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Blokeinamoke
 Post subject: Engine origin
PostPosted: Tue Dec 11, 2007 12:40 pm 
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My engine number is 99h834aj etc

I know its an English 998 but I am trying to find out what from - I have been told three various models

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Anto
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PostPosted: Tue Dec 11, 2007 2:43 pm 
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It's a pollution control engine, probably out of a late 998 Clubman. Or a Mini Clubman S. Or a Mini Clubman Van. Or possibly out of a Mini Moke.
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Blokeinamoke
 Post subject:
PostPosted: Tue Dec 11, 2007 3:28 pm 
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other than the carbon canister and all the associated plumbing what is the difference between a dirty 998 and an emissioned one?
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sports850
 Post subject:
PostPosted: Tue Dec 11, 2007 3:45 pm 
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A bit of paper somewhere that says it's cleaner . I'm not sure which versionit was , they started with the charcoal cannister etc but then later (77/8) they went to the full air pump system that injected fresh air into the exhaust ports to dilute the emissions gases and therefore make it cleaner on paper .

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sports850
 Post subject:
PostPosted: Tue Dec 11, 2007 3:46 pm 
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Oh , the head may have had a slightly different combustion chamber shape but not much really , main difference was the add on things like air pump and plumbing .

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drmini in aust
 Post subject:
PostPosted: Tue Dec 11, 2007 4:44 pm 
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99H834AJH was the common or garden variety smog 998 fitted to 1977-78 Clubby S and 998LS.
Chambers in a 998 smog head are just like any other 998 (except Cooper), the ports are small but can be made as big as a 202 one can, it just takes more time. :wink:

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9YaTaH
 Post subject: 1100
PostPosted: Tue Dec 11, 2007 5:30 pm 
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drmini in aust wrote:
99H834AJH was the common or garden variety smog 998 fitted to 1977-78 Clubby S and 998LS.
Chambers in a 998 smog head are just like any other 998 (except Cooper), the ports are small but can be made as big as a 202 one can, it just takes more time. :wink:


Hey Doc....does that mean there is hope for the 1098 smogsters as well :?: Shouldn't they be the same head :?: :D

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drmini in aust
 Post subject: Re: 1100
PostPosted: Tue Dec 11, 2007 6:41 pm 
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9YaTaH wrote:
drmini in aust wrote:
99H834AJH was the common or garden variety smog 998 fitted to 1977-78 Clubby S and 998LS.
Chambers in a 998 smog head are just like any other 998 (except Cooper), the ports are small but can be made as big as a 202 one can, it just takes more time. :wink:


Hey Doc....does that mean there is hope for the 1098 smogsters as well :?: Shouldn't they be the same head :?: :D

No such thing as a smog 1098 out here Mick, they were finished years before the air pump etc came in.

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