thru this. Mostly its clean it right, do it again, then seal it up with
a reliable bonding material, and wait until it cures.
Reliable bonding materials are:
The original Lycoming recommended goo.
Pliobond.
Loctite 515 combined with 7649 for surface prep.
Some others off this group recomend proseal which is plausible but
unconfirmed.
Cleaning fluids for the purpose are:
MEK
Acetone
Loctite 7649
Final ingredient - extreme diligence in cleaning it.
Thanks to all who made their recommendations.
Rick Harper wrote:
G'day Gaz , Wayne & Everyone .....
OK ...... I finally got to go flying today - and the air was like GLASS !!!
Flew down the coast to visit Jim Stonier (a fellow Rebel builder) - and landed on his !$#%&!# bumpy cross strip ... (I'll be using the loooooong / smoother one next time ! ...
Cruising along at 105 Knots in ULTRA smooth air was a HOOT
Once I get the new spats molded up & made - (along with the tailspring shroud I'm planning to make - and the tailwheel spat I just finished) I'm hoping to pick up a few more cruise knots as well !
I'm also just putting the finishing touches to my new three bladed / ground adjustable hub - which will take my new Ozzy made Carbon Fibre blades - (l....i...k....e...... Warp Drive ones - sorta - but with HUGE blade roots - ( so they won't give up the ghost - like my original WD ones did after 5 hours !!!) and 6" wide blade faces - just like a real Sensenich profile ...
but, I digress .................
Anyway - I got to look at the stuff I resealed my new Crankshaft front seal in with - (which hasn't leaked a drop since) ....
The 2 chemicals are both made by Loctite :
The sealant is Loctite 515 "Flange Sealant / Master Gasket"
The Accelerator is Loctite 7649 (which says it's a "Primer N replacement")
The destructions say to use the 7649 to wash & prepare both surfaces - and then wipe it all off
Then it says - once they are clean , to coat both parts again with the 7649 ....
Then to coat one part with the Loctite 515 - ( but to do BOTH parts if they have "rough surfaces")
Assemble & wait 30 minutes (at room temperature) for the 515 & Accelerant to do their stuff & cure - (longer in cold conditions)
Hope this help all you leaky front seal people !
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