PhilMorrison Posted July 10, 2008 Share Posted July 10, 2008 After my engine probs, I thought I was there, but apparently not. I'm using a GS300 NA crank. I didn't measure the section where the front seal fits, but the rest of it was absolutely untouched flawless. It's all new ACL bearings etc. It's using a brand new PHR uprated oilpump, and brand new Toyota front crank seal. The car is only running 1.1bar, and I have a 20mm ID breather per rocker cover. After only 3 sessions where it's been running perfectly yesterday it started leaking badly from the front crank seal. I've just pulled the pully and sprocket, and can see the seal. It doesn't appeared to have popped out or anything, so where the hell have I gone wrong? P.S does anyone have the part number for the front crank seal to hand? I need one by tomorrow Quote Link to comment Share on other sites More sharing options...
bolarbag Posted July 10, 2008 Share Posted July 10, 2008 Bad news mate Why does those keep blooming happening to everyones cars? I never seen any of these problems up until the last couple of year - it has to be wear and tear but on engines with a fresh rebuild? Quote Link to comment Share on other sites More sharing options...
Lee P Posted July 10, 2008 Share Posted July 10, 2008 Could be a duff pump leaking pressure to the the seal, also check how far the seal is in. If its in past the pump housing it can block the little hole that lets eccess oil flow back to the sump. I had both these problems, one is easy to fix the other is a PITA. Hope you get it sorted Quote Link to comment Share on other sites More sharing options...
PhilMorrison Posted July 10, 2008 Author Share Posted July 10, 2008 Thanks Lee, I'll check to see if it's pushed in to far. I really hope it's the latter.. If I have pushed it in to far, what would be a good method of pulling the seal out without raping it? I am picking another one up tomorrow morning, but I don't want to kill the seal uncessarily. Quote Link to comment Share on other sites More sharing options...
Lee P Posted July 10, 2008 Share Posted July 10, 2008 (edited) I dont think you will get it out without damaging it. If its in tight you will have to make a hole in it to get it out. Have you run the car with pulley off so you can see the leak? Edited July 10, 2008 by Lee P (see edit history) Quote Link to comment Share on other sites More sharing options...
PhilMorrison Posted July 10, 2008 Author Share Posted July 10, 2008 You mean turned it over? I know it's non interferance, but didn't want to take the risk. I pressume it's totally fine to do?. If it helps at all with diagnosis, it doesn't leak immediately. It takes about 30-40 seconds to build up pressure and leak. Also, I've never done a crank seal before, and recall pushing the seal in until it stopped, so I'm hoping I have just pushed it in to far.. Why doesn't it have a lip or something to stop you being able to do that btw? Quote Link to comment Share on other sites More sharing options...
Lee P Posted July 10, 2008 Share Posted July 10, 2008 Sorry, leave the sprocket and timing belt on but the front pulley off. You can then see where the leak is coming from, some of these pumps have had cracks in the housing and can leak from above the seal. Quote Link to comment Share on other sites More sharing options...
PhilMorrison Posted July 10, 2008 Author Share Posted July 10, 2008 It won't run unfortunately as it uses a 36tooth trigger and hall sensor for the crank trigger. I'm pretty confident it's the seal, everything is still spotlesly clean above the seal, the lower half of the actual seal is oiled, as is everything on the engine below it. Quote Link to comment Share on other sites More sharing options...
Lee P Posted July 10, 2008 Share Posted July 10, 2008 Let us know how you get on. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted July 10, 2008 Share Posted July 10, 2008 If you have pushed it in too far Phil, it can obscure the drain hole slightly, are you running higher rev limit? and what oil grade? apart from low visc/ high temps, combined with high RPM, the only other likelihood is the pump is damaged, sorry. Quote Link to comment Share on other sites More sharing options...
PhilMorrison Posted July 10, 2008 Author Share Posted July 10, 2008 Hmmm, I can't even see a drain hole, but I'm doing this on the floor from the bottom, as the ramps tied up.. I've just raped the oil seal out, and other than the damage I did getting it out, it looks as new. It didn't look massively far in, but I don't know what it should look like. Like I said, on install I know it was pushed in until it stopped. Is there a correct procedure for installing a crank seal? They come greased IIRC. This is what I'm looking at with the crank seal removed. Not alot you can tell from a photo, but I was under there, so thought I'd snap it for the sake of it. http://media.driftworks.com/Phil/Oilpumpseal.jpg Quote Link to comment Share on other sites More sharing options...
PhilMorrison Posted July 10, 2008 Author Share Posted July 10, 2008 (edited) If you have pushed it in too far Phil, it can obscure the drain hole slightly, are you running higher rev limit? and what oil grade? apart from low visc/ high temps, combined with high RPM, the only other likelihood is the pump is damaged, sorry. I'm running to 7200rpm which I thought was extremely conservative. I'm really hoping it isn't a damaged pump It's Silkolene Pro S 10w50. Edited July 10, 2008 by PhilMorrison (see edit history) Quote Link to comment Share on other sites More sharing options...
PhilMorrison Posted July 10, 2008 Author Share Posted July 10, 2008 Okay, perhaps a good sign. I've got a spare block in the workshop, I've just pulled the sprocket on that to see what the crank seal position should look like. It's completely flush with the outer edge of the pump, and I know the crank seal in the engine in the car was pushed in a good 2-3mm further in than that. So, I'm picking up a new crank seal from Toyota tomorrow at 8:30, and I'll throw it all back together and hopefully make the startline on Saturday morning for round four of the Europeandriftchampionship . Wish me luck. Thanks for your help guys Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted July 10, 2008 Share Posted July 10, 2008 Sounds like it could have been partially obscuring the drain,if it was that far in, as you have now seen there is very little area behind the seal, and the drain starts as i kind of slit, hopefully installing the new seal flush should cure it, good luck:) Quote Link to comment Share on other sites More sharing options...
ajazyasin Posted July 10, 2008 Share Posted July 10, 2008 good luck! Quote Link to comment Share on other sites More sharing options...
AndyT Posted July 10, 2008 Share Posted July 10, 2008 Okay, perhaps a good sign. I've got a spare block in the workshop, I've just pulled the sprocket on that to see what the crank seal position should look like. It's completely flush with the outer edge of the pump, and I know the crank seal in the engine in the car was pushed in a good 2-3mm further in than that. So, I'm picking up a new crank seal from Toyota tomorrow at 8:30, and I'll throw it all back together and hopefully make the startline on Saturday morning for round four of the Europeandriftchampionship . Wish me luck. Thanks for your help guys Make this man a mod. Quote Link to comment Share on other sites More sharing options...
PhilMorrison Posted July 11, 2008 Author Share Posted July 11, 2008 Okay it's back together and not pissing oil anymore. I won't know if it's actually solved the problem until it gets an ass raping tomorrow, but it's a start Quote Link to comment Share on other sites More sharing options...
SimonB Posted July 11, 2008 Share Posted July 11, 2008 Yes, it's supposed to be flush. Best way of putting one in I found was to use a bit of plastic drain pipe from B&Q - one of the standard sizes is just right and you can push it in gently and keep it level. I put some MP grease on the inner edge (the crank edge) and some gasket sealer on the outer edge. Quote Link to comment Share on other sites More sharing options...
Lee P Posted July 11, 2008 Share Posted July 11, 2008 Well done Phil, hopefuly your sorted now. Quote Link to comment Share on other sites More sharing options...
PhilMorrison Posted July 17, 2008 Author Share Posted July 17, 2008 KZM8HZgYoAc Thanks for the help people Quote Link to comment Share on other sites More sharing options...
supra matt Posted July 17, 2008 Share Posted July 17, 2008 It held out then Or was all that smoke just the oil pissing out all over the exhaust ?? LOL Quote Link to comment Share on other sites More sharing options...
bignum Posted July 17, 2008 Share Posted July 17, 2008 Cool, Quote Link to comment Share on other sites More sharing options...
PhilMorrison Posted July 19, 2008 Author Share Posted July 19, 2008 It held out then Or was all that smoke just the oil pissing out all over the exhaust ?? LOL Yeah it held out.. I wouldn't have been able to diagnose and fix the problem without this forums help. Well worth the membership fee. Thanks again people Quote Link to comment Share on other sites More sharing options...
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