Badger wrote:
> "AndyC" <cleland72@[EMAIL PROTECTED]
> wrote in message
>
news:7ed23c66-e1e2-44f1-9f90-445f9a340eb5@[EMAIL PROTECTED]
> On Jul 7, 10:39 am, "GbH" <Geoff_Hanning...@[EMAIL PROTECTED]
> wrote:
>> AndyC wrote:
>>> I've just got a new camshaft for the 3.9i I'm rebuilding for the 110.
>>> It's one with the step machined into the end by the timing gears to
>>> allow it to work with the retaining plate fitted to the later engines.
>>> I know the interim engines (gear driven oil pump and dizzy) had a
>>> full- circular retaining plate and then on the 4.0 and 4.6 LR moved
>>> to a semi-circular plate. Does anyone know if the critical dimensions
>>> are the same for both types of plate (i.e. will either work with my
>>> cam)? The semi-circular ones seem easy enough to get hold-off, the
>>> interim ones less so - in-fact I can't even find a part number for
>>> them.
>>> I'm assuming it's a good idea to fit one - it's just a case of
>>> drilling and tapping a couple of holes in the block (avoiding oil
>>> ways) and I know the original method of location, relying on a taper
>>> on the cams reacting against the lifters, isn't considered a
>>> particularly great bit of engineering.
>>> Cheers,
>>> Andy.
>> Ask Badger, I'm sure he will know.
>>
>> --
>> Wisdom and experience come with age, they say, but I wish I could
>> remember the darn question
>
> Yes, hopefully he'll be along with his vast wisdom.
>
> Digging a bit further, it looks like the thrust plates are different,
> with the 4.0/4.6 having a smaller diameter. As my cam was sold as for
> a 3.9, it looks like I'll need the larger, interim, thrust plate -
> anyone know its part number?
>
>
> The plates are indeed different and you need the right one. Sorry, I
don't
> have the part number to hand, but be carefull when drilling the holes as
> they are offset slightly below the cam centreline to give clearance to
the
> oil galleries.
> Badger.
>
>
Thanks Badger. I'll keep digging for a part number and exercise care
with my drill!
Andrew.
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