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Anon
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Ignition sequence question
Hi all,
So imagine I've been a complete knob and when trying to change spark plugs I've taken the last two (nearest to gear lever) spark leads off and forgotten whichlead went to which spark plug.
Yes this is indeed my first attempts at doing work on my van and ive made a shocking newbie error.
I know I need the distributor sending sparks to the correct plug in sequence but how do I sort this out, I have seen a message somewhere on the correct timings but I can't find it and how do you know which spark plug lead from the distributor should go to which plug?
I will be joining as a full member by PayPal this evening as I really need to absorb the knowledge of thus forum so I can start to do small repairs and maintenance on my cf and not wreck it.
Thanks for any help
Jim
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 Fri 01 Jun 2012 @ 19:54
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Anon
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If plugs 1 & 2 still have their original leads on then, from No 1 position on the distributor cap, the sequence (aka 'firing order') is 1 - 3 - 4 - 2 anti-clockwise around the cap.
And it's not just newbies that mix up plug leads ... 
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Fri 01 Jun 2012 @ 20:59
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Anon
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sequence
Hi Jim, welcome to the best cf club.If you know were No1 lead is on the dizy cap you must count anticlock wise.They go1342.anticlockwise .Going clockwise you start at 1 and form a Z then the Nos go 1234.I hope this helps Cheers +Beers Jim
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Fri 01 Jun 2012 @ 21:01
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Anon
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Thanks a lot for the replies gents, I have looked inside the distributor cap and seen a very small number 1 which seems to be Inbetween two of the distributor leads, is this how you identify the " number 1" position on distributor cap, or is the number one the spark plug that is nearest the bonnet and furthest from the gear stick?
Many, many thanks for your help.
Jim
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Fri 01 Jun 2012 @ 21:22
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Anon
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Also, I removed four NKG BPR6FS spark plugs and fitted four NKG BP6FS spark plugs that were in boxes in the back of the van that my brother had left when he sold it to me.
Is the fact that the "r" is missing from the spark plugs I fitted a problem?
I tried getting new plugs from halfrauds but they had no c,use about a thirty year old camper.
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Fri 01 Jun 2012 @ 21:30
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Anon
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Cap normally isn't marked.
Rotor contact position for No 1 cylinder should face the camshaft (exhaust side). However, this is when the distributor is correctly installed. This often isn't the case for a number of reasons - engine can run fine with No 1 position elsewhere.
One approach if distributor position cannot be assumed to be correct is to rotate the crankshaft until the pulley pointer aligns with the lower of 2 marks on the left side of the cambelt plastic cover -
At this position either No 1 or No 4 could be firing. (This can be seen from the distributor rotating only half a turn when the crankshaft pulley is rotated another full turn to align the pointer with the cover mark.)
So, guess at it being No 1 and connect plug leads in 1 - 3 - 4 - 2 order anti-clockwise from where the rotor contact points to in the cap.
If the engine starts & runs then that's it.
If the engine won't run (or tries to but spits and pops and bangs) then swap lead 1 with lead 4 then lead 2 with 3 (i.e. 4 - 2 - 1 - 3 order).
R in spark plug number denotes internal resistor for suppression of electrical interference along with resistive ('suppressed') plug leads. Engine shouldn't notice the difference but someone using a radio in the vicinity might.
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Fri 01 Jun 2012 @ 22:26
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Anon
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Thanks a lot phil,
I know it is only the last two plugs that may be swapped so I'll swap them and try the engine, see if it fires.
Jim
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Wed 06 Jun 2012 @ 12:36
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Anon
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Update.
Swapped the two leads and it started fine. :-)
Now want to do air filters and look at the timing.
Thanks for the help so far chaps
Jim
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Wed 06 Jun 2012 @ 18:28
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