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tooo much fule Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Engine Troubleshooting trans am crazy Novice Jun 10, 2005, 8:38 PM Post #1 of 5 (3056 views) tooo much fule Sign In i have a 86 trans am and i just put a new rochesrtr quad jet on it and i think its getting too much fule the exuast reaks of gass how do i adujst it i can see all the screws to adjust it i just dont know what one to turn? Tom Greenleaf Ultimate Carjunky / Moderator Jun 11, 2005, 4:11 AM Post #2 of 5 (3053 views) Re: tooo much fule Sign In The idle mixture has needle valve screws with tamper proof plugs - and takes a special socket to turn them after you chisle the plugs out. That only effects idle mixture and part throttle. The main adjustment for mixure richness is adjusting the floats - but you need to take the top off and at it's age you weigh the floats first as some can saturate with gas and the adjustment will be ineffective - the needle valve could be not seating right from age or debris and can make the bowl over fill. It's more likely that it's running rich because the choke is'nt shutting off, or floats have sunk. Choke pull offs need to be checked. Also the round black choke spring may not be heating up - the connection there needs to be good and checked for 12v with ign on. With a cold engine and ignition in run position you can feel it heat up and watch the choke open. The last Quads were fairly tamper proof for automotive use. These carbs were tricky to take apart and rebuild and need some special tools. The DIY kits won't include the pull offs and they used to be expensive. Check the price of an exact replacement vs the time and trouble if you really think too much is wrong with this one. It could just be vacuum leaks or choke heater/connections. So do some checking, decide from there, (edited a couple typos - and misread orig post) (This post was edited by Tom Greenleaf on Jun 11, 2005, 12:44 PM) trans am crazy Novice Jun 11, 2005, 9:27 AM Post #3 of 5 (3051 views) Re: tooo much fule Sign In this is a new carb i just put it on Tom Greenleaf Ultimate Carjunky / Moderator Jun 11, 2005, 12:30 PM Post #4 of 5 (3050 views) Re: tooo much fule Sign In Sorry - I didn't catch the word new in the post the first time. Do you mean brand new, rebuilt or used one new to your car. There's a defect rate with any but some rebuilders only replace just the items needed and don't do the whole job. Try to rule out other causes and take it back. You really shouldn't have to mess with it either new or rebuilt. I have had some that it was just easier to make minor adjustments than the hassle of a return. You did say you could smell gas though, and if not a leak it kind of points to the carb. motorheadII User Jun 11, 2005, 7:20 PM Post #5 of 5 (3045 views) Re: tooo much fule Sign In Did 86s have feedback carbs? If so, there might be a problem with the MC solenoid. Listen to the carb at idle for a rapid clicking sound.   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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