GT40 Tech - Fueling, Electrics, & Engine Cooling | Forum profile

Quote: Originally Posted by Big-Foot Ummm... Yeah!!! That's IT!!! Ditto my post above

Quote: Originally Posted by EGLITOM I want to permanently vent the cooling from the rear of my Super Victor intake. Just not shure which line size to go with. I will use braided teflon hose either in Dash 3 or Dash 4. Dash 3 = 3,17 mm ID ( 1/8"") Dash 4 = 4,76 mm ID (3/16") It will be vented to the top of my expansion tank. What is your reco for sizing Thanks TOM If you do that then I'd go small. My motor was plumbed so...

Only 3 things I know of that will cause Black Deposits in a water system like this; 1) Silver 2) Copper 3) Bacteria / mold

Thanks gents for that valuable input. I will go with a -3 line but will just drill a 2mm hole in the expansion tank where the adaptor bung is welded on. I also will vent from my radiatior with a -3 line into about the lower Third of my expansion tank. This way the line still run upwards all the time and can purge the air out, but in the cool down stage it doesn´t suck air back into the radiator. TOM

Quote: Originally Posted by Keith1 That's a bit worrying in an aircraft application don't you think? It is OK to go upside down as long as positive g is maintained throughout the manoevre, eg in a loop or barrel roll. For prolonged inverted flight where positive g cannot be maintained, special fuel and oil systems are required. My aircraft was solely for touring use and therefore without the special fuel/oil systems. It did however...

Saw the inside of a motor once that had similar deposits and I think it may have been in a fire or had gotten rather hot! Is the material tactile or rock hard?

Yes, there are some spectacular photos of original GT40s catching fire when the fuel geysered out of the caps- sometimes even without an accident. The tanks fill very quickly through those big caps and funnels- they also evidently empty right back up the same way very quickly, too.

Quote: Originally Posted by Lynn Erickson How do the water passages on the block look? is the black stuff in there too? yes a bit, but I have already removed most of it, and I think a good steam cleaning will do the rest, no water in the oil and the oil looked good, no other parts "infected" and have not seen a damaged head gasket, maybe it is a magic pil to "repair" a radiator. I will clean the block and head tomorrow so...

I came across this article comparing SLA batteries: Stealth 316 - Dyna-Batt Battery Pretty comprehensive descriptions!

Has anyone had any luck retrofitting their GT with ATL or Fuel Safe fuel cells for safety? (custom sized or off the shelf). I'd be interested in hearing about the ins/outs - one of my big concerns is frontal impacts and the resulting geiser of fuel that comes out of the fuel cap/neck.