3 questions.. 1 picture..

[floatingwoody2006]

1971 evinrude 18 horse..<br /><br /> http://i40.photobucket.com/albums/e224/drkilldrmz/IM000481.jpg <br /><br /> I numbered the picture to relate to the questions.. In #1 in the picture.. Does anyone know what screw belongs here?.. or should there be anything in that hole..<br />#2.. i think this is unburnt exhaust leaking from lower unit.. Does this indicate the need for seals or gaskets, and can someone point me to a part # for them if so?..<br /> and #3.. How much will this piece of missing cavitation plate affect the handling?.. Notice how PB Blaster can harm a paint job also... Thanks guys!!

 

[KYHunter]

Re: 3 questions.. 1 picture..

Number 1 , must be either plugged , if its not a threaded plug hole. Or if it is plug hole wheres the plug?? It is in general location of lower unit, upper plug. <br /> Mine is higher up on lower unit. <br /> If it is and you've ran motor like that, your lower unit is either fried or will be.<br /> You must correct this, before using motor again. <br /> If indeed it is a plug hole ,and you ran with it open. You need to inspect your lower unit for Damage.<br /> If its a hole from damage , you need to get it welded shut, or you'll be running your lower unit dry.<br /> The # 2 question , yes it looks like unburned fuel/oil leaking, may not be much to worry about.<br /> As far as chunk out of cavitation/skeg plate. I really dont know but wouldn't think it would effect handling too much.<br /> <br /> KYHunter

 

[Walker]

Re: 3 questions.. 1 picture..

I seldom work on any of those and its been a long time since I have, but I think thats where the pivot bolt for the inner shift mechanism goes. If your motor shifts okay then I'm wrong.

 

[KYHunter]

Re: 3 questions.. 1 picture..

1 MORE THING, Get a manual!!!! Or, your going to end up, with a motor not fit for scrap.<br /> No one minds answering questions, for anyone. <br /> But it makes it much easier , to explain if you have an idea, of what your being told.<br /> <br /> Good-Luck,<br /> KYHunter

 

[rickdb1boat]

Re: 3 questions.. 1 picture..

Walkers got it. Pivot bolt... You will need that....

 

[KYHunter]

Re: 3 questions.. 1 picture..

Walker, wouldn't , if the bolt you mention is supposed to be there and is not, all the lower unit oil run out? And allow water to get in?<br /> I'm not at all familiar with this motor , but theres got to be oil in that part of the lower unit/ gear case , right?<br /> KYhunter

 

[rickdb1boat]

Re: 3 questions.. 1 picture..

Yes, it would leak out. Is there any in there right now?

 

[floatingwoody2006]

Re: 3 questions.. 1 picture..

there is lower unit oil in the lower unit, and not leaking.. And the motor shifts fine..I think that pivot bolt is on the very bottom of the skeg. I do have a seloc manual, and it's not worth much to a novice.. Covers to broad a spectrum of motors...Thats why im stumped.. If i can find a picture of another lower unit of this vintage, i could tell but my manual only shows the reverse side in all the pics..<br />EDIT: it seems that that hole is misleading.. It has what look to be an indent where a washer would go around after the screw is inserted, but the hole does not go all the way thru as i first thought.. So the unit is sealed. Why it would be there is a mystery. My remaining question about the exhaush leak is still bugging me though. In the exploded diagram of the lower unit in my manual, it does not indicate the need for a gasket or seal here..Though i would think there should be. ANd KYhunter.. Im a pretty bright guy..and i am mechaically inclined, just not with outboards..i just didn't want you to think you were wasting your advice on someone who wouldn't get it. Thanks..

 

[rickdb1boat]

Re: 3 questions.. 1 picture..

FW<br /><br />You can go to the site below and find a blowup of the lower unit. BRP is down alot, so take a look here... Click on Evinrude/Johnson Store, Then Evinrude and continue on...I believe the pivot bolt is on the other side, same side as the fill/drain screws... Not sure what that hole is.... <br /><br />ishopmarine.com

 

[gatorred]

Re: 3 questions.. 1 picture..

the screw is top oil hole under lower unit is fill screw the oil is in bottom of this thing much like older 40 hp 3 is ware on that from being used exhaush leak might be bad seal in that lower part of the unit or blow back down from bad water pump? I seen it be normal too. the problem fixed but paint be scorched or blacken try running it in water tank and check stuff.

 

[Dave Abrahamson]

Re: 3 questions.. 1 picture..

Gator, I'm sure YOU know what you mean, and you probably have good advice for folks BUT...you need a translator man. 99% of the folks here have NO idea what you are trying to say most of the time. We get bits and pieces, but trying to decipher your posts is...well....trying! What is your native language? I don't mean to sound cruel or condescending and I apologize if I'm coming off that way. We like ya here dude. Keep posting. It can only get better...right? <br /><br />Dave

 

[Walker]

Re: 3 questions.. 1 picture..

I don't think that is the top oil screw. Look on the other side and the top oil screw should be above the cavitation plate.

 

[KYHunter]

Re: 3 questions.. 1 picture..

Woody, I didn't mean to be rude or condescending. <br /> I agree, the seloc manuals are vague to say the least. <br /> After reading my post,I see where I could have worded it differently.<br /> I apologize , if I offended you.<br /> <br /> Good-Luck , <br /> KyHunter

 

[gatorred]

Re: 3 questions.. 1 picture..

http://photobucket.com/albums/f325/gatorer/omc-stuff/?action=view&current=omc-3-40.jpg <br /> http://photobucket.com/albums/f325/gatorer/omc-stuff/?action=view&current=omc-2-40.jpg <br /> http://photobucket.com/albums/f325/gatorer/omc-stuff/?action=view&current=omcbig4.jpg <br />a pic worth it ok so or wrong side just print it out but were the drain screw on omc lower unit and part's in lower unit i don't have water pump pic's of that year either

 

[Walker]

Re: 3 questions.. 1 picture..

Soory guys. I just can't help but laugh out loud

 

[floatingwoody2006]

Re: 3 questions.. 1 picture..

Ky i was just having a moment.. I really appreciate the advice given by everyone here,, It makes this forum stand out among the rest. I got the water pump changed, im pretty sure im ready for the final test, but after dissasembling the lower unit, i cant get it back together tightly.. The saga continues i guess.. I had to put her in reverse to lower the bottom unit.. Now putting it together it just doesn't seem to go flush with the extention. Im sure ill get it but making the water tube, and whatever esle in there line up.. Whew.. maybe i should have brought her to a mechanic for 50 bucks an hour.. Sorry if i seemed short..and GATORRED.. any advice is welcome//Thank you!!

 

[KYHunter]

Re: 3 questions.. 1 picture..

Walker, LMAO . What'd he say anyway? Thats a hard one to decipher.<br /> Woody , no problem. If your doing it by yourself, it can be a bear. I allways grab a buddy to give me a hand. Its hard to line up everything , while holding the lower unit. Be carefull, not to force it. Its possible ,to get it together, with the tube not lined up right. At least, I found a way once. <br /> KYHunter

 

[marvxyz]

Re: 3 questions.. 1 picture..

You probably need to work the lower unit around a little. My 6hp has a pin in the upper portion of the drive shaft. I think this pin has to find it's proper position before the shaft will settle in right. Your's could be the same.

 

[marvxyz]

Re: 3 questions.. 1 picture..

I was working on the same problem this after noon.Since my engine is so small, I was able to sit it upside down in a five gal bucket to work on it. this made the job a little easier.