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X/Z18XE camshaft bearing caps order ???

X/Z18XE camshaft bearing caps order ???

Author
Discussion

Twibble

Original Poster:

3 posts

2 months

Saturday 12th August
quotequote all
Good morning/evening to one and all.

My dilemma is that I am rebuilding a cylinder head on an Opel Zafira.

The workshop manual says "Code numbers on camshaft bearing caps must match those on cylinder head." .......... unfortunately there are no stamps on the cylinder head and I mixed the caps up.

Would any of you kind gentlemen know in which order to put these things back?

Infinite thanks in advance for any assistance!

All the best,

Martin

stevieturbo

12,636 posts

169 months

Saturday 12th August
quotequote all
Put them back to the same locations you took them off.

Twibble

Original Poster:

3 posts

2 months

Sunday 13th August
quotequote all
stevieturbo said:
Put them back to the same locations you took them off.
stevieturbo, thanks for chipping in but that's the problem, I didn't note where they came from because the workshop manual led me to believe that they would be matched with numbers on the head as you can see from the diagram below.

The caps are stamped 0, 2, 3, 4, 5, 6, 7 & 8 and I'm trying to find where they go.


Mignon

216 posts

11 months

Sunday 13th August
quotequote all
It should be simple to identify where each cap came from by examining how the split lines match up with the ones in the head and also how the line boring or honing marks inside the journals align from the cap to the other half of the bore. Hopefully once you found which end of the head number 0 came from and which way round then all the others will follow suit.

Twibble

Original Poster:

3 posts

2 months

Sunday 13th August
quotequote all
Mignon said:
It should be simple to identify where each cap came from by examining how the split lines match up with the ones in the head and also how the line boring or honing marks inside the journals align from the cap to the other half of the bore. Hopefully once you found which end of the head number 0 came from and which way round then all the others will follow suit.
Thanks Mignon (how come someone with such a French name writes such brilliant English?), I was heading towards the same avenue, which I suppose could be called 'forensic mechanics'. I already have my torch and magnifying glass set out!
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stevieturbo

12,636 posts

169 months

Sunday 13th August
quotequote all
Other option while less ideal...

Bolt one cap up, and if the cam does not rotate freely...clearly it is in the wrong place. However to do this you'd probably need to remove all valvesprings, or maybe if lucky just the lifter removal may allow free rotation.

And when you don't know what you're doing...taking photos as you take stuff apart can always be helpful ( ideally before you take them apart too of course )

227bhp

5,453 posts

50 months

Sunday 13th August
quotequote all
Engines generally start with 1 at the pulley end and go from there.
You shouldn't need to go as far as putting a cam in, just put a cap on and feel for a step initially or use a small spring loaded bore gauge.