Johnm400 Posted July 13, 2019 Share Posted July 13, 2019 Ive got some oil at the rear of the engine that seems to be coming from the back of the cam cover. Ive tried to nip up the bolts but they seem fine. Is this a common place for oil leaks? Any online traders selling new gaskets? Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted July 13, 2019 Share Posted July 13, 2019 Easiest way to tell is to take the cam covers off and check the rubber gaskets. If they feel brittle and like plastic then usually the cause for oil to leak through. SRD/Whifbitz etc will stock these. Quote Link to comment Share on other sites More sharing options...
Andy Ven Posted July 13, 2019 Share Posted July 13, 2019 I have a brand new set of cam cover gaskets which are for sale if your interested? Quote Link to comment Share on other sites More sharing options...
Johnm400 Posted July 13, 2019 Author Share Posted July 13, 2019 I have a brand new set of cam cover gaskets which are for sale if your interested? /QUOTE] Are they for non vvti N/A Andy? Quote Link to comment Share on other sites More sharing options...
Johnm400 Posted July 13, 2019 Author Share Posted July 13, 2019 Easiest way to tell is to take the cam covers off and check the rubber gaskets. If they feel brittle and like plastic then usually the cause for oil to leak through. SRD/Whifbitz etc will stock these. Yeah its not a 5 minute job on N/A though with all the throttle body and inlet in the way. Might as well just put a new gasket on anyway if im going to take it off. I dont think theres anywhere else the leak could be coming from although when i first saw the drips on the floor of the garage my heart skipped a beat thinking rear crank seal but after checking its all wet above the gearbox. Might be an idea to get a small mirror so i can see behind. Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted July 13, 2019 Share Posted July 13, 2019 Yeah its not a 5 minute job on N/A though with all the throttle body and inlet in the way. Might as well just put a new gasket on anyway if im going to take it off. I dont think theres anywhere else the leak could be coming from although when i first saw the drips on the floor of the garage my heart skipped a beat thinking rear crank seal but after checking its all wet above the gearbox. Might be an idea to get a small mirror so i can see behind. Yeah thats a good 30 minute job there taking off the inlet. Most NA's I see suffer from this issue, its rather common. So probably that. Quote Link to comment Share on other sites More sharing options...
evinX Posted July 13, 2019 Share Posted July 13, 2019 Common on the NA. Crappy design by toyota to and the bolts eaily come loose. So retorque them after a drive. Dont forget some silicone at the front corners of the cams to Quote Link to comment Share on other sites More sharing options...
Andy Ven Posted July 13, 2019 Share Posted July 13, 2019 Are they for non vvti N/A Andy? Sorry they are for a twin turbo pre vvti Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted July 13, 2019 Share Posted July 13, 2019 Sorry they are for a twin turbo pre vvti /QUOTE] They will fit an NA Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted July 13, 2019 Share Posted July 13, 2019 The problem often isn't he gaskets, its the washers. Toyota used a plastic filled metal cap as a washer, the plastic breaks down and you lose your clamping force. Solution, new washers. Quote Link to comment Share on other sites More sharing options...
Andy Ven Posted July 13, 2019 Share Posted July 13, 2019 They will fit an NA Ahh wasnt sure if they were different. I have a set of rubber washers for ontop too. Quote Link to comment Share on other sites More sharing options...
Johnm400 Posted July 13, 2019 Author Share Posted July 13, 2019 Common on the NA. Crappy design by toyota to and the bolts eaily come loose. So retorque them after a drive. Dont forget some silicone at the front corners of the cams to Yeah same as the MK2 MR2. The bolts used to work loose on those. Usually tightening them would fix the leak but on the Supra, the bolts seemed tight enough. I did manage to get a small nip on them but obviously they are not supposed to be too tight. - - - Updated - - - Ahh wasnt sure if they were different. I have a set of rubber washers for ontop too. /QUOTE] Let me check with a mirror to see if its the washers or gasket or both and ill get back to you Andy. Quote Link to comment Share on other sites More sharing options...
Johnm400 Posted July 13, 2019 Author Share Posted July 13, 2019 The problem often isn't he gaskets, its the washers. Toyota used a plastic filled metal cap as a washer, the plastic breaks down and you lose your clamping force. Solution, new washers. If its the washers, that would be much easier as i wouldnt have to take all the inlet off. Cheers, ill have another look tomorrow. Quote Link to comment Share on other sites More sharing options...
Ric Posted July 14, 2019 Share Posted July 14, 2019 Also only ever torque the cam cover bolts to what toyota says, don't be tempted. The cam covers will crack so easily. i think it's 5-7nm Quote Link to comment Share on other sites More sharing options...
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