motor flushing

[iggyw1]

I have a 1965 Evinrude 75 H.P. It has the bottom water suction that is under & behind the prop, and a small side pick up as well that has something to do with water suction when the motor is in reverse per my manual. My question is: My neighbor has a special fixture that he bought many yrs. ago to place over the bottom suction screen to run the motor in the driveway. I would like to buy one of those but don't know where to get one. Any ideas?? Also, is there another way to hook up water from a garden hose that anyone knows of without this special adapter?? I do not have a large enough container to run this motor and cannot get one 'cuz I have no place to store it, so that is not an option for me. Thanks!

 

[93ultra]

Re: motor flushing

If you are talking about the ear muff type of flush that attaches to the garden hose those are available here in iboats accessories for around 6 to 10 dollars. It's also available at most wal-marts and bass pro shops.

 

[iggyw1]

Re: motor flushing

If you are talking about the ear muff type of flush that attaches to the garden hose those are available here in iboats accessories for around 6 to 10 dollars. It's also available at most wal-marts and bass pro shops.

No, that's not what I am referring to. The 'earmuffs' are for the side pick ups on outboards, like I said, mine has a small bottom screen underneath the prop (under and behind it). The fixture my friend let me use is about 4 inches long and is like a "V" bunk shape with a garden hose attachment and springs and a plate that goes on the gravitation plate to hold it in place. It's for OLD motors. The earmuffs are the common ones I can get almost anywhere, but thanks for your response.

If anyone knows where to get the ones for the bottom suction tube that I have described, please let me know where to get it at. I cannot locate one anywhere, and nobody seems to know what I am talking about here. I am quite sure that there are still plenty of motors out there form the early 60's that need to use the fixture I need. Thanks!

 

[Pony]

Re: motor flushing

Like these? My understanding is that Tempo stopped making them. You will probably want to search ebay. I think I have seen a few there

 

[Bob_VT]

Re: motor flushing

Don't bother finding or hunting for an attachment............ Use a barrel or a plastic trash can. Yes some of the older motors needed to be submerged in water.

 

[Sea Rider]

Re: motor flushing

If water intake is located under middle anticav plate, check West Marine, Defender for those.

Happy Boating

 

[Pony]

Re: motor flushing

Don't bother finding or hunting for an attachment............ Use a barrel or a plastic trash can. Yes some of the older motors needed to be submerged in water.

That was my original thought....but the OP doesn't have anything big enough or the ability to store it. Although I guess you could store the can in the boat when not in use

 

[Chris1956]

Re: motor flushing

On a motor that old, flushing is really not necessary. What do you still want out of it? another decade?

If you must flush, you can try the following: Seal the water pickup behind the prop with elec tape. Remove the side water grating (where reverse water goes in). Now buy a std flusher and remove one of the "ears". Slide the other ear over the water intake hole, hook up the hose and give her full water pressure. Watch to make sure she is getting enough water. Remember to remove the tape before using the boat.

 

[iggyw1]

Re: motor flushing

On a motor that old, flushing is really not necessary. What do you still want out of it? another decade?

If you must flush, you can try the following: Seal the water pickup behind the prop with elec tape. Remove the side water grating (where reverse water goes in). Now buy a std flusher and remove one of the "ears". Slide the other ear over the water intake hole, hook up the hose and give her full water pressure. Watch to make sure she is getting enough water. Remember to remove the tape before using the boat.

No, I am not looking for another decade out of it!! I just purchased the boat and motor, and it ran 'HOT' the day I bought it. Water pump looked new. I changed the water pump (complete with housing) and I am not getting ANY water to the right side of the motor still. It is overheating and I thought maybe, just maybe, the previous owner had a bad impeller before he replaced it, and maybe pieces of the old one are lodged inside the water passages somewhere. Before I take off the power head and look around inside, I thought I would try to flush it, NOT to get another decade out of it, but to stop it from overheating so I can get another hour out of it! And, at times, I would like to just be able to run it in my driveway for a tune-up or minor adjustments or whatever. IF I do get another decade out of it (which I am really NOT after) that would be GREAT!!

Thanks for your advice.

I found, on-line, Honda has a contraption that they call "A water mouth" for the same reason I need one for my Evinrude. (bottom water suction on the Honda). The guys on that forum tell me that they have used it on an Evinrude, and it fits. It's almost universal for the motors that have the bottom water pick up that my Evinrude has. I think I will order one of those. The one that Tempo was making has been discontinued years back, but there is still a demand for them, whether you are after another decade out of your motor or not!

 

[iggyw1]

Re: motor flushing

That was my original thought....but the OP doesn't have anything big enough or the ability to store it. Although I guess you could store the can in the boat when not in use

I never thought of this simple solution! I will do this IF I cannot find the fixture I am looking for. It would be just soooo much easier with the hose hook up. I understand that Honda has a fixture for the bottom water pick ups that is almost universal for other motors too. Thanks for the good advice of keeping the large container inside the boat when not in use. I did not even think of that!! (so simple)!

 

[iggyw1]

Re: motor flushing

If water intake is located under middle anticav plate, check West Marine, Defender for those.

Happy Boating

Thanks, I will check with West Marine for what I am after. I hope they have it. I live about 15 miles away from one of their stores here in Mi.

 

[iggyw1]

Re: motor flushing

Like these? My understanding is that Tempo stopped making them. You will probably want to search ebay. I think I have seen a few there

View attachment 230948View attachment 230951

Pony,

That picture of the fixture for the water hook up is exactly the same as the one my neighbor let me use. (He won't sell it to me either). lol
But I know Tempo stopped production on these things years back, and I did check on E-bay and no luck! (that's where I found one for the Honda motors though, and I did some research on that one and I am told it would work on my Evinrude)!
I think there is still a demand for them today as there are still some older, good conditioned motors out there that need the fixture.

 

[iggyw1]

Re: motor flushing

Don't bother finding or hunting for an attachment............ Use a barrel or a plastic trash can. Yes some of the older motors needed to be submerged in water.

I did try my motor submerged in water at the boat dock, and it still overheated. I replaced the water pump impeller, housing and gaskets and seals, but still getting 'Hot' on one side. I am suspecting there are pieces of old water impeller in the water passages. I just purchased the boat and trying to get her running right. The boat, motor & trailer (1965 rig) are "show room" new! Great purchase even if I have to sink money into the motor!! Motor runs but overheats right now.

 

[Chris1956]

Re: motor flushing

Some of those old motors had a black thermostat box at the base of the powerhead in the rear. Water from both heads is fed into the box, thru very short heater hoses. Maybe you could drop the gearcase and backflush the heads thru the heater hoses, to get any debris out. You could also have a bad head gasket, I would think. What is the compression numbers on the hot side?

You might PM Joe Reeves and see if he has a solution, as well.

 

[iggyw1]

Re: motor flushing

Some of those old motors had a black thermostat box at the base of the powerhead in the rear. Water from both heads is fed into the box, thru very short heater hoses. Maybe you could drop the gearcase and backflush the heads thru the heater hoses, to get any debris out. You could also have a bad head gasket, I would think. What is the compression numbers on the hot side?

You might PM Joe Reeves and see if he has a solution, as well.

I did do that thru the T-stat block, but was not really sure if I was doing anything to help flush it that way. The compression testing I did was 110-110-108-106. (110/106 on hot side). The compression tester I have is not a good screw in type. It has a rubber end that you just kinda hold hard into the spark plug hole. (not the best test). No signs of water coming out of the plug holes or on the plugs themselves.

 

[Chris1956]

Re: motor flushing

That compression tester should be adequate. It does not show a bad head gasket, but there is still a possibility that combustion gasses are leaking into the cooling system, causing the overheat. Of course it could be other blockages in the cooling system on that one side.

I am not sure what to suggest. You might PM Joe Reeves. He is an expert on these motors.

 

[iggyw1]

Re: motor flushing

That compression tester should be adequate. It does not show a bad head gasket, but there is still a possibility that combustion gasses are leaking into the cooling system, causing the overheat. Of course it could be other blockages in the cooling system on that one side.

I am not sure what to suggest. You might PM Joe Reeves. He is an expert on these motors.

Thanks again for your help. I actually took it over to a motor mechanic the other day. He worked on a few of my motors in the past on things that were too complicated for me, and this too is one of those things! Just wondering how the exhaust gases could get into the cooling system? That sounds like what may be happening to my motor, but I am wondering if that is repairable or is something cracked in the motor to cause that?

 

[Chris1956]

Re: motor flushing

When the spark plug fires, there is a large jump in the pressure in the cylinder, to drive the piston down. Sometimes at this high pressure, exhaust can blow past the head gasket into the cooling system. The cylinder can test proper compression, as well.

 

[iggyw1]

Re: motor flushing

Thanks again for all of your replies. Hopefully it is an easy fix for the mechanic. It won't be cheap, but I am willing to pay to get it repaired if it runs good. I bought an old rig (boat, motor &trailer, 1965) But really it is "show room" condition (in looks anyway) LOL. The guy I bought it from bought it back in 1967 (he was the 2nd owner) and he used it " a few times" when his kids were younger for a picnic with him, his wife and kids on some Sundays! He always had it stored in a barn (heated thru winter here in Mich). Sat quite long without running. It runs good, but overheats pretty quick. I did not run it long at any time when I tried it.

I wouldn't even mind a large bill for the repairs if it runs good. I paid $2,000 for the rig. Really looks like new inside and out including the motor & trailer. I just sold a 1965 boat, motor & trailer with a 40 HP Evinrude that looked ALMOST new and ran terrific! That was an electric shift motor!!