Did I Ruin My Impeller Or something Else???

[eek]

New & Stupid! Fired up my Johnson 50 with muffs hooked up to exhaust holes instead of water intake!Worried sick i might have screwed up impeller or more!Please advise next step to take to sure nothing is ruined!<br />thanks in advance!<br />eek

 

[MurdockJr]

Re: Did I Ruin My Impeller Or something Else???

Hopefully you didn't run it very long. You will at least need to change the water pump. Just cranking an engine without suppling water is sometimes enough to kill the impeller. Not to be rude but I would have a mechanic or someone that knows about outboards change the impeller.

 

[Walker]

Re: Did I Ruin My Impeller Or something Else???

What exhaust holes are you talking about. I don't know of any that you could make muffs fit over.

 

[DJ]

Re: Did I Ruin My Impeller Or something Else???

eek,<br /><br />If your engine has a tell tale hole (water stream indicator) and a good stream is stll coming out of it, you're probably OK.

 

[eek]

Re: Did I Ruin My Impeller Or something Else???

After i figured it out and put the muffs on in the correct spot,water seemed to flow out of the top engine hole,engine started and ran ok!<br />when i had it on the wrong way there was some smoking at the propeller which has me concerened!<br />thanks again<br />eek

 

[DJ]

Re: Did I Ruin My Impeller Or something Else???

eek,<br /><br />When yyou say "top hole" I assume you mean the "telltale"??<br /><br />THe smoking from the prop. wouldn't concern me. What would is the possibility that you warped the cylinder head. I don't know how long you ran it or how hot it got.<br /><br />Run the engine again (properly hooked up) and let it warm up fully.<br /><br />Then, let it cool down a while and remove the spark plugs. They SHOULD NOT look brand new. They will have a dark grey, possibly oily appearance to them.<br /><br />If the look brand new, you are ingesting water into the comustion chamber(s)and a head gasket is probably the culprit. You may be able to get away with retorqueing the head. I would probably do that anyway.

 

[eek]

Re: Did I Ruin My Impeller Or something Else???

yes i belive its the telltale,long stream of water shooting out of engine towards top of engine!<br />eek

 

[DJ]

Re: Did I Ruin My Impeller Or something Else???

eek,<br /><br />You're probably OK-impeller anyway. Have a look at the plugs. If they are OK, just retorque the head.

 

[Yepblaze]

Re: Did I Ruin My Impeller Or something Else???

By the time you read through these replys you could have removed the few botls holding the <br /><br />shift linkage cover and connector,<br /><br />lower unit to the mid section, <br /><br />water pump cover, and had a look.

 

[DJ]

Re: Did I Ruin My Impeller Or something Else???

yepblaze,<br /><br />You're right. However, I don't think this fella has a manual or is he comfortable doing that without one. I wouldn't be if I've never done it before.

 

[eek]

Re: Did I Ruin My Impeller Or something Else???

Spoke to local Johnson dealer,he thought there was a 100% chance that i did some damage,but i think he thought the engine was running,when all we did was try to start it without water,it never ran but turned over,it did start and run after we had muffs on correct way!

 

[Yepblaze]

Re: Did I Ruin My Impeller Or something Else???

With that being the case, that it had not even run, I would suspect that no damage had occured. Get it in a test tank, (garbage can) fire it up, and see if it's pumping.