Andrew Cleland wrote:
> 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.
Just to follow-up on my own post, I think I have the correct part
numbers now. If anyone else needs them, they are:
Thrust Plate, Camshaft. Interim, 3.9, - ERR5926
Thrust Plate, Camshaft. Late, 4.0/4.6 - ERR2609
AC.
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