2-blade Flexofold Problems - SailNet Community
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post #1 of 53 Old 04-27-2015 Thread Starter
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Thumbs down 2-blade Flexofold Problems

Greetings everyone.

This winter i switched my propeller to a Flexofold 2-blade folding prop.
After getting the boat in the water the propeller problem started rather fast.
The 2-blade Flexofold won't unfold in reverse. I checked the gear, and it's sett that the propeller is the problem. I have dived on the propeller and there is no problems with the blades themselvs. They are lose as they should be and the propeller housing is thight to the shaft. I am realy disapointed in Flexofold as I have tried to send them several e-mails without respons. I wounder if anyone else have had a similar problem or have some ideas? I still have my old Eliche R. 2-blader prop. So I am woundering to change back to the old one.

Here are a video of the proplem, at first you could see how the boat reacts when reverse is enabled in a docking situation and then my "dive" on the Flexofold.
https://www.youtube.com/watch?v=-4bWJ5BnUvw

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post #2 of 53 Old 04-27-2015
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Re: 2-blade Flexofold Problems

Can you mount the GoPro on a boat hook or a stick & stuff it below water and show it spinning and not opening? My FOF was pretty anemic at best, in reverse, but at least it opened.
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post #3 of 53 Old 04-27-2015
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Re: 2-blade Flexofold Problems

Have my FOF prop for years now and reverse was one of the pleasant surprises for
me, opened right away and good power...so don't give up quite yet.
Excellent suggestion to try to video when going into reverse.
My prop is on a sail drive. When out of the water, in neutral, I could spin it by hand in forward or reverse and it would open within a turn or two.
If you have not already done so, go out in the harbor away from the dock
and experiment some, may need a little more rpm's when first going into reverse
especially if you have greased the gears.
Very disappointing with no response from your inquires.
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Re: 2-blade Flexofold Problems

"They are as loose as they should be"
I saw you open them up by hand, and I noticed some resistance.
If there was less resistance, it would open in reverse.
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Re: 2-blade Flexofold Problems

Quote:
Originally Posted by sony2000 View Post
"They are as loose as they should be"
I saw you open them up by hand, and I noticed some resistance.
If there was less resistance, it would open in reverse.

I could assure you sony2000, there is NO resistance.

It's like HUGOSALT say, when I mounted the propeller I could do a 1/4 turn on the shaft and the blades popped open both ways. I have even seen the propeller shut from haf open in reverse. I'll make a video on the propeller in use. I'll have it ready for you at the end of the week. (I'll try atleast! )

Thanks everyone for your reply. Really appreciated.

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Re: 2-blade Flexofold Problems

Then the two blades are mounted incorrectly.
They lay upon each other without much of a space between.
There are identifiers on the blade to show correct mounting.
On Martec, it can be a A that sits next to another A.
Or it can be a -- on the base, that aligns with a -- on a prop blade.
It would be nice to have the GOPRO spend more time on the blades, as they rotate or open and close. You need a selfie stick for your wife to hold, from the skirt.
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Re: 2-blade Flexofold Problems

Quote:
Originally Posted by sony2000 View Post
Then the two blades are mounted incorrectly.
This is a geared folder and there is no possible way of installing the blades incorrectly. It will only go together one possible way. The pins are not even adjustable and only go in one way. You can't over tighten or misadjust the FOF. It comes from the factory already machined to tolerance.


Quote:
Originally Posted by sony2000 View Post
They lay upon each other without much of a space between.
The FOF standard two blade has a space in between when fully closed.


Only the "racer" model closes completely flat.


The race blades and standard blades are also fully interchangeable on the hub, so you can't even mess that up...


Quote:
Originally Posted by sony2000 View Post
There are identifiers on the blade to show correct mounting.
No there are not... The only things marked on a FOF blade are the diameter 15", 16", 17" etc., pitch and rotation in either L or R.


Quote:
Originally Posted by sony2000 View Post
On Martec, it can be a A that sits next to another A.
Or it can be a -- on the base, that aligns with a -- on a prop blade.
Except we are not discussing a Martec here we are discussing a Flex o Fold...
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Last edited by Maine Sail; 04-28-2015 at 12:01 AM.
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Re: 2-blade Flexofold Problems

Are you saying that you have no reverse thrust at all or just less thrust then you had on the old prop? was the old prop a folding type or fixed? I have a flexofold on a saildrive and the reverse thrust seems to be about 3/4 of the froward thrust.
you might want to contact the rep in the US by phone. I just talked to him last week about the reason they did not put a zinc on my prop and he was very helpful.
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Re: 2-blade Flexofold Problems

Quote:
Originally Posted by sony2000 View Post
Personal attack deleted
I was not intentially being condescending, I apologize if you read it that way. I was just responding to factually worded statements that were not factual, when based on the prop in question.

If anyone was condescending I suspect it was you who kept insinuating the Op installed the blades wrong and they had too much resistance. He told you that was not the case and you continued berating him in a second post insisting he installed them wrong. I am sorry if you find actual truths about the Flex-o-Fold "condescending" and the person sharing those important little details [incorrect].

I find your personal attack uncalled for and rude.
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Last edited by Donna_F; 04-28-2015 at 10:02 AM. Reason: Deleted quote.
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post #10 of 53 Old 04-28-2015
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Re: 2-blade Flexofold Problems

Quote:
Originally Posted by SY JollyDodger View Post
I am realy disapointed in Flexofold as I have tried to send them several e-mails without respons. I wounder if anyone else have had a similar problem or have some ideas?
My idea is that you pick up the phone and CALL them!!!

Having a problem and sending them an email and then posting about it on a forum, yet not picking up the phone is getting you what?

Don't blow air up my rear, be useful and blow it at the sails!
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