no spark?

[dj biz r]

dg 1.9 wbx leaked , cause broken head stud,now repaired,however on trying to start the old girl no joy . on inspection it would appear that "a freind" at some stage whilst dizzy cap was of may have fiddled with rotor arm ,basicly it wasn, t seated rode high on turn over making a scratchy mess in dizzy cap and chipping a little of the arm,iv,e ordered new arm but is this the only place iv,e gone wrong? i,m 97% sure the wiring is as before,turning fine but no spark any help appreciated many thanks.

[toomanytoys]

all you can do is check that all the leads etc etc are in the right place and correctly fitted.. all conections are good and correct.. etc etc, you have fuel etc etc.. then see..


Its all about basics.. ensuring everything IS where it should be and supplying what it should..

[dj biz r]

check basics,,like i forgot to clean old gaskit off before putting new one on water pump pipe ,,,gee that was fun,,yeah iv,e gone over and over just gotta wait for rotor arm and try again my wiring is a bit messy but where split i tape with masking tape and write blue to black or how i found it but now some tape is to oily to read but it kinda goes where it goes plugs r right heads numbered likewise heads @plugoles, hopefully it is just where i, i mean a friend funked the rotor arm but i checked main, middle lead no spark so was thinking somfin else all was fine before i got my hands on it. check recheck your damm right i should.

[toomanytoys]

Have you got a haynes manual?? if you havent i'd suggest you get one...

You are asking us to predict what isnt connected..

You might want to see if you have 12v at the coil and that the leads from Dizy to amp to coil are connected properly and the earths are on.. the haynes will talk you thought he checks on each component too

[boatdog]

few ideas for you to try, with the dizzy cap off get someone to turn engine over, is rotor arm turning? if you put dizzy cap back on and remove the centre lead out of dizzy, get a well insulated pair of pliers and hold the metal end of this cable about 5 millimetres away from something metal an the engine (carb/fuel system a bad idea) and again get someone to turn engine over on the key, do you get a spark between cable and lead? be careful as this is hi voltage side of coil and has a kick like a mule! if you get a spark here its a fault on the dizzy cap, if no spark check for 12 volts at the coil, with ignition on. was dizzy removed from engine? or twisted, if it was check your ignition timing.

[Ian Hulley]

Check your earths and dizzy wires. Do you have a spare ignition module ? If not why not ?

Ian

[dj biz r]

yeah thinking back,,tried for spark from from sparkplug no joy, however there is a earth on left head that was loose now tight,,as for the haynes yeah i got one quite good but when i get stuck it dosent do my prob or it does but dosent ,,if u get what i mean ,i forget i got the book ,,im not doing meself much favours i know 2moz i,ll get new rotor try again,,its that or iv,e overlooked somthing i do have a wire spare in there iv,e looked everywhere but to be honest it was mess to start with i will post back 2moz to let you know ,,thanks all .ps ian ,,ignition module? amp coil dizzy ?which bit? lol book is in van im in pjs .

[Ian Hulley]

The ignition module or amplifier is a 2" square black block with an alloy heat sink on the back. These are a known weakness and stutter and then stop working completely.

1st stop is earth though.

Ian.

[dj biz r]

fitted new rotor arm checked earths.i now have spark,,but the bleeder wont start suspect timing alltough should be near enough so whilst checking this there appears to be no compression! popped rockers off and found #1 on compression stroke watching the valves so its close,,but still wont start had a couple of backfires but thats it i,m stumped . have just done gaskits after broken head stud im thinking i should get some compression by turning engine over

[toomanytoys]

Back the valve adjusters off to only 1/4 turn in from just touching.. the 2 turns is pants....
Pushrods seated properly in the tappet??


Ignition leads in right place?? check the manual..

timing can be set close, easily (without timing light), there is a procedure in the manual

[dj biz r]

oh funk bleeding touch then 2 turns yeah got on that bus some didnt look right @all ended up going back to how it wasish you can see by turning that in/out isnt behaving right .got it poping carb cover off the odd flame shooting out nice to look @ but that says valve timing out as spark should be closed so its gotta be timing i guess dizzy position will sort that spent all day trying to be clever ,reading the paynes i kinda got it but i was expecting it to be in the right place at a certain point "doh" i have a slightly diffrent perception now thanx to forums like this.to be more help the van was jacked up whilst the engine was dropped down on a crate"i had to do this way i live on an estate no garage nowhere to work on out engine" i still got told off for this, not allowed to work on motor vechile there sir yeah riteo u pay the bill ,stop rambling man ,,.anyway engine was at a slant for like 6 weeks right side regasketed but left broke head stud "original problem" was left open ,anyway does this effect tappets thus mabe needing retiming as worked well before i expected fix turn key and,,,,,,well ha ha yeah them rods,,really thought about them how do you know there in before iv,e wound pully u get a klik here and there sitting in? but consideration was given that if they where not seated they could stop valves working last time i had engine out engine in it was over like too days and all was good this time however im puzzled .

[dj biz r]

gungho muppet that i am after finding no compression loking at valves i decided to play with them i made quite a difrence visuly .doh now i understand the oil may have drained so mabe i should not have tampered with them but i thought because no compression the valves where wrong think i koked up because i couldnt get engine firering i,d try that i,m a dumbass iv,e done all the static timing stuff and realise it should,ve fired by now i flunked the rotor arm before ,now i,m thinking get new dizzy cap ht leads plugs just to make sure ,good spark @ king lead rotor arm facing correct cylinder @ tdc so even if timing out it should fire am i right? in the mean time my valves should i try to fix now cold or should i wait untill engine has been "hopefully run" as i understand now what valves do i dont wanna break or bend anything .sorry i,m such a "idiot" i cant help it

[clartsonly]

Check your earths and dizzy wires. Do you have a spare ignition module ? If not why not ?

Ian

I think mine wasn't starting after replacing engine because the earth from the ignition pack was on a painted surface on the engine.

[dj biz r]

i,m getting to the bottom of this now after getting new dizzy cap rotor plugs checking all earths,well basicly with so much messing popping of cap to static time etc it seems half the time i did,nt have dizzy seated right ,took me forever to realise i just happend to be winding engine up to tdc noticed rotor was,nt going around lol i thought shaft had snapped took it right out then put it back ,checked re checked after chucking petrol into carbs and turning over with the help of a jump eventually it fired..!! then pissed oil out of filter either i put it in wrong or pressure pushed the rubber seal out a bit,,,but getting there run out of light..,,..ha got it fired up will run on full throtle for a while enough to warm engine so hopefuly i can now check tappets for valve timings as i know i kocked the settings whilst being"clever",. cos allthough going u can hear i missfiring no 1 cylinder