REFLECTOR: J B weld

[John Dibble]

I used it on an inboard boat engine on a crack in the water jacket.  It 
worked fine.

John

On 9/29/2012 1:18 PM, Gattenby wrote:
> At what temp does J B weld get soft?  As in can I use it on an 
> automotive radiator?
>
> Noel
>
>
>
>
> On Sep 27, 2012, at 10:44 AM, "Jack Prock" <jackprock at wavecable.com 
> <mailto:jackprock at wavecable.com>> wrote:
>
>> Hi Geoff,
>> Before you go chasing the EGT on one cylinder, you should watch 
>> http://www.eaavideo.org/video.aspx?v=1316946190001
>> He gave a talk on EGT's at Oshkosh that was very interesting. It was 
>> about the mistakes people make with EGT's and what
>> they really mean if anything. If your CHT's are fine, you should be 
>> fine.
>> It is a bit long, but I highly recommend it before you start ripping 
>> things apart.
>> Jack
>> *From:* Geoff Gerhardt <mailto:geoff.gerhardt at gmail.com>
>> *Sent:* Thursday, September 27, 2012 4:31 AM
>> *To:* Velocity Aircraft Owners and Builders list 
>> <mailto:reflector at tvbf.org>
>> *Subject:* REFLECTOR: Flight testing going well...18hrs in, new video
>> Guys,
>> Flight testing is going well, I've got about 18hrs in.  I'm still not 
>> able to just go out and fly - always little fixes and tweaks (that's 
>> the fun part for me, tho).  I have learned, tho, not to immediately 
>> try to correct an issue, but learn more about it first.  I've been 
>> chasing a hot cylinder and have been trying to cool it with better 
>> airflow.  After reviewing data logs and confirming it on my last 
>> flight, I now realize that its likely a combustion problem.  The EGT 
>> for that cylinder is always high. Because of my aggressive airflow 
>> modifications, even in spite of that high EGT, the CHT is ok now.  
>> I'm going to pull out the injector nozzle this weekend and give it a 
>> good cleaning.  If that doesn't work, I may try to ream it out a 
>> little.  I tried to put an oil collection reservoir as I was tired of 
>> wiping oil off the cowling, but it introduced too much back pressure, 
>> and all of a sudden I had a bunch of oil leaks to deal with (a rather 
>> nasty surprise of seeing oil all over the inside/outside of the 
>> cowling after a 2.5hr flight).  Got all those cleaned up and removed 
>> the oil recovery system.  I think I'll try to vent the breather into 
>> the exhaust.
>> Other than those issues, its been going pretty well.  I've been 
>> playing with fuel settings, altitude and efficiency.  I typically 
>> head up to 8-10,000' and run LOP.  At 10k' I am usually ~150ktas, and 
>> 8gal/hr. I love the high-speed descent into the airport.  I report 
>> 10mi out to the tower and I'm in the pattern in no time - I think 
>> they're getting used to me zipping in as opposed to the C172's and 
>> warriors they're used to.
>> Here's a recent video I took taking off with a belly-mounted camera 
>> looking back.  Its kinda neat in that it looks like I'm zooming the 
>> lens as I gain altitude.  Yes, I know, it takes me a long time to get 
>> off the ground.  I actually have another prop coming that might 
>> help.  A Cozy owner had a left-turning Catto that he no longer uses.  
>> Its a 64x76, mine's a 66x74.  I suspect it'll get me off the ground 
>> much quicker.  He didn't want much for it, so it'll give me a backup 
>> - I'll send mine back to Catto at some point to get it repitched or 
>> just keep it for a long-range cruise prop as it is.
>> Geoff
>> (I uploaded it in high-res so make sure you switch to 1080p)
>> http://www.youtube.com/watch?v=JhNZBc-inbw
>>
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