Help getting my 67 Evinrude 3hp started
Home › Forum › Ask A Member › Help getting my 67 Evinrude 3hp started
- This topic has 84 replies, 12 voices, and was last updated 10 months, 3 weeks ago by
reivertom.
-
February 28, 2020 at 8:54 am #196087
put a piece of Tye wrap on the top plug wire so you won’t mix them up ! the old wires had a tag crimped over the top wire showing “TOP”
Joining AOMCI has priviledges 🙂
February 28, 2020 at 9:10 am #196093Get a genuine OMC/BRP carb kit with float. You probably just need a new gasket on the gas cap. Once you run it awhile at faster speeds, the smoking won’t be so bad.
February 28, 2020 at 8:31 pm #196153Next challenge will e the cooling system. Gather this is where the water should be exiting? It isn’t!
Impeller looked good.
-
This reply was modified 10 months, 3 weeks ago by
Elecmuso.
-
This reply was modified 10 months, 3 weeks ago by
Elecmuso.
-
This reply was modified 10 months, 3 weeks ago by
Elecmuso.
Attachments:
You must be logged in to access attached files.
February 29, 2020 at 1:13 am #196163looks isn’t a reliable test …. change the impeller !
Joining AOMCI has priviledges 🙂
February 29, 2020 at 7:36 am #196166I’ve been looking at a ot of youtube videos and none of them show much on the way of water coming out of those holes. Perhaps it is ‘normal’ and I should look for even a small flow (I’ll only run it for a minima time). Is there a way to tell if the engine is staying cool without actually observing a particular rate of water exiting the exhaust? Are these typical of ‘normal flow’?
-
This reply was modified 10 months, 3 weeks ago by
Elecmuso.
February 29, 2020 at 9:15 am #196177You won’t see a lot of water coming out – only a “mist” or “weeping”. Those little engines run a little on the hot side. You can check the block while running. Splash a little water on it. It shouldn’t boil off. Temp should be 145-160 degrees. I agree, always put in a new impeller on a new-to-you motor.
February 29, 2020 at 9:49 am #196178You will see only droplets of water which just happen to blow out by the exhaust. The flat plate on the side of the powerhead gets blazingly hot. There is fire on the other side of that plate. They also get pretty hot right around the spark plugs, but further out should be cooler.
Congrats on getting that folding Lightwin.
February 29, 2020 at 4:00 pm #196217Thanks for the help. Yes I will put in new impeller but I don’t have iit yet.
Are the folding lightwins particularly desirable at least from a collector’s point of view?
February 29, 2020 at 4:56 pm #196221A matter of personal interest, I suppose. Non-folders are plentiful. Not so many folders. Un-broken cases are hard to find.
February 29, 2020 at 7:27 pm #196284So I had another look and that 2nd video above is pretty much exactly what I get – so I guess it is in fact running normally.
I have one of these at work so I’ll take some measurements.
Non-Contact Thermometer with Dual Laser Targeting – QM7221
I have a feeling those temperatures are going to be scarily high though – you are right that flat plate on the side of the powerhead gets real hot.-
This reply was modified 10 months, 3 weeks ago by
Elecmuso.
March 1, 2020 at 1:52 am #196299Here’s what I measured:
1 and 2: 230 F (at one stage I was getting 300 F!)
3 and 4: 170 F
5 and 6: 170 FMarch 1, 2020 at 8:11 am #196304I never had one of those thermometers, in fact they probably hadn’t even been invented yet when I was doing this for a living, So I can’t comment too much on your readings. But I will say that the only ones I find surprising are 5 & 6. On the other hand, you are running in a can at unknown speed and time and with air bubbles mixed with the water So I’m not too alarmed — yet. Service the pump and get it on a boat and see what happens. And try not to worry so much.
The motor hasn’t been used in salt water has it? Or has it?
March 1, 2020 at 12:53 pm #196341I was given the motor by my father in law 20 years ago and it has been in storage since then, prior to that don’t know what use it had though I suspect it was freshwater use. Are they not compatible with saltwater usage? Or is it just not advisable on an old vintage.ouyboard like this one?
-
This reply was modified 10 months, 3 weeks ago by
- You must be logged in to reply to this topic.