1960 Evinrude twinsport model 10020 question

[Dan_iv]

New here, first post.

Anyone know of where I can find a service manual cheaper then 40 bucks for a 1960 Evinrude Twinsport model 10020? I found one here -> http://www.marineengine.com/parts/parts.php?Year=1960&HP=10&Model=10020

But was hoping I could find one cheaper then that.

one more question, i've tried to find the value of this motor but haven't found any information as of yet. I'm in the process of cleaning the exterior up and it has a few small nicks and such but the engine appears to be in pristine condition. As it sits now it looks like all i'll have to replace is a few bushings and the plastic pull handle from some dry rot so I'd appreciate any feedback or ideas on what this motor might be worth.

thanks,
Dan

 

[tashasdaddy]

Re: 1960 Evinrude twinsport model 10020 question

that's the going price for the OEM manuals, same at outboardbooks.com. they are good dependable motors. not in high demand, if it were a 9.9 it would be worth double, due to the restricted lakes below 10 hp. Pristine condition, running good, $200-250.

 

[Dan_iv]

Re: 1960 Evinrude twinsport model 10020 question

Thanks for the quick response tashasdaddy, that's kinda what I was figuring but I thought I might ask around a bit to make sure.

 

[Dan_iv]

Re: 1960 Evinrude twinsport model 10020 question

Can anyone tell me what type of oil and what gas to oil ratio i need to use on this motor?

thanks in advance,
Dan

 

[tashasdaddy]

Re: 1960 Evinrude twinsport model 10020 question

motors prior to 1964 are 24-1 fuel to TC_W3 rated outboard motor oil.

 

[Dan_iv]

Re: 1960 Evinrude twinsport model 10020 question

Once again, you rock tashasdaddy!

 

[wbeaton]

Re: 1960 Evinrude twinsport model 10020 question

You need to replace the impeller too. Agree with TD on its value.

 

[HighTrim]

Re: 1960 Evinrude twinsport model 10020 question

Possible if you check www.ebay.com you could find a used one cheaper, but none the less, it will be the best 30 or 40 bucks you ever spend and will pay for itself a million times over.

A site useful in pricing is www.nada.com, although I dont always 100% agree with their estimates.

 

[tashasdaddy]

Re: 1960 Evinrude twinsport model 10020 question

HighTrim, i personally feel NADA boats is a complete farce. i don't know where they get there info. but for boats and motors over 3-5 years old. it is a complete waste,.

 

[wbeaton]

Re: 1960 Evinrude twinsport model 10020 question

HighTrim, i personally feel NADA boats is a complete farce. i don't know where they get there info. but for boats and motors over 3-5 years old. it is a complete waste,.

That's an understatement! Says my 1988 Johnson 30 hp electric start tiller is worth $230 and my 1987 Johnson 20 hp rope start is worth $130. Good luck prying either away from me for that!

Like most used vehicle sites it way under values. You have to look at replacement value. Look at comparable motors and see what they are selling for. Then take the mean price and you have what your motor is worth.

 

[Dan_iv]

Re: 1960 Evinrude twinsport model 10020 question

You need to replace the impeller too. Agree with TD on its value.

Thanks for the Tip! I guess I'm going to need to get the service manual to figure out how to replace the impeller, I found the part here http://www.vintageoutboard.com/JEImpellersLowerUnit/JOHNEVINImpeller_1.html for 16.95 which doesn't seem bad. As a first time outboard owner I have no clue where it is even located.

I spent Saturday morning trying to see if I could get it cranked up and the only way I could start it was to have some rabbit ears on and put it in gear with the throttle dang near wide open. I got it to idle a little bit but it seems to stall out on me when in neutral no matter how much I messed with the lean / rich low and high speed controls. I'm going to order the manual and a new impeller this week as well as buy some seafoam fuel additive to put in the fuel mixture.

Do you guys think it would have a problem idling if I got the fuel to oil mixture too lean? like 1:32 instead of 1:24? one of the shops I called said I should be running it at 1:50 and I'm not sure how that would impact the performance?

thanks again for everyones help here, you guys rock!


EDIT: I just noticed I can get an impeller half that price right here on iboats... Excellent!

 

[wbeaton]

Re: 1960 Evinrude twinsport model 10020 question

Run it in a barrel. It is not meant to run on muffs. Use 24:1 with 87 octane gas and TC-W3 2 outboard oil. To start, you must turn the handle all the way to the left. Don't worry if it doesn't line up with the "start" position on the handle. That's more like a guideline.

Sounds like you need to rebuild the carb. Kit is about $20. Also take a look at the coils. If they are original they need to be replaced. Check for cracks, discolouration and/or sweaty appearance.

The impeller is located on top of the lower unit at the base of the driveshaft. To drop the lower unit, start by removing the inspection plate on side of the exhaust tower. Inside, you will see the shift rod. There is a brass coupler on the shift rod. Remove the bottom screw. Remove the 4 bolts holding the lower unit on the leg and separate. Remove the water pump housing and remove the impeller. Check for wear. Replace the impeller and reassemble. Make sure to replace the o-ring on top of the driveshaft and grease the splines.

 

[Dan_iv]

Re: 1960 Evinrude twinsport model 10020 question

wbeaton, Thanks again for your tips and suggestions.

Next time I fire it up i'll put it in a barrel and not use the ears.

everything on this motor is original and selling it would be a waste in my opinion, so any other suggestions on parts that should be double checked or replaced would be great. I'll probably pull the lower end out tonight and take a peek at it as that doesn't sound too difficult at all.

One more note, I've never on any other forum gotten such a quick response and such great feedback so quickly, especially considering i'm so new to this forum! Thanks again guys!

 

[CATransplant]

Re: 1960 Evinrude twinsport model 10020 question

There has been a guy on eBay selling a CD copy of the big factory manual that covers all the one and two cylinder OMCs up to 1964. I had the paper copy, but included it with a motor I sold. The CD version is great and includes the entire monster manual. It's a valuable resource for anyone messing about with OMC's from the 40s-60s.

Search for OMC manual, and see if the guy's still around selling those.

 

[tmcalavy]

Re: 1960 Evinrude twinsport model 10020 question

Acmeoutboards.com has the same CD manuals, too. Sounds like it needs a carb cleaning. Here's how to set the high and low speed jets/needle valves: Top knob is slow-speed, turn it clockwise until it stops (go gently) then back it out 1 and 1/2 half turns. Seat the bottom (high speed) needle the same way, then back it out 3/8's to 3/4 turn. On a cold start, pull the choke out, turn the tiller handle over to fast and it should go on 3 pulls or less. As it runs, ease the choke in and keep it going until it warms up. Then adjust the needles a little each way until you find the sweet spot. Adjust high speed running fast and slow speed running slow and at idle. You'll have to adjust/tweak a little bit after you put it on the boat/in the water. After that you should be good to go, but remember/write down the settings after you get it dialed in...saves aggravation later when the kids/grandkids mess with the knobs, and they will. Change the lower unit lube, too. Now go catch some fish.

 

[Dan_iv]

Re: 1960 Evinrude twinsport model 10020 question

tmcalavy, thanks for the suggestions on using the needle valves and tweaking. I wish it were as simple as cleaning the carb and tuning the settings but as this hasn't seen the water for over 2 decades I'm going to go through it with a fine tooth come before I get myself stuck on the lake with a motor that doesn't run.

Not only that I don't have a boat to put it on at the moment either, so there is no rush trying to get it seaworthy.

Question about the impeller, is there a hard fast rule on replacing it? I plan on removing the lower unit and checking it out tonight but if it seems to be in good condition can I run with it for a while before I buy a replacement.

As far as the carb goes that's pretty cheap at 20 bucks to rebuild the little carb here but i'm not sure it needs to rebuilt yet.

thanks again guys!

 

[67Johnson6HP]

Re: 1960 Evinrude twinsport model 10020 question

Hard Fast Rule #1- If you don't know when the impeller was changed, Change it! As far as the carbs, you probably will have to clean and rebuild but see if you can get it running first. Don't remember if anybody mentioned checking spark & compression?

 

[wbeaton]

Re: 1960 Evinrude twinsport model 10020 question

If its totally original then you must also replace at least the coils. Carb probably needs a rebuild. Life span of an impeller is 1-5 years depending on who you talk to.