Another one for the P4 experts

2

2Diesels

Member
My friend with the 95 is having running problems which I suspect are mainly down to a knackered dizzy & low octane petrol, but one P4 "expert" has told him it's more likely to be the valve timing 180 degrees out :shock: Surely it just wouldn't run at all or are we missing something??

Regards Col
 
I can't see it would run at all with the timing 180 degrees out . Does it run ? Symptoms ? Has someone been working on it or did something happen before it stopped running properly ?

Has this engine got ovehead inlet,side exhaust valves ? With the engine on TDC and No 1 inlet valve closed , the rotor arm should be pointing at number 1 segment in the cap
 
2Diesels said:
My friend with the 95 is having running problems which I suspect are mainly down to a knackered dizzy & low octane petrol, but one P4 "expert" has told him it's more likely to be the valve timing 180 degrees out :shock: Surely it just wouldn't run at all or are we missing something??

Regards Col
Click to expand...

It would try to fire on the exhaust stroke? :shock:
 
DaveHerns said:
I can't see it would run at all with the timing 180 degrees out . Does it run ? Symptoms ? Has someone been working on it or did something happen before it stopped running properly ?

Has this engine got ovehead inlet,side exhaust valves ? With the engine on TDC and No 1 inlet valve closed , the rotor arm should be pointing at number 1 segment in the cap
Click to expand...
He's only had the car a few weeks it runs but is unhappy & pinks badly & the dizzy rattles but he has since bought a new one though the drive was the opposite way round & it has stopped pinking but there's still a rabbit off somewhere
quattro said:
It would try to fire on the exhaust stroke? :shock:
Click to expand...

Exactly what I said Richard but this was a P4 specialist that told him :?

Regards Col
 
Could be 18 degrees out but not 180 !
Perhaps he should find another "specialist" ?
Timing up a P4 can't be that hard
 
Exactly Dave, I'll look in my old P5 book basically the same engine, trouble is I'm in North/ld & he's in Wiltshire :roll:
 
The following may have been a dream but I seem to remember having put my 2000tc into a somewhat dodgy garage for a quick tune-up before its MOT, to find A it failed its MOT outstandingly and B that the dizzy was 180 degrees from where it should have been, meaning that the engine ran like a dolphin (eg not very well) I thought nothing of the dizzy assuming the garage knew what they were doing, however, on closer inspection I found this to be the case.
 
It's come to me in a blinding flash :shock: Of course it'll run as No.1 & No.6 both come up together 1 on compression & the other on exhaust so if the cam is 180 out then providing you swap the leads & instead of 135624 you make it 624135 & time it up using No.6 as No.1 then it'll run, anyway it seems ok at the minute so I think he's going to leave it alone

Regards Col
 
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