chrysler 20 tries to engage gear whilst idling

[boxertommy]

hello , im new to the site , can anyone give me some advise please! , i picked up a 20hp chrysler , when i tested it in a water drum ,, i found it to tick over okay , then,, on warming up i get a ( noise ) that sounds like the engine is trying to engage into gear,, is it possible that this is the case , if so how can i repair it , , has anyone else come across this problem , i would greatly appreciate any help,,, thanks ,,, tommy

 

[eurolarva]

Re: chrysler 20 tries to engage gear whilst idling

Hello Boxertommy and welcome to Iboats. Remove spark plug wires and place the motor in neutral. Turn prop by hand in both directions. Do you hear a clicking noise? If so it is probably out of adjustment. There should be probably 6 bolts and nuts holding the middle covers on the motor. When you remove them you should see a hex shaped nut about 1 inch long conneted to a linkage on both sides. Turning this nut either clockwise or counterclockwise will adjust the motor shift from forward neutral and reverse. Put shifter centered on neutral and adjust till there is no clicking in either direction.

 

[boxertommy]

Re: chrysler 20 tries to engage gear whilst idling

thanks eurolarva , i will check that out , i read one of the other posts that mentioned ( no reverse gear ) and the reply was similiar!! the engine hasnt been used for some time (garaged )so i need to give it a thorough service , im waiting for a workshop manual to arrive befor i begin , i noticed that a lot of posts say the mix for these engines is 50/1, is that correct for 20hp, , once again thanx for your reply

 

[eurolarva]

Re: chrysler 20 tries to engage gear whilst idling

50 to 1 is the correct mix. YOu should also change out the lower unit oil. Look at it and make sure it is a dark amber color. It should not be milky white or water should not come out of it. You will also want to consider an impeller for the waterpump also. These should be replaced every other season.

 

[boxertommy]

Re: chrysler 20 tries to engage gear whilst idling

ok thanx . , as you can see im based in merseyside england , ive just got some new plugs, but cant find, a chrysler outboard site in my area for the impeller , any ideas , tommy

 

[eurolarva]

Re: chrysler 20 tries to engage gear whilst idling

Mercury sells parts for chrysler. Do you have a merc dealer there? Post your model number and I will see if I can find you a mercury parts list.

 

[Porto]

Re: chrysler 20 tries to engage gear whilst idling

The prop on my Chrysler 45hp (1972) spins slowly while in neutral, is this something that can be solved with the same solution as above?

 

[eurolarva]

Re: chrysler 20 tries to engage gear whilst idling

Yes. I have a 45 hp chysler as well. When you have it in neutral the prop should spin freely forward and backwards with no clicking. Just remove the motor covers and adjust the linkage nut. I am not sure which way you need to turn it but spin prop with finger while slowly turning the adjustment nut. There will also be a small nut next to the long one. This is a lock nut to tighten the two together when you are done. I believe you need a 3/8 inch wrench.

 

[boxertommy]

Re: chrysler 20 tries to engage gear whilst idling

im sure i can find a merc dealer near me !! the model number is 205HE

 

[eurolarva]

Re: chrysler 20 tries to engage gear whilst idling

Merc parts only go back to 1978 on the 20HP chryslers. I use this site to find parts that look similar to mine and then order them. The part numbers listed are Mercury numbers. I have had pretty good luck in the past doing this. A lot of parts are still the same as they were years earlier. Here is the link mercury link

 

[rolo66]

Re: chrysler 20 tries to engage gear whilst idling

Yes. I have a 45 hp chysler as well. When you have it in neutral the prop should spin freely forward and backwards with no clicking. Just remove the motor covers and adjust the linkage nut. I am not sure which way you need to turn it but spin prop with finger while slowly turning the adjustment nut. There will also be a small nut next to the long one. This is a lock nut to tighten the two together when you are done. I believe you need a 3/8 inch wrench.

I read your post I could be having the same problem. 35 hp chrysler I dropped the lower unit to repalce impeller. When I put it back togather the prop spins while in neutral. I can turn the flywheel and prop turns. There is a linkage connector that runs down the backside of the lower unit I had to disconnect it to drop the lower unit. Is that the small and long nut you are referring to.

 

[oswald]

Re: chrysler 20 tries to engage gear whilst idling

Boxertommy
the part number for the impeller for your engine 205HE
is F436065 (original) or Sierra 18-8903
oswald