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These are the exhaust valve seats for lead free small bore cylinder heads 850/998/1100. If you require inlets see TAM2152. Fitted from 1988 with introduction of press fit high compression pistons although many earlier heads have used this modification. Also fits the Sprite , MG Midget , and Morris Minor.


Recess required is 1.1245"(28.56mm) plus or minus 0.0005"(13mm)and 0.190" (4.83mm)deep at room temp of 20.
Classic Austin Mini exhaust valve seat 1.0 lead free

Classic Austin Mini exhaust valve seat 1.0 lead free

Classic Austin Mini exhaust valve seat 1.0 lead free
Part No: TAM2068
$24.95
Qty:
Fits the following:
Classic Mini
Sprite & MG Midget
Morris Minor
These are the exhaust valve seats for lead free small bore cylinder heads 850/998/1100. If you require inlets see TAM2152. Fitted from 1988 with introduction of press fit high compression pistons although many earlier heads have used this modification. Also fits the Sprite , MG Midget , and Morris Minor.


Recess required is 1.1245"(28.56mm) plus or minus 0.0005"(13mm)and 0.190" (4.83mm)deep at room temp of 20.
 
 
Question:
I have a standard 998cc engine and currently refurbishing the head (12A1458). I would like to convert it to lead-free. Can you please send me the dimensions of the seats you offer? My machinist told me to search for the following: Unleaded Exhaust Valve seats: 26.5mm Outside diameter 20mm Inside diameter Unleaded Inlet Valve seats: 28.5mm Outside Diameter 22mm Inside Diameter Would appreciate your help with this.
Answer:

We offer an exhaust seat for that head, but no intake seats:

https://www.minimania.com/part/TAM2068/Classic-Austin-Mini-Exhaust-Valve-Seat-10-Lead-Free

Generally, hardened seats for intake valves in iron heads aren't necessary.

Here's the info you requested:

Recess required is 1.1245"(28.56mm) plus or minus 0.0005"(13mm)and 0.190" (4.83mm)deep at room temp of 20C.

Mini Mania Tech Team

The Classic Mini Parts and Accessories Experts

 
 
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