KennyJ Posted June 2, 2012 Share Posted June 2, 2012 I need some help please. I was thinking about selling my R34 GTR V-spec, found a guy who said he would buy it, took it for a week test tour, and blew the engine on it. He then left town, and I can't find him. Anyway, I had to take out the engine, swap cranckshaft, replace piston rods and pistons, install new turbos, and all gaskets. Etc. After starting the car up, it idles on 2500rpm, the blow off valve seems to not be functioning, the sound which used to be there when I let go of the throttle is not there anymore. I have no clue on where to start in the search to get the idle down or getting the resirculating valves to function again. I took the car to a Nissan dealership, and they tried to adjust the idle using consult device, but it didn't work. Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/ Share on other sites More sharing options...
DVS JEZ Posted June 2, 2012 Share Posted June 2, 2012 I bet u cleaned the throttle bodies. U now need new throttle bodies to bring the idle back down Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381768 Share on other sites More sharing options...
The Mafia Posted June 2, 2012 Share Posted June 2, 2012 Why in the hell do you loan your car to someone for a week? Holy Fark.... Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381789 Share on other sites More sharing options...
DVS JEZ Posted June 2, 2012 Share Posted June 2, 2012 Why in the hell do you loan your car to someone for a week? Holy Fark.... Hey Mafia can i borrow ur car??? Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381801 Share on other sites More sharing options...
KennyJ Posted June 2, 2012 Author Share Posted June 2, 2012 Well, I don't have a good answer to why I loaned him the car for a week... He was a friend of a friend who I trusted. Throttle bodies? Honestly I am no mechanic myself, but I'm pretty sure the guy who did the rebuild have checked things as such, his guess was an electric fault or error... Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381818 Share on other sites More sharing options...
DVS JEZ Posted June 2, 2012 Share Posted June 2, 2012 Well, I don't have a good answer to why I loaned him the car for a week... He was a friend of a friend who I trusted. Throttle bodies? Honestly I am no mechanic myself, but I'm pretty sure the guy who did the rebuild have checked things as such, his guess was an electric fault or error... I know its the throttle bodies because i did it when i was a 2nd year apprentice. Cleaned the throttle bodies during my rb26 build. Started up at 2500rpm. Did everything to diagnose then worked out its the throttle bodies. When u clean them it removes the sealer and now they act as if u have the throttle slightly open Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381830 Share on other sites More sharing options...
ARTZ Posted June 2, 2012 Share Posted June 2, 2012 is that only GTRs or do rb25s do it too ?? Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381858 Share on other sites More sharing options...
GTSBoy Posted June 2, 2012 Share Posted June 2, 2012 No, it's only RB26 throttles. They're rotten things. This catches so many people out, it is not funny. Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381911 Share on other sites More sharing options...
Ziller Posted June 2, 2012 Share Posted June 2, 2012 I bet u cleaned the throttle bodies. U now need new throttle bodies to bring the idle back down Strange but true, this can happen and does. Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381917 Share on other sites More sharing options...
Moodles2 Posted June 2, 2012 Share Posted June 2, 2012 2 options, Tomei make a special sealent for the ITB's or XS Engineering (may be discontiuned but i still see them on ebay) make rubber? throttle body shaft seals Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381930 Share on other sites More sharing options...
KennyJ Posted June 2, 2012 Author Share Posted June 2, 2012 I know its the throttle bodies because i did it when i was a 2nd year apprentice. Cleaned the throttle bodies during my rb26 build. Started up at 2500rpm. Did everything to diagnose then worked out its the throttle bodies. When u clean them it removes the sealer and now they act as if u have the throttle slightly open Thanks, will try swapping them. Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6381971 Share on other sites More sharing options...
portaz Posted June 2, 2012 Share Posted June 2, 2012 Search throttle body re-seal, I have done two now with rtv sealant and have done over 25000ks with no issues, it's easy and cheap, once u get the tb's off that is lol Link to comment https://www.sau.com.au/forums/topic/401615-total-engine-rebuild-need-some-help-now/#findComment-6382029 Share on other sites More sharing options...
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