Mud-club

Vehicle & Technical => Range Rover => Topic started by: Brett69 on December 29, 2009, 16:47:53

Title: 1978 rangie V8 won't start since Dizzy change
Post by: Brett69 on December 29, 2009, 16:47:53: Ok I know this is something silly so any help would be great. I have change the distributor on my 3.5 V8 1978 Range rover. I did NOT change the dizzy cap. I have fitted new dizzy the same angle as old unit an when I got it to fire I got one almighty backfire and just does small backfires since. What am I doing wrong? :oops: Worked on cars for years an this V8 is driving me mad :evil:

Thanks Brett
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: ben-dent on December 29, 2009, 17:05:56: how did you set the timing,

i would set it up by the book, and then start it and turn the dizzy and time it by ear, doing it like this is the best way to set them up, i have always had problems with them doing by the book
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: bogie on December 29, 2009, 19:19:50: Did you put it in 180 degrees out,if so swap your leads round or easier turn it around!
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: bogie on December 29, 2009, 19:24:16: Or thinking about it is the dizzy just duff??????????? If its points are the little wires inside insulated or the clear plastic insulators either side of the points,if its elecy is the moderal ok?
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: lurch_917 on December 29, 2009, 19:59:26: you say you replaced the dissey but nopt the cap now nowing haw pickie rover v8 are on ignition parts have you got the right cap for the dizzey
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: 300TDi Disco on December 29, 2009, 22:04:12: I have had the same problem, Took the dissy out without marking it up and put it together 180 out. Was back popping through the inlet and blowing the pipe off the plenum chamber. I also has to change the amp pack on the side of the dissy. Once you clocked it you wouldn't do it again.
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: Brett69 on December 30, 2009, 14:29:47: Ok I know what I' ve done, I have fitted the dizzy case to same place as the old dizzy but not set rotor arm the same, so this is is the wrong place. need to pull the dizzy back out an set it all up again. Are there any markings on the pully's so you know when the engine is at top dead centre???? Thanks
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: 300TDi Disco on December 30, 2009, 20:32:08: Now that you have been cranking it over, you need to find out if your on combustion or exhaust stroke.
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: ben-dent on December 30, 2009, 22:41:20: yes there is a mark on the bottom pulley that lines up with a mark on the timing case,

but it might not be acurate, mine was out by a fair bit,
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: Range Rover Blues on December 31, 2009, 19:14:25: Quote from: ben-dent on December 30, 2009, 22:41:20
yes there is a mark on the bottom pulley that lines up with a mark on the timing case,

but it might not be acurate, mine was out by a fair bit,

:shock: Had it been rebuilt?
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: Brett69 on January 01, 2010, 22:22:05: Set the pulley to tdc and got it running then tuned by ear, starts great now :grin: Thanks :dance:
Title: Re: 1978 rangie V8 won't start since Dizzy change
Post by: bustermb on January 03, 2010, 22:57:01: i thought it was that rat in the middle box buddy lol :lol: :lol: :lol: :clap: