed. I do believe you though. I don't know exactly how I'm supposed to post my email address, so I'll just blurt it out here- My address is IMAwoodcarver@msn.com I'll also edit my original post to read 1983 instead of 1985. thanks ps- what is a presolite CD ignition? Does it use points? I'm fair at auto repair, but boat/motor repair terminology I am not. I really need to find me a service manual.

 

[alcan]

Re: 55 chrysler, running on one cylinder

Hi Carvin<br />Thats a 10-4 on the manual. Blurtin out your e-mail address here works great for me. Prestolite is a brand name, C.D. means capasitor discharge. This system does not use points. Forgive me I am not an electrical wiz. I know the basics for things (barely). I have a real hard time trying to explain this stuff to others. That is why it is just easier for me to send you the sheet of testing procedures. That way you have first hand (so to speak) instructions.

 

[carvinman]

Re: 55 chrysler, running on one cylinder

Hi alcan, Hey, I got some new info about my chrysler. I borrowed a compression tester from a friend today and I,ve found something kinda bad. The top cylinder checked at 165 psi, bottom checked at 20 psi. Yeah, 20 psi. Little bit of a problem, huh! Well, I don't know what the root of the problem is, but at least I can stop pidlin' with it, hoping to stumble into an easy fix. So, You got any ideas as to what all could cause next to no compression? I guess the first thing I need to do is head to town and get a manual. alcan, thanks a lot. I'll be watching for your email of instructions. Thanks again!

 

[alcan]

Re: 55 chrysler, running on one cylinder

Hi Carvin<br />Well this does not sound too good. But before you write this motor off, I feel it would be prudent to have a look at a few things. What is the cause of the compression loss? I think a peek under the head, at the cyl and head gasket is in order. If there is a good side to this, it is, if you do an autopsy on this motor and find you can repair it, you win. If not you still win because you gleened the expirence plus you have some dandy parts to sell off.

 

[briango]

Re: 55 chrysler, running on one cylinder

alcan, you dont think that it would be feasible to rebuild his motor? If it low compression then it could only be 1 of 2 things (or both!). Laings outboards treated me pretty good on parts for my Chrysler. It's busted rings or a blown head gasket.

 

[carvinman]

Re: 55 chrysler, running on one cylinder

Hi Brian, thanks for the imput. The only way I wouldn't rebuild is if it's unrepairable, like a cracked block. Thanks for the recommendations for parts. Jerry

 

[Squeakit]

Re: 55 chrysler, running on one cylinder

Hi Carvin: Thought you might be a musician at first (Carvin makes great gear for musicians) but then saw you were a woodcarver. However, I would try pulling the head, check the wall of the bad cylinder for serious scoring, if none found replace new head gasket and button her up and run her. My 89 Force 50 blew a head gasket and did just what your engine did. Another sign of a bad head gasket is a very clean spark plug in the bad cylinder - the water intrusion scrubs the plug. I hope it's just the gasket. Best of luck!

 

[alcan]

Re: 55 chrysler, running on one cylinder

Hi Bryan, The feasibility of making repairs is not my call. I only try and provide info and once in a while offer an opinion based on what I read. If you read my last thread I believe I was trying to encourage an investagation.

 

[carvinman]

Re: 55 chrysler, running on one cylinder

Happy 4th everbody!!! I hope you're all out on the lake having a great weekend! I'm not, but having a good time working on my motor today. alcan, took the head off today. The bottom cyl. piston top is very pitted and part of the piston edge is even eroded away at the 10 0'clock position, where I can see the edge of the outer ring is layed outward right at the end of the ring. The cylinder wall, however, doesn't look scarred or pitted and really looked well lubricated, like the top cylinder, except there looked like some sort of calsium or white carbon build-up on the cylinder wall right where ring leak and eroded piston is. Don't guess I can "just" clean up the cyl. and slap in a new piston and rings, huh! So, what's next? Does this sound like something I can fix, or is there something here I don't understand and you're going to tell me about? Thanks!

 

[jimsue]

Re: 55 chrysler, running on one cylinder

i have a 55hp model 5571 with the same problem can not get the second cylinder running any troubleshooting suggestions