Head Gaskets
- Thread starter Danny
- Start date
mines got a bonnet
New member
i've always got the metro turbo pack for my mod'ed minis. the head and manifold gaskets have always seemed better quality and a bit thicker. manifold one is usually oversized compared to mini one and so easy to get a seal. i have always just got them from my local con artist (motor factors) or in the early days, halfords ( but only cos i took a second job there during my apprenticship andso got staff discount). this doesn't really help does it, but i would go for the turbo one though.
best of luck
best of luck
Hi,
Before Rover went tits-up, all the 1275 head-gaskets were upgraded to turbo spec, so one head gasket did everything.
The compression is changed by the size of the dish in the piston, as all heads left the factory with around 24.4cc's, turbo or normally asperated. the turbo head differs from that of a normally asperated head by having thinner port/combustion chamber walls to allow more heat to be transfered to the coolant.
Before Rover went tits-up, all the 1275 head-gaskets were upgraded to turbo spec, so one head gasket did everything.
The compression is changed by the size of the dish in the piston, as all heads left the factory with around 24.4cc's, turbo or normally asperated. the turbo head differs from that of a normally asperated head by having thinner port/combustion chamber walls to allow more heat to be transfered to the coolant.
toyotacat1
New member
The turbo head also has bigger valve's to let fuel in quicker to also aid cooling and exhaust the combustion gases faster !
Lee
Lee
Hi,
Lee
The turbo head has standard size valves.
The Exhaust valves are sodium filled to dissipate heat quicker from the head, have larger size stems to aid hear transfer and have larger rocker clearance due to greater linier expansion.
Dan,
Use a standard gasket unless you are running high a compression head. If you are using the above then use a Payen copper gasket or a performance one.
Lee
The turbo head has standard size valves.
The Exhaust valves are sodium filled to dissipate heat quicker from the head, have larger size stems to aid hear transfer and have larger rocker clearance due to greater linier expansion.
Dan,
Use a standard gasket unless you are running high a compression head. If you are using the above then use a Payen copper gasket or a performance one.
Hi dan,
Torque the head in the correct sequence( see haynes book of fairy tales) when fitting the head,and retorque as soon as the temperature of the engine reaches normal operating temperature. you will need to re-adjust your rockers after doing this. Shouldn't need to retorque after this.
Torque the head in the correct sequence( see haynes book of fairy tales) when fitting the head,and retorque as soon as the temperature of the engine reaches normal operating temperature. you will need to re-adjust your rockers after doing this. Shouldn't need to retorque after this.