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unknown cylinder head?

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VeG

Post subject: unknown cylinder head?

Posted: Fri Dec 23, 2005 2:38 pm

848cc

Joined: Tue Nov 08, 2005 11:20 am
Posts: 301
Location: West Lakes Shore, Adelaide S.A

I was stuffin around in the shed today and came across my old cylinder head from my clubman (its cracked and i still havent fixed it). On further inspection i discovered the casting number is not one i have seen before. Where my other two heads have 12G202, this one has ECAM4004. Also noticed the inlet and exhaust ports are alot bigger than the 12G202, but this head my have had work done as it was on the car when i bought it about 3 yrs ago. So does anyone know what the hell an ECAM4004 head is?? coz im stumped.

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minicranks

Post subject:

Posted: Fri Dec 23, 2005 4:11 pm

998cc

Joined: Tue Apr 06, 2004 4:30 pm
Posts: 871
Location: welington new zealand

cam 4810 is the other number on it it comes form a A+ 998 and is the later model type with bigger exhaust ports on it.
I was handleing one today.

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www.minicranks.com add me to your watch list and come back again soon, under construction.

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drmini in aust

Post subject:

Posted: Fri Dec 23, 2005 4:27 pm

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39752
Location: near Baulkham Hills, NSW

it's a late head, 998 I think- does it have air injection ports on the front, near the spark plugs?

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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VeG

Post subject:

Posted: Fri Dec 23, 2005 4:28 pm

848cc

Joined: Tue Nov 08, 2005 11:20 am
Posts: 301
Location: West Lakes Shore, Adelaide S.A

ill have a sqiz......

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VeG

Post subject:

Posted: Fri Dec 23, 2005 4:30 pm

848cc

Joined: Tue Nov 08, 2005 11:20 am
Posts: 301
Location: West Lakes Shore, Adelaide S.A

nope, looks normal as

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VeG

Post subject:

Posted: Fri Dec 23, 2005 4:33 pm

848cc

Joined: Tue Nov 08, 2005 11:20 am
Posts: 301
Location: West Lakes Shore, Adelaide S.A

minicranks wrote:

cam 4810 is the other number on it it comes form a A+ 998 and is the later model type with bigger exhaust ports on it.
I was handleing one today.

so its unleaded? or where some of the A+'s still leaded?

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drmini in aust

Post subject:

Posted: Fri Dec 23, 2005 6:23 pm

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39752
Location: near Baulkham Hills, NSW

Early A+ were leaded, up until `86, `87 or so.

Rover unleaded exhaust seats are austenitic steel (ie non-magnetic). Pull the exhaust valves, then see if a magnet (Mini sump plug will do) will stick to the seats in the head. If not, it's unleaded. :wink:

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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minicranks

Post subject:

Posted: Fri Dec 23, 2005 8:09 pm

998cc

Joined: Tue Apr 06, 2004 4:30 pm
Posts: 871
Location: welington new zealand

you can tap it and also hear a diffenret sound but only if you know what your listeneing for.
89 for the metros to come unleaded i think and the 998 A+ also came out in the metro. wow that must have been under powered.

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www.minicranks.com add me to your watch list and come back again soon, under construction.

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VeG

Post subject:

Posted: Fri Dec 23, 2005 9:17 pm

848cc

Joined: Tue Nov 08, 2005 11:20 am
Posts: 301
Location: West Lakes Shore, Adelaide S.A

yea the motor ran like crap till i put my new 12G202 on it. Why would anyone put a 998 head on an 1100 motor?

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drmini in aust

Post subject:

Posted: Fri Dec 23, 2005 9:37 pm

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39752
Location: near Baulkham Hills, NSW

VeG wrote:

yea the motor ran like crap till i put my new 12G202 on it. Why would anyone put a 998 head on an 1100 motor?

Because they got one..
Our Barney had a 998 with the 998 smog head- a well known Mini place (now defunct) put a 1098 crank & pistons in. Didn't even bother to fit a harmonic balancer, they left the 998's tin crank pulley on instead. Not good news for the longer stroke crank.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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Keith Calver

Post subject:

Posted: Sat Dec 24, 2005 5:29 am

848cc

Joined: Wed Sep 14, 2005 1:08 pm
Posts: 63
Location: England

Ahem - The genuine Rover inserts are copper-berylium (sorta orangey coloured) not steel. KC.

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drmini in aust

Post subject:

Posted: Sat Dec 24, 2005 6:17 am

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39752
Location: near Baulkham Hills, NSW

Keith Calver wrote:

Ahem - The genuine Rover inserts are copper-berylium (sorta orangey coloured) not steel. KC.

Maybe now? but the ones I got from MiniSpares UK in Rover packets are not. Either the 998 or 1275 ones. :wink:

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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