supra_ufo Posted January 19, 2013 Author Share Posted January 19, 2013 It's the exhaust gas control valve. The bolts holding it to the manifold are often seized and prime candidates to shear off, only remove if vital. I'd tow it to a ramp and get a pro to sort it out, there should be no need to remove it at all, but there again, if you can't get purchase on the now smaller length drain stud.....If it will come off there are no real implications at all, it's not a grenade! I would say it's approaching engine out time to do a proper repair job. Now you can see why I won't quote fixed prices on some jobs It might be easier and safer to remove the valve's sandwich plate by undoing the three nuts on the through studs. You may find them tight. I am still determined to sort this problem out, I created it but then again I don't want to make it worse lol On another note I managed to drain the coolant and remove the bottom & top hose ready for new ones Quote Link to comment Share on other sites More sharing options...
supra_ufo Posted January 20, 2013 Author Share Posted January 20, 2013 (edited) Just an update, got the bolt off! Put the nut back on and then another, jammed them together and was able to twist the bolt off. A mechanic gave me the idea... It appears there is no gasket on at all or any paste (see pic) I have searched on http://www.toyodiy.com & http://www.utoyot8.com for the part number for the gasket. Does anyone know what it is? Or help I will be visiting Toyota mid week so could ask them but I have a feeling they will want chassis number etc and since mine is an import it wont come up :-/ The water return pipe seems like it just had paste on it, I believe I have found a part number for the gasket though (16347A) Does anyone know the part number for the 12mm bolt as pictured on page 3? Edited January 20, 2013 by supra_ufo (see edit history) Quote Link to comment Share on other sites More sharing options...
supra_ufo Posted January 22, 2013 Author Share Posted January 22, 2013 Bump... Help Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 22, 2013 Share Posted January 22, 2013 (edited) Just ring the Toyota dealer up and he'll find the number, you'll have to ring him to place the order anyway! Same parts on a UK car, and if they won't look up an import VIN number go to a dealer that wants the business, most are struggling to meet their parts targets, and need to pull their fingers out. And take those damned gloves off, you can't work properly dressed like you are off up the Eiger I suspect two studs from an N/A head casting will do, not sure what they hold on, possibly a water pipe, I have one for stripping, I'll try and remember to look what they are actually for. If my gaskets are still in their Toyota bags I'll write down the part number if you get really stuck. Edited January 22, 2013 by Chris Wilson (see edit history) Quote Link to comment Share on other sites More sharing options...
supra_ufo Posted January 22, 2013 Author Share Posted January 22, 2013 Just ring the Toyota dealer up and he'll find the number, you'll have to ring him to place the order anyway! Same parts on a UK car, and if they won't look up an import VIN number go to a dealer that wants the business, most are struggling to meet their parts targets, and need to pull their fingers out. And take those damned gloves off, you can't work properly dressed like you are off up the Eiger I suspect two studs from an N/A head casting will do, not sure what they hold on, possibly a water pipe, I have one for stripping, I'll try and remember to look what they are actually for. If my gaskets are still in their Toyota bags I'll write down the part number if you get really stuck. :love:Chris! The gloves are for safety (i work for an engineering company and have seen some horrible things) and it was like 0-5c in my garage too! My local dealer is not that far and the parts dept close at 530 so it will have to be a friday for me when i get a chance to leave work on time.. thanks Quote Link to comment Share on other sites More sharing options...
Iky Posted January 25, 2013 Share Posted January 25, 2013 Part number for the stud is - 90116-08158 OIL DRAIN Part number for the gasket is - 15471-46010 From toyodiy.com Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 25, 2013 Share Posted January 25, 2013 I reckon inlet manifold studs out of an N/A head will work. Use K nuts to get the small hex size with the 8mm x 1.25 thread size. I have studs and nuts. Quote Link to comment Share on other sites More sharing options...
supra_ufo Posted January 26, 2013 Author Share Posted January 26, 2013 I went to see Toyota yesterday with my old stud and nut and printed pictures showing gaskets and parts I needed. The bloke said he needs a few days to speak to colleagues. He didbt want to order the parts as they are non returnable. Iky ill check your part numbers. The stud is the difficult one. Chris are they for sale? :-) how far are you from Ellesmere Port? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 26, 2013 Share Posted January 26, 2013 Anything is for sale. I am at SY13 2BT I may even have the exact studs in some old turbo sections. You need a different Toyota dealer. Quote Link to comment Share on other sites More sharing options...
supra_ufo Posted January 26, 2013 Author Share Posted January 26, 2013 lol the guy seemed enthusiastic, He came up with this diagram but wasn't sure if the ends were torx This is the inlet manifold you was talking about right (looks like a TB)? I might just get them ordered and the ones Iky suggested seems close enough. Quote Link to comment Share on other sites More sharing options...
Iky Posted January 26, 2013 Share Posted January 26, 2013 Those are exhaust manifold studs. On toydiy its on the next page with diagrams of the turbo units. Quote Link to comment Share on other sites More sharing options...
supra_ufo Posted January 27, 2013 Author Share Posted January 27, 2013 Those are exhaust manifold studs. On toydiy its on the next page with diagrams of the turbo units. [ATTACH=CONFIG]163573[/ATTACH] Just realised that in chrome you do not see the diagram, you need to use IE. Quote Link to comment Share on other sites More sharing options...
supra_ufo Posted February 4, 2013 Author Share Posted February 4, 2013 thanks for all the help guys. Replacing those gaskets did the trick. Whilst I had drained all the coolant I decided to replace top and bottom hoses and replace the thermostat with a Whifbitz 72c one. Now I need to put it all back together and start a new thread of another possible issue lol Good shout on the gasket Iky. Feels great fixing something yourself! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 4, 2013 Share Posted February 4, 2013 Why on earth would you want to fit a cold `stat? Glad you got it sorted! Quote Link to comment Share on other sites More sharing options...
supra_ufo Posted February 5, 2013 Author Share Posted February 5, 2013 Why on earth would you want to fit a cold `stat? Glad you got it sorted! "Garage Whifbitz 72 degree thermostat for the 2JZ & 1JZ engine. The lower termperature thermostat will help to reduce & maintain a lower coolant operating temperature, a great modification for any tuned Supra, especially for anyone who wants to track there car." Saw it on sale new in the For sale section and it was cheaper than the OEM so I bought it... My Supra is not tuned yet but I plan a BPU.... Are these bad for the car? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 5, 2013 Share Posted February 5, 2013 They are for very specific situations, the engine was mapped at a certain temperature, and the oil system was designed to achieve a running oil temp in harmony with a given water temp (the two are intrinsically linked due to the Modine cooler under the oil filter). You will not drive condensation out of the oil, the engine will run on the wrong part of the map for design performance, economy and emissions, and you may well see excess engine wear. Cold `stats are STRICTLY full race only, and often even then they are not what you want. Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 5, 2013 Share Posted February 5, 2013 They are for very specific situations, the engine was mapped at a certain temperature, and the oil system was designed to achieve a running oil temp in harmony with a given water temp (the two are intrinsically linked due to the Modine cooler under the oil filter). You will not drive condensation out of the oil, the engine will run on the wrong part of the map for design performance, economy and emissions, and you may well see excess engine wear. Cold `stats are STRICTLY full race only, and often even then they are not what you want. Beat me to it Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 5, 2013 Share Posted February 5, 2013 This is not to say it's a bad product, just that it's totally inappropriate for your needs, and possibly detrimental to the engine. Quote Link to comment Share on other sites More sharing options...
supra_ufo Posted February 5, 2013 Author Share Posted February 5, 2013 They are for very specific situations, the engine was mapped at a certain temperature, and the oil system was designed to achieve a running oil temp in harmony with a given water temp (the two are intrinsically linked due to the Modine cooler under the oil filter). You will not drive condensation out of the oil, the engine will run on the wrong part of the map for design performance, economy and emissions, and you may well see excess engine wear. Cold `stats are STRICTLY full race only, and often even then they are not what you want. Flush the coolant round 3... Thanks & no thanks Chris Quote Link to comment Share on other sites More sharing options...
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