Signature prop

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hmgm123
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Signature prop

Post by hmgm123 » Wed Mar 07, 2012 9:34 pm

I got a signature prop that has these bevel head allen screws. I ran it maybe an hour. Well I guess it was a good thing I decide to some upgrades on my motor. 3 of the screws started backing out. What do yall do to keep them in put locktite on them?? I sure didn't like putting that prop on with out checking those screws after I started it up for a min or two and recheck. I guess I should take the hub off and recheck to be on the safe side.

cowtown
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Re: Signature prop

Post by cowtown » Wed Mar 07, 2012 10:11 pm

take the hub and get it machined out to recieve grade 8 bolts , dont forget the star washers
http://usfth.tripod.com

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hmgm123
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Re: Signature prop

Post by hmgm123 » Wed Mar 07, 2012 10:22 pm

cowtown wrote:take the hub and get it machined out to recieve grade 8 bolts , dont forget the star washers
These are grade 8 bolts.

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Re: Signature prop

Post by cowtown » Wed Mar 07, 2012 10:29 pm

let me rephase this , have it machined out to put grade 8 hexhead bolts, get rid of the allen heads , ( IMO ) they suck
http://usfth.tripod.com

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hmgm123
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Re: Signature prop

Post by hmgm123 » Thu Mar 08, 2012 12:10 am

cowtown wrote:let me rephase this , have it machined out to put grade 8 hexhead bolts, get rid of the allen heads , ( IMO ) they suck
Yes they do.

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ptr34
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Re: Signature prop

Post by ptr34 » Thu Mar 08, 2012 5:55 am

Be carreful doing that. There not alot of meat in there. Make sure the take just enough to clear head of bolt.we don't do it for that reason
if u don't run dry .then should have gotten a bassboat
tons videos on YouTube ptr34

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hmgm123
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Re: Signature prop

Post by hmgm123 » Thu Mar 08, 2012 7:29 am

ptr34 wrote:Be carreful doing that. There not alot of meat in there. Make sure the take just enough to clear head of bolt.we don't do it for that reason
How about locktite instead?

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ptr34
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Re: Signature prop

Post by ptr34 » Thu Mar 08, 2012 7:39 am

They shouldn't come loose. They strip out easy. Thinking loctie would make it worst.
if u don't run dry .then should have gotten a bassboat
tons videos on YouTube ptr34

Larry
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Re: Signature prop

Post by Larry » Thu Mar 08, 2012 3:32 pm

The only time I have seen the tapered allen bolts come loose on a powershift hub is when the lugs are too long and bottom out on the hub. It will tighten down then as the lug burns into the hub it loosens the torque on the bolt and it comes loose. I like to have at least 1/8" clearance on the lugs. It seems like there is alwas 1-3 of those tapered head bolts that require drilling to get out in my experience......

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RJ
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Re: Signature prop

Post by RJ » Thu Mar 08, 2012 4:32 pm

Here is WW installation guide http://www.airboatprops.com/Installatio ... ctions.htm Make sure your lugs are the right length. If too long the bolts will come loose. Happened to me when I first installed a Power shift, had to cut the lugs down(specified in the installation guide). I also have had the allen heads come off the bolt because of the harmonics. The bolting hardware needs to be changed after recommended hours.

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Deano
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Re: Signature prop

Post by Deano » Thu Mar 08, 2012 7:37 pm

x2 what Larry said. Don't matter what flavor bolt you got, if it's to long, you're gonna have a problem.

The tapered design allows for a larger mating surface than a regular shoulder bolt.

Never had a problem with them. Did you torque them and then re-torque them to spec?

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