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1957 Ranger IV, Evinrude 30hp Lark 10 Sep 2022 17:15 #122472

Happy day!
As long as it has been sitting it could get better the more you run it.
Mike
1950 Skipper on Holsclaw Boat Roadster trailer
1954 Skipper w/ ’54 Johnson 10hp
1954 Deluxe Runabout w/ ’54 Johnson 25hp
1954 Vagabond w/ '57 Johnson 35hp
1955 Alumacraft FD on a Gator trailer
1956 Alumacraft FD
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1957 Ranger IV, Evinrude 30hp Lark 10 Sep 2022 15:49 #122471

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Well I can’t explain the excitement!

40km/hr, 4100rpm boat rips!

found new good condensers though original ones worked well..

in the end it was the packing on high speed needle causing issues… at least I believe that was issue!

so question I’ve seen two max rpm documents for this motor.. can someone tell me the max I should run? 4000 or 4500rpm?
I can tell by sound a bit around 4200rpm motor is spun out but maybe adjustment on needle. I don’t want to run to hard to start but temps are good water pumping and lots of oil so that’s not a concern as of yet but feel I can get a bit more out of her 

HELL YA GUYS THANKS FOR ADVICE AND PATIENCE WITH ME.. she runs 5th trip out.. if something changes who knows but going to run her fast and hard to get everything seated.
 
1957 Ranger IV, 1956 Evinrude 30HP
Love the Feathercraft!!


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1957 Ranger IV, Evinrude 30hp Lark 08 Sep 2022 23:19 #122446

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Np I’m in same boat, actually questioned myself wondering what if!
1957 Ranger IV, 1956 Evinrude 30HP
Love the Feathercraft!!


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1957 Ranger IV, Evinrude 30hp Lark 08 Sep 2022 20:31 #122444

You are correct. Brain was not fully engaged when that thought crossed my mind.
Mike
1950 Skipper on Holsclaw Boat Roadster trailer
1954 Skipper w/ ’54 Johnson 10hp
1954 Deluxe Runabout w/ ’54 Johnson 25hp
1954 Vagabond w/ '57 Johnson 35hp
1955 Alumacraft FD on a Gator trailer
1956 Alumacraft FD

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1957 Ranger IV, Evinrude 30hp Lark 08 Sep 2022 20:12 #122442

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MikeSo for packing.. I honestly don’t think any of it made it into carb but there’s always a chance, I did make sure when I pulled high/low that I cleaned throughly with pick and vacuum before putting anything back in threads.. the only thing I would have like to do is run tap through threads but didn’t have 7/16 with right thread pitch on packing nut, and wasn’t able to prove what the exact thread/pitch was for needle jet.. so held up..im confused a bit on fuel filter .. does gas go through jets then filter then into carb? I think fuel comes in from pump to filter then bowl then jets? I can’t see packing plugging filter but it certainly will plug a jet. So curious why running no filter would relate to packing?Vent yes almost to much vent I’m worried water may get into vent at this point.. I think my primer ball would show signs of being sucked in possibly as well so flow is there. thx for suggestions there’s definitely a chance of packing in carb but small chance and not full restriction as it runs really great.. and it’s not popping/starving sounding when WOT is being called for..
1957 Ranger IV, 1956 Evinrude 30HP
Love the Feathercraft!!


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Last edit: by cballer.

1957 Ranger IV, Evinrude 30hp Lark 08 Sep 2022 17:03 #122439

If your packings were chewed up they could cause a restriction. Try it without the filter.
How is your fuel tank vented? You may want to try running and loosen the cap and see if it has any effect.
Mike
1950 Skipper on Holsclaw Boat Roadster trailer
1954 Skipper w/ ’54 Johnson 10hp
1954 Deluxe Runabout w/ ’54 Johnson 25hp
1954 Vagabond w/ '57 Johnson 35hp
1955 Alumacraft FD on a Gator trailer
1956 Alumacraft FD

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1957 Ranger IV, Evinrude 30hp Lark 08 Sep 2022 16:05 #122436

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Something I may have over looked is fuel filter in carb glass bowl.. it seemed good when I cleaned bowl out.. not sure if a guy can service them much.. but could cause a restriction at WOT but doubtful on this but can try running without it just to verify.. just a side note.
1957 Ranger IV, 1956 Evinrude 30HP
Love the Feathercraft!!


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1957 Ranger IV, Evinrude 30hp Lark 08 Sep 2022 15:24 #122435

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Syd absolutely plugs have been pulled 50 times lol checked and also made old spark plugs into test plugs with large gap.. after speaking to boatboy I put old condensers back in and spark got better because new condensers weren’t cutting it!! I’ve got to track new ones down that haven’t been sitting on shelf for a long time.. but spark does seem to be sufficient atm ..Im still suspicious of my magneto cam for spark advance though.. im not sure where everyone else’s is set at but mine is maxed towards front of engine. That being said I’ve literally set it as per manual and advise I’ve got here.. made video in thread..
engine is running well though at idle right up to high throttle 
1957 Ranger IV, 1956 Evinrude 30HP
Love the Feathercraft!!


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1957 Ranger IV, Evinrude 30hp Lark 08 Sep 2022 14:49 #122432

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Have you pulled the plugs to make sure that they both have been firing. I have new ones be bad
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1957 Ranger IV, Evinrude 30hp Lark 08 Sep 2022 14:05 #122431

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Ok

Ray agree on prop also , vacuum cut was hooked up and motor ran so well I really don’t think it was running on one cylinder. Haven’t pulled spark plug yet.. walked away again!
carb is fresh, kit and float new. Linkage/choke all worked smoothly when I did have silencer off but haven’t ran without cowling in lake.

Dan yes I did play with once on trip , I was able to achieve a extra 100rpm and 2km/hr closing tap. It ran horrible either direction before/after that spot (bogging). Motor ran the best I’ve seen without coughing/puking/sneezing at that spot on high speed needle than it ever has.

John I’ve considered this disconnecting at coils but honestly I’ve ohmmeter wires while moving them, pulled clamps hold them in place and neither show any damage. Ones brand new the other has heat shrink on it to protect it. I’ve ran smoothly with and without them connected. Believe me that magneto has been on/off more in last couple weeks than it has in 60yrs I’m sure.

syd/Alan ok on packing I did end up replacing (nightmare) I’m sure I got all old (new)packing out with pick as well vacuum. I replaced with carb kit last year. But thought I’d pull because Alan mentioned it could be all cut up if needles were adjusted a lot.. and believe me last week I moved them a lot! When i pulled and inspected when verifying throttle butterfly and they were sliced up.. so new again with little action put on them.. so this very well could need some tighter seating?!?!
as for test prop I don’t have but do know someone that has one for this motor I possibly could borrow about 2 hrs from home.. is this something I should consider?

thanks gents I feel packing, run without cowling, then pull carb? Are next steps?

curtis



 
1957 Ranger IV, 1956 Evinrude 30HP
Love the Feathercraft!!


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