GT Type Fuel Cap for the Rocket is almost finished, Bat Handle Parts Cut,Formed & Ready 4 Tig Welding Options

[RON S.]

My next project for the rocket will be to convert the Fuel and oil caps over to the Blau 110mm for the fuel, and 80mm cap for the oil tank.

I just received these caps today from a guy over in Europe. I answered an old posting in the classifieds over on the bird board, and I shocked that he still had a few sets left. I got the caps and the filler necks. The Fuel cap is as received, and is actually polished Stainless Steel. The oil cap is polished Aluminum. Both are genuine Blau caps as stamped on the bottom. Made in Austria.

The caps in the pics are just laid there for size reference.

On the fuel side I am going to have the fuel cap go up through the hood, and have a locking gas gap hidden below the Blau cap when it is removed. The Blau gap will be secured with a lanyard to keep it from getting stolen. I'm going to raise mine up high enough so the cap is level with the hood line.

On the oil side I'll probably butcher up a 911 oil inlet to mount the cap to.

Both caps will have a handle made to remove them easily like the GT units. This looks to be a good fall project.

Ron

[Harpo]

TRE quoted me $215 (I believe) for just the cap. George quoted me $180 for one cap & one receiver. I preferr the stainless Steel but I like the GT handle from TRE. It looks like our very own brake extraordinare (Eric) makes the GT handle.

Thanks

DAvid

[shuie]

That looks really good. Nice work!

Im also going to use the stock filler neck plate. I'd rather have the smaller opening to hold the gas nozzle instead of a big 4"+ open hole where anything can fly or fall down into the tank. I'll cut it and weld it to the inside of my filler neck.

The last filler necks I bought from Dave at TRE were ~$35, IIRC. That is probably about what they cost wholesale. GeorgeK sold them at his cost when he was shipping them to the US back before 2005. This is the short metal pipe section attached to the 356B cap in the pic below. It needs to be attached to the tank, or an extended piece of pipe if you want to go through the hood.

I don't know what they cost now, but you could buy the Blau repro caps from the VW shops like Wolfsburg West, etc., for ~$20 a few years ago. I bought half-a-dozen of them to keep as spares. edit: I just checked Wolfsburg West and they are currently out of stock and listed for $33.

If you need to extend the filler neck ask a diesel service shop that installs truck exhausts for a piece of scrap pipe. They will probably have a scrap bin w/short sections of several different sizes of pipe. Just find a short piece that will slip fit the filler neck. 4" will be really close. The shop I went to gave me a section of stainless scrap that was perfect.

For the overflow bowl, you can use a cheap stainless dog or cat food bowl from Walmart for ~$2.

You still need to cut & fit everything, get it aligned, drill the hole in the hood, install some kind of lip on the hood, and then silver solder or braze it all together, but at least the components are available and not too expensive.

I started test fitting my parts last week. Gratuitous pics...

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