evinrude specks for rebuild 1957 fleetwin 7.5 hp

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Ok thanks

 

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

I solved my one of my problems with a striped head bolt . I taped it to the next size 5/16 thread size . It worked out fine now I can touque the head bolt down that I was thought was fixed in the first place .You never find out untill you start to touque them down that you find out its not holding or tourquing down. But now I replace all the other things I took off of the powerhead like manifold and carburator and magneto plate and so forth . With luck I sould have her running soon . I also need the know the mixture for the oil with a rebuild engine to use should I use 24:1 or 16:1 and what would be the amount of oil in oz . How much oil to gas and so forth , one gallon of gas to how much oil . You guys got me on what Im asking for .

 

[nwcove]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

for 16:1, go with good quality ,non synthetic, omc ob oil. 16 liters of gas and one litre of oil. ( i would add a few more drops of oil to properly seat the new rings tho)

 

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

How long should I run her to break her in , before I can open her up to full throttle . I was told not to do full throttle at first when the ring are new in her . Am I right . So how long will I have to run her in the test tank for her to be broken in . If all go's well she should run like a top .

 

[nwcove]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

jmo...DO NOT break your new rings in...in a barrel. you can get it running in a barrel, and dial it in somewhat, but break-in should be done on a boat in the water, varying throttle position and keeping an eye on plug condition. ( if you have a proper test tank and prop, you can do it that way).

 

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Well I got the engine assembled today , but Im not going to test her untill tommorow morning or afternoon . I'll let you guys know how its comming along . But the good thing is I have compression now The starter handle is tighter than before . Thats a good thing too . Now I have to fine tune her for best preformance .

 

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Well Guys I got her strated but she was hard starting . Im thinking one of my condensers are bad . She seams like shes running on one cylinder . But I checked for spark and she is hot blue . I have to adjust the carburator on her too . But I think I have some bad point or maybe one of the condensers are bad . She dont seam like she is running on the two of them . So Now I need to recheck the points out again and set them with a multimeter to get them dead on . But If i fix that she should run nice . Now she has good compression and is getting the fuel supply like she should be in the first place . Any pointer on checking out the conderser to see if one of them are bad . My points look good as the eye can see they dont look burn up or pited .

 

[nwcove]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

did you try pulling off a plug wire to see if it stalls? maybe post a video of it running, so the guys can help diagnose the issue?

 

[HighTrim]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Condensors are not easily checked without the proper test equipment, which you likely do not have. I have an old Mercotronic for this.

If you have a faulty condensor, the points will arc badly, causing a spark loss.

Im fairly certain your condensor value is 0.2 MFD, Ill check to verify.

Some tests you can do with a multi meter are as follows:

Place your meter in capacitance function and place one lead on the casing, the other lead on the condensors lead. What reading do you get? IF you get OL, or overload she is shorted out and will need to be replaced.

If your meter does not have capacitance, you can use the ohms function. First short out the condensor by touching the lead to the case. Now touch one probe on the lead, the other to the case, and watch the meter reading as the condensor charges up. A reading of OL (or infinity) in the ohms function means that she is likely not shorted or leaking and is likely ok. Now reverse the test leads and you should get the same reading.

These tests will tell you if your condensor is bad, will NOT tell you for sure if it is good, for that you would need the proper test equipment as mentioned, but if it does fail these tests at least you know you found your issue.

This may not be your issue. Give us a little more info on what she is doing when you try to start?

 

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Ok thanks I check it out . Im going to pull the flywheel and check the points and condenser . also Im going to make sure the slow speed jet is adjusted right , I read that if its off it can cause hard starting when the engine is cold .

 

[HighTrim]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

The starting point for the low speed jet is 1.5 turns out from lightly seated. Then fine tune from there. Some of these 50s OMCS like to be cold started a little on the rich side, just the way they are. If you need help with tuning the jet let us know,

 

[Joe Reeves]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Ok thanks I check it out . Im going to pull the flywheel and check the points and condenser . also Im going to make sure the slow speed jet is adjusted right , I read that if its off it can cause hard starting when the engine is cold .

Now, be sure to go back to day one, page one of this posting, then carefully read each and every reply, especially the ones pertaining to the ignition, setting the points, carburetor cleaning and adjusting, etc. A lot of good information there that will not be repeated, and may be a bit of exact information you might be looking for.

 

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

No problem joe . I need to set the points with a mulimeter . and the carb is clean as far as the eye can see . I cleaned the pasages out the best I could . Now for the ignition thats another baby . I need to take a real good look at the points and condenser . I also cracked the key on the flywheel and need to get another key from the dealer . The flywheel came lose and spun around and stopped on me why It was running . I retighten her and she worked . but I never took off the flywheel untill this eveing and found it cracked . So My touque was off and I did use proper touque whench to touque it down too .

I also seen that the flywheel is got some damage like it not the way it should be like it was when new annd cut for the flywheel key . But I have seen other people that had this happen , they replaced the key and retouqued the flywheel and it worked for them . Im unsure it it was like that when I got it .But im going to make sure the points are right , and the fuel is adjusted from the high side jets and low side jets too . It should run real good after this . when she was running for maybe 20 minutes or so , she sounded better that before . alot smother sounding to me in engine preformance . real nice too .

 

[kfa4303]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Here's a great link for rebuilding the magneto (ignition). You can get any of the parts you may need right here at iboats too.

http://www.outboard-boat-motor-repa...on 3 HP 1952-1967 Ignition System Tune-up.htm

http://www.duckworksmagazine.com/03/r/columns/max/07/index.htm

 

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Thanks for the info . I found the new keyway at the hardware store , Im replacing it . also the ingition timing seams find of funky to me . The engine is out of time for sure . Im going to retime her also the point after taking a real close look may need to be cleaned or replaced . Im going to try cleaning them with some sand paper first , if they dont work out Im replacing them with new ones . I did see some wear in the cam will that matter . But I think High trim told me that the cam should me fine . But Im going to see how the respond with the multimeter for proper working order . I'll use that webpage you gave me to set them on the money . Let everyone know How its going when I get done . But for the short time she was running she sounded good .

 

[HighTrim]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

I personally would not trust hardware store keys. Never tried one personally, but have responded to many threads on here about them breaking.

 

[nwcove]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

I personally would not trust hardware store keys. Never tried one personally, but have responded to many threads on here about them breaking.

+1 on that ! ( dont ask!! :facepalm

 

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Well she running fine and has pleny of power . She works fine in forward and reverse gear . I need to take her out on a boat and try her out to fine tune her on it for load . I did notice that she spits when she idleing in netural . I think when she out on the water she will run fine . By the way the points did need cleaning with sand paper , after I cleaned them up she started up fine . I also learned that you only need to pump the tank like three times to get her started any more you can flood the carb like I did on sunday night . So now I need to go out fishing with her . I bet she will idle down real good .


So she is fixed and has more power than when she had the old rings in her . I really like that motor the motors from the 1950's are cool and built like a tank too . I need only one more thing for her . The pull start handle is no longer in stock at sea way marine . Im looking for the oem if I can find her . They called me from sea way marine and said that the part number or pull start handle is no longer avabaible or in stock for that engine . If anyone can help me find one please let me know .

 

[RogersJetboat454]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

The pull start handle is no longer in stock at sea way marine . Im looking for the oem if I can find her . They called me from sea way marine and said that the part number or pull start handle is no longer avabaible or in stock for that engine . If anyone can help me find one please let me know .

Lookie here;
http://nymarine.ca/starthandles.htm

BTW, congratulations on a successful rebuild!

 

[duckland23]

Re: evinrude specks for rebuild 1957 fleetwin 7.5 hp

Hey thanks for the link to that site . Its 30.00 for the pull start handle . When I get some money , Im going to buy it for that motor . I may paint the motor cover to look like new again also . I like this motor very much . Im glad I got her to run the way I did . She sound very nice and motor speed in the barrel was very impresive also . She kicked the water out of the barrel testing her . Before I replaced the rings she was weak and not like now . Im a happy camper now . I hope to go fishing soon I want to catch my big musky .