What to do with those wing spar countersinks?

cjensen · Post by **cjensen** » Thu Feb 23, 2006 4:04 pm

i'm wondering what you guys are doing (if anything) to protect the countersinks cut in to the wing spar? i've seen a few are priming with self-etching primer, some are alodining just the holes with the pen and no primer over it, some are doing nothing.

seems like there's always a question that needs attention...

Post by **Spike** » Thu Feb 23, 2006 4:28 pm

I hadn't planned on doing anything personally.

-- John

captain_john · Post by **captain_john** » Fri Feb 24, 2006 8:58 am

I shot them with my detail gun before I skun the wings.

I also shot any scratches and holidays on the ribs while I had the gun out.

CJ

cjensen · Post by **cjensen** » Fri Feb 24, 2006 9:43 am

captain_john wrote:I shot them with my detail gun before I skun the wings. CJ

skun???

that's not a word CJ!

papakeith · Post by **papakeith** » Fri Feb 24, 2006 9:48 am

mebby it's not. . . the scary part is I knew exactly what he was saying.

cjensen · Post by **cjensen** » Fri Feb 24, 2006 9:54 am

i think that's the scary thing for ALL of us...we all know what he's trying to say all the time in that strange nwatheastunuh accent!

tshort · Post by **tshort** » Fri Feb 24, 2006 10:40 am

I understood that... but what's a holiday on the rib?

Thomas

papakeith · Post by **papakeith** » Fri Feb 24, 2006 11:06 am

strange accent?
What strange accent?

avaviat · Post by **avaviat** » Fri Feb 24, 2006 11:11 am

tshort wrote:I understood that... but what's a holiday on the rib?

Holiday=painter jargon for a missed (or insufficiently coated) spot in the middle of a job.

cjensen · Post by **cjensen** » Fri Feb 24, 2006 11:46 am

Papakeith wrote:strange accent?
What strange accent?

oh boy...i see we have anutha one!

papakeith · Post by **papakeith** » Fri Feb 24, 2006 11:53 am

ahyuh. . .

bmurrish · Post by **bmurrish** » Fri Feb 24, 2006 7:14 pm

Chad,

I shot a little self-etching primer into a dixie cup and dabbed the countersunk holes with a q-tip.

captain_john · Post by **captain_john** » Fri Feb 24, 2006 9:44 pm

I am currently up in Maine brushing up on my accent as I type this!

Ya can't get theyah from heyah!

CJ

cjensen · Post by **cjensen** » Fri Feb 24, 2006 10:09 pm

bmurrish wrote:Chad,

I shot a little self-etching primer into a dixie cup and dabbed the countersunk holes with a q-tip.

that's a great idea bill!! worked good for ya then?

cjensen · Post by **cjensen** » Fri Feb 24, 2006 10:11 pm

captain_john wrote:I am currently up in Maine brushing up on my accent as I type this!

Ya can't get theyah from heyah!

CJ

you're soundin' like my grandfather now! they lived in NH and my dad was born in brookline. he doesn't have the accent, since they moved to south florida when he was 2 and he grew up there, but my grandparents are strong new englanders.

cjensen · Post by **cjensen** » Sun Feb 26, 2006 11:51 pm

well, here's what i ended up doing...mask and SE primer.

turned out really nice!

captain_john · Post by **captain_john** » Mon Feb 27, 2006 6:45 am

Looks really uniform!

You will need to reprime when you countersink the rest of them for the skin dimples.

CJ

cjensen · Post by **cjensen** » Mon Feb 27, 2006 9:41 am

yep, i know. to do that, i'll just use something a couple of feet long to "block" the part i don't want primed since those holes are on the outer edge of the flange where the reinforement bars are. probably a piece of AL that i'll just hold in place so i don't have to mask it off again. farther down the spar will get a quick masking...masking the reinforment bars was a real PITA for me for some reason. don't want to do that again!

on a side note, as a result of my masking, i must have used an older roll of electricians tape, and i have black adhesive stuck to my spar in a few areas. it had to be old because my other roll that ran out never left a hint of adhesive.

any suggestions to get that off of there?

tshort · Post by **tshort** » Mon Feb 27, 2006 1:09 pm

I had a couple of spots where mine did that too - Goo Gone took it off without too much trouble.

One masking suggestion - can't tell if you did it or not: First mask the line with tape alone and cover the critical area; then go back and tape the paper towel or paper or whatever big stuff you're using on top of that with another piece of tape. That way you don't have to futz around with the paper and the tape and try to get everything lined up - you have a big target from the first strip of tape you laid down.

Thomas
-8 wings

cjensen · Post by **cjensen** » Mon Feb 27, 2006 2:34 pm

thanks thomas!!