Leaking Fuel

butangviber · 08-16-2006, 11:56 PM

I am leaking alot of fuel out of what looks like my fuel rail right behind cylinder #4. The engine i have is from a 97 celica. I was not able to fit the injectors from the mr2 so i used the ones from the celica. But i used the mr2 fuel rail. do i just have a leaky gasket or o-ring? I didnt replace the o-rings when i did the swap. The ones on the celica looked fine. The car runs great. It idles a little high (1800) but i still havent timed it yet.

Any ideas would be great.

BADMOJO!! · 08-17-2006, 04:22 AM

I would start troubleshooting the problem by first checking to see if the Celica injectors are 100% compatible with the MR2 fuel rail (I believe they are, but I couldn't tell you for sure).

Once you are sure they are compatible, make sure to replace all old gaskets/o-rings for the injectors/fuel rail with new ones and ensure everything is properly installed and tighted (could be as simple as that...actually for me it was).

If that doesn't work.....then go kick a tree to relieve your frustration and post how you broke your toe doing so later....(oops guess that's just me

)

Weasy2k · 08-17-2006, 05:03 PM

DId you soak the o-rings in canola oil or something to that extent before craming it in there? If not then you prob tore a o-ring gasket (i have odne that ALOT) they are a pain.

Just remove the manifold to get to that rail and fix the o-ring then DONT put the manifold back on till you fire up the fuel pump and see if its leaking again...i learned that from my multiple o-ring fights...

butangviber · 08-18-2006, 02:31 AM

oh you can soak them in oil? i didnt try that. I did replace all of the o-rings and other rubber items on the injectors today. I cleaned the fuel rail inside and out, cleaned out the ports where the injectors go and then reassembled the whole thing. I turned on the the key to the on position and didnt hear the fuel pump running. I looked at all of the injectors to see if any were leaking fuel. Nothing. So i started up the car. It ran great -timing. Then port #1 started to leak.
I thought it was maybe because i was using the stand offs from the Celica motor, but when i compared the stand offs to the ones from the MR2, the MR2s were taller. So the injectors are in there.
Maybe your right Weasy2K, maybe its the o-ring in the motor. I did put motor oil on the o-rings before installing them so i am not really sure.

Weasy2k · 08-18-2006, 08:30 PM

I prefer Canola oil becuase it helps expand the o-ring...i dunno the tech behind that but thats what im told by lots of people (one being the guys at RC Engineering

)

butangviber · 08-24-2006, 09:53 PM

Problem solved. I pulled the leaky injector and found that the o-ring was messed up. i replaced it and greased it up and stuck it back in. Now there is no leak! Thanks for all of the input and help guys.

Mister2.2 · 08-25-2006, 12:04 AM

Good to hear.

Weasy2k · 08-26-2006, 06:49 PM

woot it happens more then you think man...really annoying!

08-16-2006, 11:56 PM	#1 (permalink)
butangviber No Skills Join Date: Aug 2006 Location: Northern California Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	Leaking Fuel Solved I am leaking alot of fuel out of what looks like my fuel rail right behind cylinder #4. The engine i have is from a 97 celica. I was not able to fit the injectors from the mr2 so i used the ones from the celica. But i used the mr2 fuel rail. do i just have a leaky gasket or o-ring? I didnt replace the o-rings when i did the swap. The ones on the celica looked fine. The car runs great. It idles a little high (1800) but i still havent timed it yet. Any ideas would be great. Last edited by butangviber; 08-24-2006 at 09:54 PM.

08-17-2006, 05:03 PM	#3 (permalink)
Weasy2k 3.4L 10K RPM In the works Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,886 Thanks: 34 Thanked 76 Times in 65 Posts iTrader Rating: (6/100% )	DId you soak the o-rings in canola oil or something to that extent before craming it in there? If not then you prob tore a o-ring gasket (i have odne that ALOT) they are a pain. Just remove the manifold to get to that rail and fix the o-ring then DONT put the manifold back on till you fire up the fuel pump and see if its leaking again...i learned that from my multiple o-ring fights... __________________ -Johnny @ Sea2Sky Tuning - www.sea2skytuning.com http://www.mr2.com/forums/sea2sky-tu...-out-sale.html

08-25-2006, 12:04 AM	#7 (permalink)
Mister2.2 Cheese it! Join Date: Feb 2005 Posts: 6,220 Thanks: 106 Thanked 107 Times in 92 Posts Blog Entries: 1 My Google Map iTrader Rating: (3/100% )	Good to hear. __________________ --Josh MR2Trader.com Free Accounts to Buy and Sell your MR2 Parts! Deal of the Week: MR2Only Magazine, Get it NOW! Click Here. Ask me about Web Hosting Solutions, starting at $5.95 a month. 'I am at two with nature.' 'Students achieving Oneness will move on to Twoness.'

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08-17-2006, 04:22 AM	#2 (permalink)
BADMOJO!! 5VZ Whiplash..... Join Date: May 2006 Location: Chula Vista, CA Posts: 70 Thanks: 2 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	I would start troubleshooting the problem by first checking to see if the Celica injectors are 100% compatible with the MR2 fuel rail (I believe they are, but I couldn't tell you for sure). Once you are sure they are compatible, make sure to replace all old gaskets/o-rings for the injectors/fuel rail with new ones and ensure everything is properly installed and tighted (could be as simple as that...actually for me it was). If that doesn't work.....then go kick a tree to relieve your frustration and post how you broke your toe doing so later....(oops guess that's just me )

08-18-2006, 02:31 AM	#4 (permalink)
butangviber No Skills Join Date: Aug 2006 Location: Northern California Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	oh you can soak them in oil? i didnt try that. I did replace all of the o-rings and other rubber items on the injectors today. I cleaned the fuel rail inside and out, cleaned out the ports where the injectors go and then reassembled the whole thing. I turned on the the key to the on position and didnt hear the fuel pump running. I looked at all of the injectors to see if any were leaking fuel. Nothing. So i started up the car. It ran great -timing. Then port #1 started to leak. I thought it was maybe because i was using the stand offs from the Celica motor, but when i compared the stand offs to the ones from the MR2, the MR2s were taller. So the injectors are in there. Maybe your right Weasy2K, maybe its the o-ring in the motor. I did put motor oil on the o-rings before installing them so i am not really sure.

08-18-2006, 08:30 PM	#5 (permalink)
Weasy2k 3.4L 10K RPM In the works Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,886 Thanks: 34 Thanked 76 Times in 65 Posts iTrader Rating: (6/100% )	I prefer Canola oil becuase it helps expand the o-ring...i dunno the tech behind that but thats what im told by lots of people (one being the guys at RC Engineering )

08-24-2006, 09:53 PM	#6 (permalink)
butangviber No Skills Join Date: Aug 2006 Location: Northern California Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	Problem solved. I pulled the leaky injector and found that the o-ring was messed up. i replaced it and greased it up and stuck it back in. Now there is no leak! Thanks for all of the input and help guys.

08-26-2006, 06:49 PM	#8 (permalink)
Weasy2k 3.4L 10K RPM In the works Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,886 Thanks: 34 Thanked 76 Times in 65 Posts iTrader Rating: (6/100% )	woot it happens more then you think man...really annoying!