toyotasuprauk Posted March 28, 2007 Share Posted March 28, 2007 Does anyone have a guide on how to change the fuel filter? Does the tank have to be completely empty? Thanks. Link to comment Share on other sites More sharing options...
terribleturner Posted March 28, 2007 Share Posted March 28, 2007 Don't belive my Tank was empty when i had mine changed. Actually my engine was already out when i changed mine. But i'd start with opening the petrol cap to release pressure. Im sure you'll loose some fuel but make sure you catch it when it comes out and swop it over. Link to comment Share on other sites More sharing options...
Homer Posted March 28, 2007 Share Posted March 28, 2007 you can do it with the tank full. If the fuel pump isn't running it won't empty the tank. Some fuel will drain out though. Link to comment Share on other sites More sharing options...
Mike M Posted March 28, 2007 Share Posted March 28, 2007 You can also pull the EFI fuses and crank the engine a few times to relieve pressure. There was a step by step guide somewhere. Careful with that tapered pipe thread connection mine leaked afterwards even though i had it pretty tight. Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted March 28, 2007 Share Posted March 28, 2007 I think Jake gave some great advice on this to do it keeping mess down to a minimum. Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 28, 2007 Share Posted March 28, 2007 If it goes wrong you'll wish to God you'd paid someone else to do it Link to comment Share on other sites More sharing options...
paul mac Posted March 28, 2007 Share Posted March 28, 2007 If it goes wrong you'll wish to God you'd paid someone else to do it as Chris says the union nuts on the filter can be VERY tight so make sure you have good tools and a contingency plan if it all goes pete tong:eyebrows: Link to comment Share on other sites More sharing options...
toyotasuprauk Posted March 28, 2007 Author Share Posted March 28, 2007 I am paying someone else to do it, too messy for me! They want me to bring it in on empty. Last time they tried it had lots of fuel in the car and they said it kept pouring out (about 2 litres came out,) and something about one of the pipes being seized in one side of the filter. Hence they have booked me back in and asked for it with no fuel. I wondered if they was an easier way round it but it seems it’s not the nicest of jobs! Link to comment Share on other sites More sharing options...
Kranz Posted March 28, 2007 Share Posted March 28, 2007 as Chris says the union nuts on the filter can be VERY tight so make sure you have good tools and a contingency plan if it all goes pete tong:eyebrows: And for god's sake don't attempt to solder/braze/weld it if it leaks Link to comment Share on other sites More sharing options...
paul mac Posted March 28, 2007 Share Posted March 28, 2007 And for god's sake don't attempt to solder/braze/weld it if it leaks pmsl best use i've ever seen of that smilie, it should not piss any fuel out whether the tank is full or not tell the numptys to wait about 30-40 minutes to let all the pressure decay before they do it Link to comment Share on other sites More sharing options...
TrickTT Posted March 28, 2007 Share Posted March 28, 2007 Spray (soak) both unions with WD40 now and then change the filter tomorrow. Some fuel will spill out, just do it quickly. Link to comment Share on other sites More sharing options...
bignum Posted March 28, 2007 Share Posted March 28, 2007 My misses thought i`d been drinking when i did mine, petrol went down my sleave and everywhere, that v power is some pretty strong stuff, had me staggering around in the garage like i was pissed. Pay someone next time. Link to comment Share on other sites More sharing options...
ECK Posted March 28, 2007 Share Posted March 28, 2007 the thread on the fuel line is metal and the filter is a alloy the problem is the threaded part of the fuel line doesnt want to free from the filter so you push a wee bit harder and it ruines the thread on the fuel line make sure you have a 17mm thread tap so you can fix the threads if they bugger up!!! ive had to deal with this alot at my old work (toyota) Link to comment Share on other sites More sharing options...
Jake Posted March 29, 2007 Share Posted March 29, 2007 See this thread: http://www.mkivsupra.net/vbb/showthread.php?p=956914&highlight=#post956914 the thread on the fuel line is metal and the filter is a alloy Is alloy not metal then? Link to comment Share on other sites More sharing options...
Sheefa Posted March 29, 2007 Share Posted March 29, 2007 Does everything on these cars have to be so blooming complicated! Why can't I find a job I can do myself - not that I need to do this yet, I hope. Link to comment Share on other sites More sharing options...
terribleturner Posted March 29, 2007 Share Posted March 29, 2007 You could remove the ashtray and give it a clean that's easy. Link to comment Share on other sites More sharing options...
toyotasuprauk Posted March 29, 2007 Author Share Posted March 29, 2007 Thanks Jake some good advise. I know what you mean Sheefa I need to put my new HT leads on. Normally a really quick easy job but on the Supra, oh no need to move the throttle body out the way first! Link to comment Share on other sites More sharing options...
Mike M Posted March 29, 2007 Share Posted March 29, 2007 Thanks Jake some good advise. I know what you mean Sheefa I need to put my new HT leads on. Normally a really quick easy job but on the Supra, oh no need to move the throttle body out the way first! Nah, a bit of patience, fiddling and a sore back & knees you can get them in without removing that. Same goes for the plugs. Link to comment Share on other sites More sharing options...
Sheefa Posted March 29, 2007 Share Posted March 29, 2007 You could remove the ashtray and give it a clean that's easy. James, you would think so wouldn't you......but you're wrong!!! The previous owner has screwed it to the panel surround for some bizarre reason - ask TrickTT he was like 'What the heck?' when he helped me install RLTC! Link to comment Share on other sites More sharing options...
garethr Posted March 29, 2007 Share Posted March 29, 2007 It's the same crap job to change the Soarer fuel filter. Someone who works on a lot of them had this made up "one end is the same as the original, and the other is a compression joint that is made to connect to the original pipe once the twisted damaged pipe is cut off" Link to comment Share on other sites More sharing options...
VIL Posted March 29, 2007 Share Posted March 29, 2007 out of interest how often should you look to change the fuel filter? Link to comment Share on other sites More sharing options...
Sheefa Posted April 10, 2007 Share Posted April 10, 2007 Bump - anyone know how often you should change the fuel filter and would this cause unstable AFR readings if old? Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 10, 2007 Share Posted April 10, 2007 I'd say every 30,000 miles. It's VERY unlikely this is anything to do with your problem though. Link to comment Share on other sites More sharing options...
Sheefa Posted April 10, 2007 Share Posted April 10, 2007 I'd say every 30,000 miles. It's VERY unlikely this is anything to do with your problem though. Thanks Chris. Just ruling out possibilities. My AEM wideband shows that my AFRs are rich though on stock 440 injectors and I have no idea why or how this can be. The lamba sensor is mounted in the downpipe as near to the turbos as possible for an accurate reading. Any ideas Chris - faulty sensor maybe? Link to comment Share on other sites More sharing options...
merckx Posted April 10, 2007 Share Posted April 10, 2007 My AEM wideband shows that my AFRs are rich though on stock 440 injectors and I have no idea why or how this can be. If you've read my recent post and another you'll see that we've both just fitted the AEM A/F gauge and can now see our A/F ratios. Running rich at higher boost level than stock appears to be common or even normal with the J spec cars. Are you runnining an increase in boost over stock? Link to comment Share on other sites More sharing options...
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