Cotton AeroVee 0795

[sonex569]

For what It is worth, I used a hand pressure sprayer. Modified the hose to attach to pressure sender port. Kept pumping oil in until the oil was weeping out the push-rods. Felt it was well oiled before first start.

Regards
Dick
Sonex569

http://growgreenmi.com/1-gal-flo-master ... oCdQvw_wcB

[Bryan Cotton]

Dick,
Good idea - thanks for sharing.

Got the crank dropped in:


After a couple tries we got the dowel pins lined up and the case joined. No interference.

The pressure relief valves cooperated tonight. Not sure why. We are missing two main bearing stud seals. I've sent an inquiry to Sonex.

[Sonex1517]

[quote="Bryan Cotton"]

The pressure relief valves cooperated tonight. Not sure why. ]

Must have been the cursing....


Sent from my iPad using Tapatalk

[Bryan Cotton]

Robbie,
Your suggestion was the only helpful one I got on this topic. I think the valve overheard me telling the cursing plan to Adam and it shaped up. I did spend some time sanding and polishing the plunger to fit better, perhaps it was not down all the way on the first attempts.

[Bryan Cotton]

Adam and I were working away on the Aerovee when he spotted rule #7:


In haste, we pulled the engine off the stand.


You can see my two new valve spring compressors. The C clamp one does not work on the VW head because of interference with the valve cover boss. The other one works but is a hazard. Thanks to Robbie's helpful advice we got it to work. We pulled the valve, seat was clean, but we still had a light leak. I'm off to see if I have a 36mm socket in my collection.

I see we are neck and neck with Darick. To ensure we beat him into the air we plan to fly this year. I figure about December 142nd or so.

[Darick]

Bryan, you had me confused and concerned for a while but then I realized it was just a ploy to give yourself a possible lead. I won't waste anymore time trying to figure out what December 142nd is.

I, on the other hand, will give you a tip to keep you speedily progressing.

I noticed you have not painted your engine which can be problematic as they can be very temperamental, as you have already experienced with the uncooperative valve. An engine likes a nice good looking paint job. Yours is angry with you and will keep giving you problems unless it is painted. I suggest you take it apart and start over with a nice paint job.

I've changed my lift off date to early next year...or maybe sooner. :roll:

[vwglenn]

The only time my VW gets mad is when I ignore it too long. It's currently pissed at me.

[Bryan Cotton]

I splurged on the machined angle components and the prebuilt wingspar, so I figured why spend a bunch of dough on a fancy prop. I am a reformed scratch builder after all.


Here Adam is checking our end gap with feeler gauges before we selected shims.


We measured the shims with the Chinese digital readout calipers and then I busted out the old Brown & Sharp caliper to teach him how to use the good stuff. We are dreadfully close to closing up the case. Our final end gap was .005".

[Bryan Cotton]

Adam discovering the joys of permatex #3:


All torqued and ready for pistons:


We have not had a lot of time lately, but it is going together fast!

[Bryan Cotton]

I put a little grease on each of the plug threads, screwed them in, and torqued to 12 ft-lbs. All seemed good so I think I will skip the time-serts for now. Here Adam is checking the ring gap:


They were all good so onto the deck height. Ours was +0.00725" or piston down .01" from the top of the cylinder.