Small problem? - Toyota Nation Forum : Toyota Car and Truck Forums

White89SR5 · 01-13-2006, 11:33 PM

Well my problem goes like this. Anytme I make a hard U-turn my engines dies until the car straightens out. My thinking is that this happens because the car is Carb'd so the fuel may be splashing around and not making it to it's intended destination plus the intake manifold may have alot of crap built-up from all of he miles which maybe causing a problem as well. If it is the carb what can I due to stop this, besides stop making U-turns which is not really a possiblity because for some resean there seem to be a lot of places I go where I have to make a U-turn. If it is the intake manifold I thought about running and induction system cleaner from work, but I am scared the it will knock something loose not only in the intake manifold but also around the piston rings because I am sure there is a ton of stuff around those keeping them sealed since the car has 242,820 miles on it without a rebuild, so to get around that I am just going to pull a manifold from the junk yard clean it out and maybe try to port match while I am in there and see if that helps. If anyone has any other suggetions or comments it would be great to hear them!! Thanks in advance!!

Raddman · 01-14-2006, 12:38 AM

Quote:

Originally Posted by White89SR5

Well my problem goes like this. Anytme I make a hard U-turn my engines dies until the car straightens out. My thinking is that this happens because the car is Carb'd so the fuel may be splashing around and not making it to it's intended destination plus the intake manifold may have alot of crap built-up from all of he miles which maybe causing a problem as well. If it is the carb what can I due to stop this, besides stop making U-turns which is not really a possiblity because for some resean there seem to be a lot of places I go where I have to make a U-turn. If it is the intake manifold I thought about running and induction system cleaner from work, but I am scared the it will knock something loose not only in the intake manifold but also around the piston rings because I am sure there is a ton of stuff around those keeping them sealed since the car has 242,820 miles on it without a rebuild, so to get around that I am just going to pull a manifold from the junk yard clean it out and maybe try to port match while I am in there and see if that helps. If anyone has any other suggetions or comments it would be great to hear them!! Thanks in advance!!

Does this only happen when you have a half tank of gas or less? Cause my bud has the exact same problem with his 95 grand prix......He has a spilt his line going up to the fuel pump in his tank from the bottom filter/intake, just a thought...We plan to replace it when it gets warmer...Radd Guy...

freakinbox · 01-14-2006, 01:33 AM

I'm pretty sure thats not why it's doing it! I have the carbed sr5, 89 also. I drive the shit out of it, slidin throug corners and such. Only time it stalls is when I forget to push the clutch in when I screw up. I can turn the wheel fully left and right, the rpm drops but it doesn't stall. What rpm does your car idle at?

White89SR5 · 01-14-2006, 01:55 AM

No it happened the other day an di had a full tank! I can turn the wheel lock to lock too!! I am talking about when the car is in motion during a U-turn!!

karugs · 01-14-2006, 04:31 AM

But if you straighten it out the car is still in motion so the fuel would still be pushed backwards. Why not check the more direct connections first, P/S pump, belt and such?

White89SR5 · 01-14-2006, 07:23 AM

When I turn the wheel the rpms increase so I don't think that is what is causing it to stall. when I said straighten out I meant when the car comes out of the U-turn and the car levels out.

Flashmn · 01-14-2006, 07:28 AM

Carbs dont have problems with fuel sloshing in the fuel tank, because carbs have the float bowl, which in essence is an auxiliary surge tank.
I'd say the problem has something to do with the needlevalve and floats.

White89SR5 · 01-14-2006, 08:01 AM

Can the needlevalve and floats be adjusted on this carb and if so how?

rezzle · 01-14-2006, 12:36 PM

Unless the needle and float are way out of adjustment there should no no reason to adjust. But adjustment is easy.

First buy a manual for your car/engine type or get one from a library and read up on it.

Second buy a new needle and seat, if you are going to take the carb off and remove the floatbowl you may as well replace these anyway.

Then you have to remove tha carb, flip it upsidedown and remove the bottom half of the floatbowl. Remove the float pin take the floats out and replace the needle and seat. Put the floats back in and make sure the pivot pin is secure. Then you just measure the float height and bent the tab to adjust it to spec. by measuring from the top of the carb float bowl to either a line on the floats to the top of them, carb still upsidown, replace the float bowl and reinstall the carb.

Of couse all of the foregoing is to be ignored if your manual says otherwise ;o

I had a freind who used to have and earlier model Tercel who had the same problem but on his car it only happened when he was making a hard left in autocross, never happened under normal driving.