Re: Humming Noise

Posted by steve-52/200 On 2013/2/13 13:35:16

theres supposed to be a heat baffle between the exhaust header and the fuel pump ,it bolts on one of the manifold bolts with a little l shaped bracket it looks like a 1/2 of a pingpong paddle sort of , its in the manual ,i put reflective heat tape on both side s and also wrapped the fuel line in a heat reflective cover where it goes near the exhaust ,it looks a little stupid but what the heck ,i got ths from the racing doo dad section at the auto parts store
also having a phenolic block under the carb helps ,but the biggest cure for the hot start issue is a big battery the original speck is 1000 cch ,the 6 v jobs fron the auto supply are 600;s the closest thing around I found is a napa forklift battery with 900 ccw ,you have to mod the battery tray just a hair ,makes a huge difference and the car will laugh its way through a hot start from then on slao you need fat battery cables if your 6 v