scottyMIz Posted August 21, 2001 Share Posted August 21, 2001 Well after the ride from the metro area detroit home which is about 2 hours from the z meet.I decided that the fumes from the exhaust where too much to handle anymore.So i decided to fix the big rust hole in the rear quarter behind the passenger back wheel.I had to take off the bumper to get to the hole and of course i had to drop the tank to do that.So i dropped it and heard some noises inside like something scraping and i knew exactly what it was.When i had first got the car it wouldn't run for crap it would but then die well it turned out to be the tank it had a whole crap load of rust loose moving around and plugging the resivour for the fuel to the pump.So i cleaned it a long time ago not that great but it worked.Well i knew it was the case again so i drained all the fuel in a can and filtered it all as it went to the gas can and it plugged the filter up baout three times!I only had about 2 gallons of fuel in the tank.The gas was all drained but there was still alot of rust left so i dried it with an air hose and let it ist while i did the body work(which looks really good)and came back to the tank i shook it sournd and banged on the tank breaking loose all the rust then i shook it to make the rust fall out.After a while i got tired and no more would come out but i could still see it.I looked for a better way then saw the shop vac bingo turned it on and got a wole lot more by sticking it in there as far as it would go.Now that the tank was clean i looked over everything else and saw the fuel line from the tank to the pump kinked a little and it was petrafied(sp?) so i got some new line and put it on it was alot more flexable and stronger.I looked over the pump too and saw that the side feeding the engine had the nossle turned alittle and it was blocking the hole inside restricting flow.So i loosened up the bolt and turned the nossle so it was all the way clear of any obstruction.Put it all back together and it feels MUCH better i haven't got a chance to really take it to the limit but just from what i could tell from driving around yesterday and today i like it.(still not even close to tim z)But it still feels quick to me.The injectors are going in anyway but now i shouldn't have a fuel problem with the new injectors.I left off the back bumper too man that thing was heavy.I'll get to the 11's some day. Quote Link to comment Share on other sites More sharing options...
Mike C Posted August 21, 2001 Share Posted August 21, 2001 So far a cheap fix! Some radiator shops can coat inside of tank to seal any further rest from accumulating. FWIW, shop vac electric motor and any trapped gas fumes might go boom... [ August 21, 2001: Message edited by: Mike C ] Quote Link to comment Share on other sites More sharing options...
Tim240z Posted August 21, 2001 Share Posted August 21, 2001 Scottie, I've heard that a good trick to loosen rust in a gas tank is to put a length of chain in there and shake it around. If you are worried about sparks and the fumes in the tank, start the car and run the exhaust gasses throught the tank for a while, that will do the trick. When my tank was leaking and I had to weld on it, I used this method, and I am still alive Tim Quote Link to comment Share on other sites More sharing options...
scottyMIz Posted August 21, 2001 Author Share Posted August 21, 2001 I've had to weld on a tank before and i'm still alive.I just cleaned it out like i did with the z tank and let it sit.I thought about it blowing up that's why i let it sit for a long while.If it does it again i'm going to take it to a shop to get cleaned and sealed.I still have to do a pressure check on it to see if it helped as much as it feels like it did.I have one more thing too,The fuel filter as suggested by 240 twin turbo i think it was him.The chain thing isn't a bad idea i might try that too.For now it will work for some time i think so if i have the rust problem again then i think i'll do it the right(expensive)way.I should hook up the vent hoses too,i unhooked them a while ago and should put them back on i can't fill the tank all the way cuz the air can't get out of the tank for the fuel to get in. Quote Link to comment Share on other sites More sharing options...
scottyMIz Posted August 21, 2001 Author Share Posted August 21, 2001 The thing i'm worried about is the resivour where the gas goes in the tank then to the pump.Will the coating if too thick plug the holes in it?I wouldn't get fuel at all that's why i haven't done it myself yet i was worried about that and damaging something with chain and other things that could be put in the tank to loosen rust. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 22, 2001 Share Posted August 22, 2001 On Bike tanks, I've used clean pea gravel (or Bird shot like you'd put in a metal shaping bag, available at gun shops for reloaders) to shake and loosen rust. There are also some tank sealers that the bike crowd uses on new steel tanks, it forms a layer in there, its called Kreem, not sure how much it would take to do a Z tank though. Regards, Lone Quote Link to comment Share on other sites More sharing options...
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