Kev.O Posted November 22, 2006 Author Share Posted November 22, 2006 OK this may be a long shot but is your cam belt snapped? Edit - actually you'd probably have seen that by now from taking off the plug cover but hey. -Ian I can see it going round as I turn the engine over Thanks anyway. Any other ideas? Quote Link to comment Share on other sites More sharing options...
R Black Posted November 22, 2006 Share Posted November 22, 2006 Hi had this in a previous car and it was something called a Hall sensor,do supra's have these or equivalent?, a dicky MAF can cause all sorts of problems too, and finally, can't see how this would do it as you have lots of fuel & spark, could it be your immobiliser? Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted November 22, 2006 Share Posted November 22, 2006 Hi had this in a previous car and it was something called a Hall sensor,do supra's have these or equivalent?, a dicky MAF can cause all sorts of problems too, and finally, can't see how this would do it as you have lots of fuel & spark, could it be your immobiliser? Kev's car has a MAF as its a UK car but we have the same problem with a J-spec car which doesn't... Gaz. Quote Link to comment Share on other sites More sharing options...
absz Posted November 22, 2006 Share Posted November 22, 2006 Hi had this in a previous car and it was something called a Hall sensor,do supra's have these or equivalent?, a dicky MAF can cause all sorts of problems too, and finally, can't see how this would do it as you have lots of fuel & spark, could it be your immobiliser? i think they normally use a hall sensor on engines fitted with distributors. (ie mk2 golf) Quote Link to comment Share on other sites More sharing options...
Kev.O Posted November 23, 2006 Author Share Posted November 23, 2006 After chatting to my uncle, we thought that the timing pulley could have come apart, however after removing everything the pulley seems to be together. Apparently it was in two pieces last time so my uncle put it in a vice and it's still together now. Also the marks line up everywhere! I measured the ohms going to the sensor and from the plug from the ECU I'm getting 1045 ohms. Is this right? The car is still in bits at the moment. Thinking about replacing the undertray as it's messy and a little split. Does anyone know how much they are from Mr T? Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted November 23, 2006 Share Posted November 23, 2006 The car is still in bits at the moment. Thinking about replacing the undertray as it's messy and a little split. Does anyone know how much they are from Mr T? Quite pricey I think Kev - over £200. We do an aftermarket aluminium one for the £160 - anodised black, lightweight, strong, ducting for cooling. We've done more work on this problem car today and think its an earth somewhere. Just finding it is the problem Regards, Gaz. Quote Link to comment Share on other sites More sharing options...
Kev.O Posted November 23, 2006 Author Share Posted November 23, 2006 Your joking, a bad earth, nightmare! Please keep me posted. Have you got a pic of the undertray, just looking on your website Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted November 23, 2006 Share Posted November 23, 2006 Right here Kev: http://www.mkivsupra.net/vbb/showthread.php?t=50538 Quote Link to comment Share on other sites More sharing options...
Kev.O Posted November 30, 2006 Author Share Posted November 30, 2006 Any progress Gaz? That's a good price btw Toyota want £185+vat for a stock one Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted November 30, 2006 Share Posted November 30, 2006 Any progress Gaz? That's a good price btw Toyota want £185+vat for a stock one Not sure... I'll have a word with Rob tommorow. Yeah, thought so... Not cheap for a bit of plastic! Gaz. Quote Link to comment Share on other sites More sharing options...
Kev.O Posted November 30, 2006 Author Share Posted November 30, 2006 Not sure... I'll have a word with Rob tommorow. Yeah, thought so... Not cheap for a bit of plastic! Gaz. Not cheap at all. Thanks Gaz. Hopefully putting the cam belt back on tomorrow Quote Link to comment Share on other sites More sharing options...
Kev.O Posted December 2, 2006 Author Share Posted December 2, 2006 OK. Well we put the car back together tonight. Turned the key and it started (really rough) for about 3-4 seconds then died, After this the car was behaving as it was before in that it would only turn over. Does the fact that the car actually started illiminate anything? Quote Link to comment Share on other sites More sharing options...
fredm Posted December 2, 2006 Share Posted December 2, 2006 If I'm reading this correct, you definately have a good spark and the plugs get wet with fuel after cranking. Everything seems to be working as it should? Had something very similar the other day with an XJ8. Turned out the guy had cranked the engine so much after flooding the engine that "bore wash" had occurred. The bore wash produced such low compression the engine did'nt even attempt to fire. Take the plugs out and make sure they are absolutely dry, then drop about a tablespoon of engine oil into each plug hole. Put the plugs back in and turn the key. Good luck. Quote Link to comment Share on other sites More sharing options...
Kev.O Posted December 2, 2006 Author Share Posted December 2, 2006 Thank you, I'll try that. It was talked about but at the time I never had any oil to hand! Quote Link to comment Share on other sites More sharing options...
Kev.O Posted December 9, 2006 Author Share Posted December 9, 2006 I've checked the ECU bolt and connections and they seem ok. I've also checked the fault codes and there aren't any. I have also put a table spoon full of oil in each cylinder incase I was getting bore wash due to the excess fuel. The car hasn't been touched all week and she started for a few seconds the first time I turned her over. A couple of people have said that they think it could be something to do with a sensor that tells the car whether it is cold or not thus injecting more fuel into the engine. Does anyone have any ideas? Thanks Quote Link to comment Share on other sites More sharing options...
absz Posted December 9, 2006 Share Posted December 9, 2006 that will be the coolant temp sensor the one with two wires on it. but i'm sure it should still fire up on full throttle if that was the case. i think its time you had your injectors checked. for spray pattern. Quote Link to comment Share on other sites More sharing options...
jaymdee Posted December 17, 2006 Share Posted December 17, 2006 Any luck on this yet Kev? Quote Link to comment Share on other sites More sharing options...
Kev.O Posted December 17, 2006 Author Share Posted December 17, 2006 I have a few days off this week so I'm going to have a proper look Quote Link to comment Share on other sites More sharing options...
Kev.O Posted January 25, 2007 Author Share Posted January 25, 2007 Bad news. I've just had a compression test carried out and the results are not good. The first three cylinders were >160 and the back three were all on zero. The guy thinks it could be the head gasket but thinks it's unusual for three to be reading zero. Or maybe something to do with the valves? Any ideas people? Quote Link to comment Share on other sites More sharing options...
Steve Posted January 25, 2007 Share Posted January 25, 2007 I would think you have some valves stuck open to get that reading. But i am no expert.... Quote Link to comment Share on other sites More sharing options...
Vagnum Posted January 25, 2007 Share Posted January 25, 2007 Still don't start? I had the same fault when I wasn't using my supra when the clod weather started, First happened when I was moving my SBC-i color and rewiring it, had it running switched it off done the wiring on the ECU then it wouldn't start checked everything, pulling my hair out for days, checked fuelling, fault codes, Timing, injector pulsing, fuel delivery all o.k. took the spark plugs out cleaned them cleaned out the bores then it fired up miss firing all over the place then run fine, left it for a few days same thing again, done it about 4 or 5 times for about a month till I started using it every day now no problems. The low compression might be because the oil has run away from the head and hydraulic tappets are not working? Due to it sanding round for a long time. How was your running before it stopped starting? Considering it started then die sounds like flooding, once it starts the fuel could be getting straight back on to the plugs due to the amount of fuel you said that in the bores. Try taking the spark plug's out clean and heat them, pull the fuse's out for the injectors and fuel pump and crank the engine over for a while (without the plugs in) to get the excess fuel out the cylinders and build up the oil pressure, put it all back together and give it ago. If it starts’s try keeping the throttle open to keep it going but don’t rev it to hard! Quote Link to comment Share on other sites More sharing options...
Kev.O Posted January 25, 2007 Author Share Posted January 25, 2007 Still don't start? I had the same fault when I wasn't using my supra when the clod weather started, First happened when I was moving my SBC-i color and rewiring it, had it running switched it off done the wiring on the ECU then it wouldn't start checked everything, pulling my hair out for days, checked fuelling, fault codes, Timing, injector pulsing, fuel delivery all o.k. took the spark plugs out cleaned them cleaned out the bores then it fired up miss firing all over the place then run fine, left it for a few days same thing again, done it about 4 or 5 times for about a month till I started using it every day now no problems. The low compression might be because the oil has run away from the head and hydraulic tappets are not working? Due to it sanding round for a long time. How was your running before it stopped starting? Considering it started then die sounds like flooding, once it starts the fuel could be getting straight back on to the plugs due to the amount of fuel you said that in the bores. Try taking the spark plug's out clean and heat them, pull the fuse's out for the injectors and fuel pump and crank the engine over for a while (without the plugs in) to get the excess fuel out the cylinders and build up the oil pressure, put it all back together and give it ago. If it starts’s try keeping the throttle open to keep it going but don’t rev it to hard! I've tried taking the plugs out, removing the fuses and the plug to the pump and getting rid of the excess fuel. Tomorrow I'm going to put some oil in the cylinders and try a compression test again. It was running fine before it stopped running. It hasn't started now for a little over two months. Thanks for the reply G.W most appreciated Quote Link to comment Share on other sites More sharing options...
Vagnum Posted January 25, 2007 Share Posted January 25, 2007 It was running fine before it stopped running. It hasn't started now for a little over two months. Strange defo woundn't say the head gasket then, Have you checked the cam then? it may of snaped behind the pully, Take the cam covers off and make sure they turn with the engine that would give no compression too. Quote Link to comment Share on other sites More sharing options...
Kev.O Posted January 25, 2007 Author Share Posted January 25, 2007 Have you checked the cam then? it may of snaped behind the pully, Take the cam covers off and make sure they turn with the engine that would give no compression too. That was one idea the guy came up with. That's the next thing I'll be doing tomorrow if the bore wash theory doesn't work. Thanks again Quote Link to comment Share on other sites More sharing options...
hodge Posted January 26, 2007 Share Posted January 26, 2007 Hi Kev Unfortunatly its my car Gaz has got at Envy with the same problem as yours. Thinking it was the head gsket theve took the head off and 5 valves were stuck open. The car had no compression at all on 5 and 6. Ive got the head at work at the moment strupped down, as all the valves were caked with carbon. Am also changing the valve stem oil seals while im on. Hopfully i should have it finished by next weekend. I would take the head off and have a look. If theres no compression, then its the only way to go really. Let me know the outcome please will ya mate, and good luck. Quote Link to comment Share on other sites More sharing options...
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