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[Martin_1962]

Compression OK, cam timing OK, may be a small air leak on the inlet - will fix when the 135 head gasket is replaced.

Have to use some throttle to start and it wizzes on the starter motor.

Would this be the start of crank sensor failure?

[Martin_1962]

BTW this is sometimes - usually starts easily

[The Cambelt Kid]

Sounds like the crank sensor to me.  I didn't think of this when mine started to fail, but i soon realised!

About £40 notes AFAIR

[hotel21]

codes?  Really need to explore that first, wouldn't you agree??

[Martin_1962]

No new codes

[feeutfo]

mine had a few episodes(4?) like this last year on really hot days parked up in the sun. Long crank on the key and a bit of a spltutter. No codes, not happened again since. Strange. Yours sounds a bit more regular though...?

[cem_devecioglu]

Sometimes happen to me also in hot days although the cranksensor is brand new (vx-so is cam sensor)..

I think either the fuel comes late or is too much :-/


and deffo no eml light..

[feeutfo]

thankyou cem, you reminded me, God my memory is crap. I have a tendency to put the key in and turn straight away, starting the engine before all the dash lights have gone out. Nothing unusual possibly, but a friend has a Lexus is 300 that is quite bad in this reguard. The fix is simply to allow the dash lights to go out, which gives the fuel pump enough time to prime the injectors and away it goes no problem. Apparently its been fine since following this rule.
Testing this theory on the omega when it only happens a few times a year will be difficult i guess and may not be part of the problem anyway. Who knows...?

But in Martins case if its unusual for his car and considering all the work done recently, i might be checking inlet and fuel etc.

[Martin_1962]

Fuel - hmm

Well I should be having a visitor this weekend who can help me

[cem_devecioglu]

thankyou cem, you reminded me, God my memory is crap. I have a tendency to put the key in and turn straight away, starting the engine before all the dash lights have gone out. Nothing unusual possibly, but a friend has a Lexus is 300 that is quite bad in this reguard. The fix is simply to allow the dash lights to go out, which gives the fuel pump enough time to prime the injectors and away it goes no problem. Apparently its been fine since following this rule.
Testing this theory on the omega when it only happens a few times a year will be difficult i guess and may not be part of the problem anyway. Who knows...?

But in Martins case if its unusual for his car and considering all the work done recently, i might be checking inlet and fuel etc.