supratoy Posted May 28, 2008 Share Posted May 28, 2008 Decided I wanted to see how my supra would be like on knockhill. It was pretty dam good even compared to my gtr. Only thing the brakes lasted about 3 laps:( before the pedal was hitting the floor. Near the end off the day oil leak[sHOCK][/sHOCK] checked the next day and I'am pretty sure the front crank seal has popped. Anyways, I have done some searching on this topic but still not sure which way I should I go. Get it done at CW and that should be problem solved and more track days but lots of ££££ that I dont have Or get a new pump and seal, take it to envy or a supra specialist near scotland and hope thats it solved for a year but no track till I have save some money up. any advice ? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 28, 2008 Share Posted May 28, 2008 Either option should solve the problem, but I'm sure |Chris would advocate a rebuild, but once the oil is drained and the sump is off should give an idea, maybe an oil analysis, would show up any problems. Quote Link to comment Share on other sites More sharing options...
bolarbag Posted May 28, 2008 Share Posted May 28, 2008 I was so close to just buying UK brakes aswell, lucky I didnt, your the guinea pig again lol;) What is the minimum requirement to change/replace a fmos? I question why it blew in the first place, the only thing I can think of is Cams as other than that, the car is bpu, I wasnt aware of fmos going on bpu supra's, I thought it was either due to dodgy rebuilds or incorrectly routed breather systems. Could wear on the piston rings have allowed excess crankcase gases to overload the stock crankcase breathers ultimately creating too much pressure and the result being fmos failure? I got lost in the threads previously about fmos failure, there were so many conflicting stories, was there ever an outcome other than PHR's modified oil pump? Quote Link to comment Share on other sites More sharing options...
AndyT Posted May 28, 2008 Share Posted May 28, 2008 I was so close to just buying UK brakes aswell, lucky I didnt, your the guinea pig again lol;) What is the minimum requirement to change/replace a fmos? I question why it blew in the first place, the only thing I can think of is Cams as other than that, the car is bpu, I wasnt aware of fmos going on bpu supra's, I thought it was either due to dodgy rebuilds or incorrectly routed breather systems. Could wear on the piston rings have allowed excess crankcase gases to overload the stock crankcase breathers ultimately creating too much pressure and the result being fmos failure? I got lost in the threads previously about fmos failure, there were so many conflicting stories, was there ever an outcome other than PHR's modified oil pump? Same here. Massive thread on the shortcomings of the design of the standard oil pump putting, sorry creating, too much pressure on the seal. PHR announced that they had solved the age old problem a while back and told us about the redesigned pump. I'm not sceptical, many credible people tried to solve this and PHR are top Supra people too. I sincerely hope their pump has solved it. Of course it could just be a badly fitted seal. Quote Link to comment Share on other sites More sharing options...
bolarbag Posted May 28, 2008 Share Posted May 28, 2008 (edited) Of course it could just be a badly fitted seal. From factory? AFAIK this cars fmos or oil pump has never been changed, its just strange how these failures have started to appear quite common now under high boost(or bpu) conditions I'm intrigued as I was under the false pretence that the stock block is capable of 500bhp+ My bottom end will be getting rebuilt pretty soon but I want to be able to drive the car to my enigne builders without anything going pop, it will also rule out any problems I have with any ancillaries e.t.c Edited May 28, 2008 by bolarbag (see edit history) Quote Link to comment Share on other sites More sharing options...
AndyT Posted May 28, 2008 Share Posted May 28, 2008 (edited) From factory? AFAIK this cars fmos or oil pump has never been changed, its just strange how these failures have started to appear quite common now under high boost(or bpu) conditions I'm intrigued as I was under the false pretence that the stock block is capable of 500bhp+ My bottom end will be getting rebuilt pretty soon but I want to be able to drive the car to my enigne builders without anything going pop, it will also can rule out any problems I have with any ancillaries e.t.c Rules my last option out then. As far as I remember from threads early last year, peoples seals were getting fixed only to pop again soon after, not just once either. This was when I started reading up on the modified oil pump route. Other cars that had been uprated never suffered though. Strange one and not easily solved. I hope some people with the rebuilt engines and uprated power come along soon and share their experience. I'm this far with the reading so far. http://www.mkivsupra.net/vbb/showthread.php?t=114270&highlight=crank+seal Interesting stuff. Edited May 28, 2008 by AndyT (see edit history) Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 28, 2008 Share Posted May 28, 2008 Have a look here,http://www.mkivsupra.net/vbb/showthread.php?t=108524&highlight=Front+main+seal&page=21 I am now convinced that pump wear is the answer, whatever has caused it. Quote Link to comment Share on other sites More sharing options...
bolarbag Posted May 28, 2008 Share Posted May 28, 2008 I am now convinced that pump wear is the answer, whatever has caused it. Assuming you do everything by the book, servicing e.t.c and your car gets contaminated what is the best way to flush the oil system while during an oil change before the fmos goes? I have noticed that if I had not undone and got rid of my oil by undoing the sump plug and the coolant pipes leading to my oil cooler then I would have had the same oil in there for 2changes or more, I know Supratoy has an oil cooler, what about these other cars? Are lazy methods of servicing to blame for the contamination? or is it due to worn piston rings that bad fuel e.t.c has surpassed? I just wonder how pump wear comes about on an otherwise well built engine:search: Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 28, 2008 Share Posted May 28, 2008 Although i am still not convinced, it is thought that its largely down to contaminated oil by petrol, especially BPU cars, due to the over rich mix at higher boost that the std ECU kicks out, however, my FMS first went just after i when BPU, and i mean just after, my cat was a fresh import, and had just an exhaust and filter and had less the 50k on it, I replaced the seal once more a year later, and it quickly went again, so i bought a new PHR pump and it has been fine ever since, when the sump was off i checked the state of the residue in the sump, and found no trace of any contamination from grit metal etc, also worth noting the pump that was originally fitted had the drain hole opened up, as per PHR, obviously in an effort to fix, shame they never checked the inside of the pump, my conclusion is that the std Toyota pump is less than adequate for the job, and is prone to premature wear. Quote Link to comment Share on other sites More sharing options...
Scooter Posted May 28, 2008 Share Posted May 28, 2008 Tricky can i ask how you opened up the screws on the oil pump in the thread you linked earlier? Quote Link to comment Share on other sites More sharing options...
supratoy Posted May 28, 2008 Author Share Posted May 28, 2008 Either option should solve the problem, but I'm sure |Chris would advocate a rebuild, but once the oil is drained and the sump is off should give an idea, maybe an oil analysis, would show up any problems. Have you been driving the car hard since the oil pump and seal was done? I'll give CW a email but if you think oil pump, seal and making sure the oil looks clean will do the job, I'd definetly prefer to go that route since thats cheaper but still over a grand to do:( Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 28, 2008 Share Posted May 28, 2008 Of course! but i have probably not done more than 2K mls, if you want to be sure that there are no problems with bearings etc, the the oil analysis will tell a lot. Quote Link to comment Share on other sites More sharing options...
supratoy Posted May 31, 2008 Author Share Posted May 31, 2008 Cheers tricky, I'am taking the car to envy at the end of june and told them Iam wanting the oil analysis and phr oil pump and seal sorted plus timing belt while they are at it. Hopefully that will sort it all out. Quote Link to comment Share on other sites More sharing options...
supratoy Posted June 2, 2008 Author Share Posted June 2, 2008 Just wondering with the above parts should I also get a new oem crank pulley too(tricky:D)? cheers Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted June 2, 2008 Share Posted June 2, 2008 Just wondering with the above parts should I also get a new oem crank pulley too(tricky:D)? cheers Only if it looks worn or the key-way is elongated. Quote Link to comment Share on other sites More sharing options...
supratoy Posted June 2, 2008 Author Share Posted June 2, 2008 Only if it looks worn or the key-way is elongated. Cool, thanks again tricky:D Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted June 2, 2008 Share Posted June 2, 2008 Tricky can i ask how you opened up the screws on the oil pump in the thread you linked earlier? Sorry missed this earlier, i used a good fitting Phillips bit and a small ratchet, they are pretty tight, so a correct fit is paramount. Quote Link to comment Share on other sites More sharing options...
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