alland Posted February 18, 2015 Share Posted February 18, 2015 hi guys i have found a v good cond v8 discovery on a 1995 m reg but it wont start ,weve tried everything it turns over theres spark lots of fuel , theyve checked distrubutor leads plugs even tried bypassing with hotwire,the voltage is good at coil and when cranking put new fuel in it ,compression ok he is all about to give up but i thought id ask here any ideas thx Quote Link to comment Share on other sites More sharing options...
Team Idris Posted February 18, 2015 Share Posted February 18, 2015 Timing is out maybe? Quote Link to comment Share on other sites More sharing options...
Fatboy Posted February 19, 2015 Share Posted February 19, 2015 I'd try brand new plugs. It will have been well flooded by now... At least take the current ones out, give them a good check and dry them out before refitting them. Quote Link to comment Share on other sites More sharing options...
Rangy35 Posted February 19, 2015 Share Posted February 19, 2015 Yep dead spark plugs, after drying them I use a gas burner to heat them up and let them cool down, like the one chefs use to carmilise things. Remove the fuel pump fuse and crank engine over to get the fuel out of the cylinders before you put the spark plugs back. Or just put new ones in if its easyer, but will still recomend drying the cylinders. Quote Link to comment Share on other sites More sharing options...
alland Posted February 19, 2015 Author Share Posted February 19, 2015 hi guys weve tried taking plugs out testing them theyre sparking put blow torch on them timing ok its all there even tried easy start not even attempting to fire ? im lost lol Quote Link to comment Share on other sites More sharing options...
Josh NZ Posted February 19, 2015 Share Posted February 19, 2015 Are the valves/rocker arms/ tappets properly adjusted? If they're far enough out the truck won't start. My old series 2a did the same thing after I rebuilt and changed the cylinder head. Quote Link to comment Share on other sites More sharing options...
stuck Posted February 19, 2015 Share Posted February 19, 2015 HT leads on in the correct order? Quote Link to comment Share on other sites More sharing options...
PaulN Posted February 19, 2015 Share Posted February 19, 2015 as per 'Team Idris' - is the spark at the right time? - wouldn't be the first time a distributor got nudged! Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted February 20, 2015 Share Posted February 20, 2015 Are the valves/rocker arms/ tappets properly adjusted? If they're far enough out the truck won't start. My old series 2a did the same thing after I rebuilt and changed the cylinder head. No adjustment on a Rover V8, hydraulic tappets. I still vote for fresh plugs as the simplest thing to try. Quote Link to comment Share on other sites More sharing options...
alland Posted February 20, 2015 Author Share Posted February 20, 2015 thx guys its in the garage near him and theyre lost at the moment he bought it as a non runner the guy said it just stopped running and its never re started i think hes on about floggin it now its a shame as for a disco its vv clean Quote Link to comment Share on other sites More sharing options...
Henry Webster Posted February 20, 2015 Share Posted February 20, 2015 Plugs don't always recover once they have been flooded, especially on a Rover V8. The blow torch/oven tricks don't always work either. Fresh set of plugs needed! Followed by leads, followed by dizzy cap, followed by rotor arm... Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted February 20, 2015 Share Posted February 20, 2015 What Henry said. My 3.5 EFI RR was totally flat dead, not a cough, and a new set of plugs had it roar into life. Likewise the 127 was totally floored by one rotor arm which seemed identical to the old one, would not so much as try to start. Quote Link to comment Share on other sites More sharing options...
Rangy35 Posted February 20, 2015 Share Posted February 20, 2015 hi guys weve tried taking plugs out testing them theyre sparking put blow torch on them timing ok its all there even tried easy start not even attempting to fire ? im lost lol Never be fooled about the spark plugs(hope you checked all eight) sparking outside of the engine, the spark has to be a very fat blue spark, not just some tiney little transparant blue spark. Once the plug is back in the engine the spart must overcome the resistance of the compressed air as well. +1 on the suggestion to renew the complete HT system, this is of course if you are 100% sure the timing and compression is spot on. So without spraying sh@t down the intake, are the spark plug's wet with fuel when you remove them after a few attempts to start it? Quote Link to comment Share on other sites More sharing options...
Josh NZ Posted February 21, 2015 Share Posted February 21, 2015 No adjustment on a Rover V8, hydraulic tappets. I still vote for fresh plugs as the simplest thing to try. I should really have remembered that.. As having owned a V8 previously.. D'oh! Quote Link to comment Share on other sites More sharing options...
Diksdown Posted February 24, 2015 Share Posted February 24, 2015 My 95 v8 has moments like yours. Not recommended but three times in the last year I've turned her and she's not kicked off. By passed Spider long time back but still seems to be immobiliser stoppage. On all occasions, after normal checks I have ended up pumping the fuel pedal like a demented one legged cyclist speeding down a hill. And she slowly but surely fires up. I'm thinking relay problems but that's for another day. Good luck. This is my second oldish Disco 1 and they've both been great motors. Worth a wee bit of work. Regards. Diksdown Quote Link to comment Share on other sites More sharing options...
hangover Posted February 26, 2015 Share Posted February 26, 2015 Fuel pumped could be knackered, are you getting pressure at the rail ? Quote Link to comment Share on other sites More sharing options...
Team Idris Posted February 27, 2015 Share Posted February 27, 2015 Mine got to be a bad starter and it was partly because the cam lobes were flat. So it can be a valve issue with rovers happy-shopper cams If it doesn't even try with a snort it has to be ignition. And the carbon from the petrol can impregnate the porcelain as can the engine oil. Has it still got ignition bypass for a 9volt coil on those? they just aren't an engine that likes starting Quote Link to comment Share on other sites More sharing options...
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