No life in the old girl after I've refitted the head

[c8lnj]

Was the head refurbed or just taken from another car?? What made you change it in the 1st place?? Im not sure what your problem is but im about to attempt my 1st head change & will follow this post if I run into similar problems.

A while ago mine didnt fire up - just stopped one morning. I just stripped out every ignition parts & earth contacts & gave the contacts the best clean they have ever seen & it jumped into life 1st turn. I would go over them again just to be sure as I was going nuts for a few days thinking all sorts!!

[Ktuludays]

my m8 had the same symptoms when he had his head rebuilt.

we checked the ecu, injectors timing, spark the lot.

the fault was that the cambelt pulley had been fitted back to front.

once turned around the car was sweet as a nut.

may be worth checking it out.

[jaybv6]

my m8 had the same symptoms when he had his head rebuilt.

we checked the ecu, injectors timing, spark the lot.

the fault was that the cambelt pulley had been fitted back to front.

once turned around the car was sweet as a nut.

may be worth checking it out.

Already checked as the timing mark on the inside face of the cambelt pulley is visible.  I initially fitted it the wrong way round and when I could not see the puch mark realised it was incorrect and corrected it  .  Cheers for the suggestion though.

[rubjonny]

It's worth double checking that when the mark is lined up the #1 cams are both pointing up.  But there should be a punch mark on both sides of the cam wheel, at least all the ones I've seen have...
Is there an 'OT' mark on the outside of the cam wheel, this should line up with the 'OT' mark on the top of the cambelt cover if its a later one with the 2 piece plastic cover...

[jaybv6]

Was the head refurbed or just taken from another car?? What made you change it in the 1st place?? Im not sure what your problem is but im about to attempt my 1st head change & will follow this post if I run into similar problems.

A while ago mine didnt fire up - just stopped one morning. I just stripped out every ignition parts & earth contacts & gave the contacts the best clean they have ever seen & it jumped into life 1st turn. I would go over them again just to be sure as I was going nuts for a few days thinking all sorts!!

I had two snapped exhaust manifold studs so head removed, all studs replaced, decoked, valve stem oil seals done, Buckets replaced and then new head gaskets and seals put on when putting the head back on.

[jaybv6]

It's worth double checking that when the mark is lined up the #1 cams are both pointing up.  But there should be a punch mark on both sides of the cam wheel, at least all the ones I've seen have...
Is there an 'OT' mark on the outside of the cam wheel, this should line up with the 'OT' mark on the top of the cambelt cover if its a later one with the 2 piece plastic cover...

I'll check tonight but I am pretty sure there is only one punch mark as I fitted the cam wheel the wrong way round and we (my mate and myself) looked for the mark and could not find it.  I then found it on the outside where I'd put the wheel on the wrong way round.  My Cam Cover is the Metall one and not the plastic kind.

[Mr Blue]

has the blue sender been replaced?

Yes, blue sender is brand new.

i had the same problem with mine. this happend twice!
was the ignition moduel that sits ontop of the ecu.

Can you please be a bit more specific?  Dis you get a spark and was it turning your engine over?  Mine sparks and turns over but the fuel just isn't igniting.  It worked fine before the head removal.

The only thing that has changed is that I've removed the head, refitted the new head gasket and changed the injectors.   I'm planning to attach my old injectors (one was split) to just rule out the new ones having a higher flow rate.  Fingers crossed.

yes mate.

Had spark, had fuel, changed the large ecu, leads were in the right order + new leads and dizzy cap fitted blaa blaa.


Turned out to be the iginition moduel that sits ontop of the ecu. Soon as i changed it, it fired up.

Happend to to 2 digi engines ive had

[Thom89]

Have you tried a tow start yet?
Tom

[rubjonny]

Have you done a compression test yet?
I have a compression tester and a couple of ignition modules you could borrow...

[jaybv6]

Have you done a compression test yet?
I have a compression tester and a couple of ignition modules you could borrow...

I'm doing a compression test this evening.  I'll give you a shout John if I need to borrow an ignition module. 

Would I not get a spark if the ignition module was fubar?

My plan for this evening is to disconnect the fuel pump relay.  Crank the car over and build pressure up.  Do a compression test and once I am happy that the compression is there then I'll reconnect the fuel pump relay and give her a go.

It might be that I've not got the pressure in the new tappets yet, possibly?

What sort of compression figure am I looking for dry and wet?