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Old 12-31-2006, 02:34 PM
airbusmech is offline
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Keeping them flying!!
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StoneyCreek, Ontario ,Canada
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Re: Cans or Not

Quote:
Originally Posted by MERCURY DAYDREAM View Post
Where are they selling the white and exactly what name is used?
White is not even listed on the Loctite website as High Temp Loctite!?
Thanks for the help!

You may want to try a metal locknut (not a fiber locknut) or perhaps lockwiring the nut to the opposite bolt.This has worked for me in the past..You can drill the corners of the nut and/or bolts.You may also purchase them pre-drilled.Here are a few examples.
http://www.ultralightnews.com/pilots...safetywire.htm
http://www.auf.asn.au/scratchbuilder/safetying.html


Metal locknuts are designed to be used in a high temp enviroment but if vibration and not heat is the reason they loosen then we lockwire them for a foolproof install.
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Last edited by airbusmech; 12-31-2006 at 03:12 PM.
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Old 12-31-2006, 02:48 PM
JimC-MD is offline
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Drakien is my hero
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Frederick, Maryland
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Re: Cans or Not

Mercury,

If your head temperature is getting to 300 degrees you would have a 50CC boat anchor, I would think. Now, exhaust temps can be quite high, it just depents on how will the motor conducts the heat away from the bolt. I still think that if you get the nut tight it will stay put. I try to use loctite as a last resort. Did you use a split washer or a star washer under the nut?

One of the things I would really like to see it torque specs for all the fasteners on the engines we use. I have wrenches that can do even very light, inch pound ratings. Even and correct values are the best way to prevent movement, imo.
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Old 12-31-2006, 10:09 PM
jaguar bone is offline
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balsa, glue & gas
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United States, FL, Winter Garden
Joined Jun 2006
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Re: Cans or Not

I did use a split washer. The metal locknut is a good recommendation! I betting SkyCraft may be the place for finding that one!

Wiring the two nuts together would be quite a project which I would rather bury that the dead possum in ma back yard that do all that - plus the wire would have to wrap around the header which probably isn't the idea install.

I have no clue what temp the engine creates when running. If < 300o I'm probably good to go with the Loctite. If that fails - the the metal locknut!
Thanks for the suggestions!
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Old 12-31-2006, 10:11 PM
Shoe is offline
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Lower!
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Boyertown, PA, USA
Joined Jan 2006
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Re: Cans or Not

Mercury, sorry, my mistake on the white Loctite. It's actually Permatex. It comes in the same little plastic squeezy container. It's for high temperatures, and you get it at an automotive store. I think the stud idea is a good one though. Where there is a will there is a way.
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Old 12-31-2006, 11:35 PM
jaguar bone is offline
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balsa, glue & gas
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United States, FL, Winter Garden
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Re: Cans or Not

Hey no problem shoey! I'm going to check out the auto parts near by.
BTW, I always heard as " Where there is a will - THERE ARE RELATIVES!"


Jim C is saying it probably is not needed as the blue is up to the job but hey - I know I need some on the shelf!.
I bought an infra-red thermometer to help with brewing our own homebrew. ( Good reason eh?) I think I will take it to the field to see what temps these engines do run - for curiosity sake. One guy was going on about how the two cylinders on his motorcycle were running at different temps - meaning one cyl. was burning leaner possibly. Anyone done that yet with their twins yet??
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Old 12-31-2006, 11:40 PM
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South Carolina
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Re: Cans or Not

Cans.
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Old 01-01-2007, 07:11 PM
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Jay Florida
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Re: Cans or Not

Yea, twins usually have one jug hotter than the other.
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Old 01-01-2007, 10:09 PM
Shoe is offline
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Boyertown, PA, USA
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Re: Cans or Not

Mercury, I can verify that on my ole harley, the rear cylinder ran hotter. Reason was by it's location. It received hot air from the cylinder in the front. However, if by design multicylinder engines are "fed" by one carb, they should all run at the same temp. in theory.
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Old 01-02-2007, 02:35 AM
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Israel, Tel Aviv
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Re: Cans or Not

Quote:
Originally Posted by Jaybird View Post
Yea, twins usually have one jug hotter than the other.
except engines like the MVVS116 - the inlet manifold is specifically designed to over come this issue - but you pay a weight penalty
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