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TAM2069

EXHAUST VALVE SEAT. LEAD FREE 1275CC INSERT

Hardened unleaded valve seats for 1.15" 1275 exhaust valves.

Require a recess of 1.2495"(31.737mm) diameter, plus or minus 0.0005" (0.013mm), and 0.250"(6.35m) deep at ambient temperature of 20C.
  • Was £7.43 exc vat
  • Was £8.92 inc vat
  •  
  • Now £6.32 exc vat
  • Now £7.58 inc vat

 In stock

 
help Recommended usage 4 x TAM2069 to fit one mini.
See details below of where TAM2069 is used in AKM manual.
 
1275 Except Cooper 'S' & Turbo - Qty 4

Cylinder Head 1275 Turbo & Heads with Triple Coll - Qty 4

Cylinder Head - Qty 4

 
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Manuals with this product

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1275 Except Cooper 'S' & Turbo

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Classic Mechanical Parts Manual
Cylinder Head 1275 Turbo & Heads with Triple Coll

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Fitting instructions / Articles

MSE4 - POST 1992 UNLEADED STAGE 2 (ROAD ROCKET) LARGE-BORE HEAD.


Modified to give maximum performance gain for cost.

Combustion chambers, inlet and exhaust ports extensively re-worked. Smoothed finish in ports - not mirror-finish polished to minimise drag. Multi-angle valve seats in head.Cooper S size valves with current maximum flow profiles and Tuftrided for durability/longevity when used with unleaded fuel (hence 'black' finish).

MSE3 - PRE 1992 UNLEADED STAGE 2 (ROAD ROCKET) LARGE-BORE HEAD.


Modified to give maximum performance gain for cost.

Combustion chambers, inlet and exhaust ports extensively re-worked. Smoothed finish in ports - not mirror-finish polished to minimise drag. Multi-angle valve seats in head.

MSE5 - PRE 1992 UNLEADED STAGE 2 (ROAD ROCKET) LARGE-BORE HEAD.


Combustion chambers, inlet and exhaust ports extensively re-worked. Smoothed finish in ports - not mirror-finish polished to minimise drag. Multi-angle valve seats in head. Cooper S size valves with current maximum flow profiles and Tuftrided for durability/longevity when used with unleaded fuel (hence 'black' finish). Combustion chamber volume used to give slight static compression ratio increase over standard. Head mods employed greatly increase volumetric efficiency

MSE9 - PRE 1992 UNLEADED STAGE 2 (ROAD ROCKET) LARGE-BORE HEAD,


Modified to give maximum performance gain for cost. Combustion chambers, inlet and exhaust ports extensively re-worked. Smoothed finish in ports - not mirror-finish polished to minimise drag. Multi-angle valve seats in head. Cooper S size valves with current maximum flow profiles and Tuftrided for durability/longevity when used with unleaded fuel (hence 'black' finish). Combustion chamber volume used to give slight static compression ratio increase over standard. Head mods employed greatly increase volumetric efficiency, boosting actual running (dynamic) compression ratio.

Cylinder Head - Unleaded Fuel Use


The specter of 'unleaded fuel only' - instigated in UK on January 1st 1999 and seemingly from decades ago across the rest of the world - seems to be forcing more and more folk into frightened, panic orientated action. And Mini owners are featuring heavily in this. See bottom for useful part numbers. The situation not at all being helped by all sorts of conflicting information from 'leaned' sources, such as lead levels in humans has declined greatly since 1935 - despite the rapidly expanding ownership of petrol-burning vehicles. And benzene and toluene used in unleaded fuels are cancerous. Still, the powers that be are relentlessly forcing through the 'no heavy metals in fuel' bills, not being at all put off by such trivia. Not surprising bearing in mind the complete debacle on the catalytic converter front - the type decided on for world wide and universal use was developed and tested in California!

MSE6 - POST 1992 Unleaded Stag


Modified to give maximum performance gain for cost. Combustion chambers, inlet and exhaust ports extensively re-worked. Stone-ground finish in ports promotes ultimate fuel atomisation. Three-angle valve seats in head. Super-quality MG Metro valves modified to increase airflow. MSE6 - POST 1992 unleaded stage 2 (Road Rocket) large-bore head Part No Applications: MSE6, TAM1059, TAM1061, TAM2069, 12G1963, 12G1015, ADU4905 Inlet Valves: 35.6mm(1.401") dia. Original equipment type P/No. TAM1059 Exhaust Valves: 29.2mm(1.150") dia. Original equipment type P/No. TAM1061 Exhaust seats: Latest type Beryllium-based for lead-free fuel P/No. TAM2069 Valve Guides: AE Hepolite cast iron P/No. 12G1963 Valve Springs: Nominal 140lb. Max actual valve lift 0.400" P/No. 12G1015 Stem Seals : Latest 'top-hat' design with tensioner springs (inlets) P/No. ADU4905 Chamber Volume: Nominal 20cc Combustion chamber volume used to give slight static compression ratio increase over standard.

MSE4 - Post 1992


Modified to give maximum performance gain for cost. Combustion chambers, inlet and exhaust ports extensively re-worked. Stone-ground finish in ports promotes ultimate fuel atomisation. MSE4 - POST 1992 unleaded stage 2 (Road Rocket) large-bore head Part No Applications: MSE4, C-AEG544, C-AEG106, TAM2069, C-AJJ4037, C-AEA526, ADU4905 Inlet Valves: 35.6mm(1.401") dia. Tuftrided EN214N s/steel P/No. C-AEG544 Exhaust Valves: 29.5mm(1.161") dia. Tuftrided EN214N s/steel P/No. C-AEG106 Exhaust seats: Latest type Beryllium-based for lead-free fuel P/No. TAM2069 Valve Guides: Magnesium bronze P/No. C-AEA526 Valve Springs: Nominal 180lb. Max actually valve lift 0.500" P/No. C-AJJ4037 Stem Seals: Latest 'top-hat' design with tensioner springs (inlets) P/No. ADU4905 Chamber Volume: Nominal 20cc Three-angle valve seats in head. Cooper S size valves with current maximum flow profiles and Tuftrided for durability/longevity when used with unleaded fuel (hence 'black' finish).

MSE3 -Pre 1992


Modified to give maximum performance gain for cost. Combustion chambers, inlet and exhaust ports extensively re-worked. Stone-ground finish in ports promotes ultimate fuel atomisation. MSE3 - PRE 1992 unleaded Stage 2 (Road Rocket) large-bore head Part No Applications: MSE3, C-AEG544, C-AEG106, TAM2069, C-AJJ4037, C-AEA526, ADU4905 Inlet Valves 35.6mm(1.401") dia. Tuftrided EN214N s/steel P/No. C-AEG544 Exhaust Valves 29.5mm(1.161") dia. Tuftrided EN214N s/steel P/No. C-AEG106 Exhaust seats Latest type Beryllium-based for lead-free fuel P/No. TAM2069 Valve Guides Magnesium bronze P/No. C-AJJ4037 Valve Springs Nominal 180lb. Max actually valve lift 0.500" P/No. C-AEA526 Stem Seals Latest 'top-hat' design with tensioner springs (inlets) P/No. ADU4905 Chamber Volume Nominal 20cc

Cylinder Head - Unleaded fuel use


The specter of 'unleaded fuel only' - instigated in UK on January 1st 1999 and seemingly from decades ago across the rest of the world - seems to be forcing more and more folk into frightened, panic orientated action. And Mini owners are featuring heavily in this.

C-AHT133 - Pre 1992 BUDGET UNLEADED STAGE 2 (ROAD ROCKET)


Modified to give maximum performance gain for cost.

LARGE-BORE HEAD, 24.5c chambers for large bore motors.

Inlet Valves: 35.6mm(1.401") dia. Original equipment type P/No. TAM1059
Exhaust Valves: 29.2mm(1.150") dia. Original equipment type P/No. TAM1061
Exhaust seats: Latest type Beryllium-based for lead-free fuel P/No. TAM2069
Valve Guides: AE Hepolite cast iron P/No. 12G1963
Valve Springs: Nominal 180lb. Max actual valve lift 0.400" P/No. C-AEA526
Stem Seals: Latest 'top-hat' design with tensioner springs (inlets) P/No. ADU4905

Chamber Volume: Nominal 21cc Modified to give maximum performance gain for cost. Combustion chambers, inlet and exhaust ports extensively re-worked. Smoothed finish in ports - not mirror-finish polished - to minimise drag. Multi-angle valve seats in head. Supe...