flyrotary@lancaironline.net Mailing List Archive

Joe, I'm just not familiar with the 4 port Renesis - but I rather doubt the bolt or hole pattern is the same as the 13B. Someone on the list probably knows.

Thanks for the info on the price of 100LL there at Lancaster. I intend to drop back down before too long and will give you a call.

----- Original Message -----

From: Joe

To: Rotary motors in aircraft

Sent: Monday, May 16, 2005 9:49 PM

Subject: [FlyRotary] Re: Brazing Rods

Hi Ed,

Thanks for getting back on the brazing rods. I too enjoyed our conversation, reams of useful info for me. I thought your brazed joints looked great, so I wanted to confirm what you used. Since the intake system I purchased last August has not materialized and the Vendor returned my money, it looks like I have to add building an intake to my list of exhaust/turbo and cooling design and building.

I am wondering if you know, if the Renesis with a 4 Port intake (Auto/Low HP version) has the same pattern as other 4 port engines. I liked the way your intake looked and I know you have done a lot of experimenting in this area. I would rather follow in a master's shoes than perform numerous experiments.

Not sure what you are paying for 100LL to the North, the new FBO in KLKR is $3.45 and very friendly. If you are ever in the area again, please give me a call.

Thanks,

Joe

----- Original Message -----

From: Ed Anderson

To: Rotary motors in aircraft

Sent: Monday, May 16, 2005 9:28 PM

Subject: [FlyRotary] Re: Brazing Rods

Hi Joe,

Yes, I recall, enjoyed our chat. You are correct it is the HTS-2000 website http://newtechnologyproducts.net/order.htm

I purchased directly from the vendor using their $65 special for 1 lb of the stuff. I doubt that they would sell lesser amounts - but I have not asked.

In any case, that is the stuff and I have found it great to use. I tried at least 3 other aluminum brazing rods and got little more than puddles of the stuff sizzling around on the metal I was trying to braze but no joining. No-doubt my lack of technique - but this stuff is much less critical. I have brazed .048 thick wall 6061T6 to a heavy aluminum manifold casting with no problem. They tell you to brush with a stainless steel brush while brazing but I just brush it clean of scale with the brush initially and braze away(set too many wooden handle stainless steel brushes on fire while trying to brush while brazing - must be like chewing bubble gum and walking at the same time {:>))

I initially started out using the MAP gas because of hits higher heat content, but then found that regular (cheaper) propane would do just fine provided you had a high BTU torch (for heavy stuff like castings). You do have to set it for a high BTU flow if you are brazing anything heavy, but smaller torches work well for lighter stuff.

Here's a photo showing the bottom tubes brazed to the aluminum manifold casting and the upper tubes brazed to the 3/8" thick 6061 plate. Not too messy.

Ed A

----- Original Message -----

From: Joe

To: Rotary motors in aircraft

Sent: Monday, May 16, 2005 8:40 PM

Subject: [FlyRotary] Brazing Rods

Ed Anderson,

When we spoke a couple of weeks ago at KLKR, you mentioned a great brazing rod for aluminum. Was it New Technology's HTS-2000. If so may I ask where you bought, direct from the vendor or were you able to find a smaller quantity than 1 lb.. If this is not the vendor or product may I ask again what it was.

Thanks,

Joe

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