20 replies to this topic

[nicklouse]

Did the 1960's and 1970's single carbureted Mini's come with water heated manifolds?

Nope. It was the metro and trying to improve the emissions that brought it about.

 

the MG metro manifold was then the one to have. Everyone then copied it. 

[Rubbershorts]

Seen an interesting use for using the heated manifold yesterday. Instead of the breather pipe hose from the timing chain side of the engine reaching over the top of the engine to the Y piece connection of the breather on the other side, then going into the side of the carb, the guy had it going through the heated manifold. This neatened things up some what, but can anyone tell me if that's wise practice or not?

[KTS]

don't see why not, as long as the breather pipes are connected to allow any condensates to drain back into the breather canisters

 

bear in mind the MG metro manifolds have a void within the casting with tubes pressed in each side as the waterway, so oil etc is likely to pool within the manifold - shouldn't effect operation of the system, but may make a mess if/when you take the manifold off.  most aftermarket manifolds i'm aware of use a straight tube through the manifold so probably better suited

Edited by KTS, Yesterday, 05:24 PM.

[Spider]

Seen an interesting use for using the heated manifold yesterday. Instead of the breather pipe hose from the timing chain side of the engine reaching over the top of the engine to the Y piece connection of the breather on the other side, then going into the side of the carb, the guy had it going through the heated manifold. This neatened things up some what, but can anyone tell me if that's wise practice or not?

 

It'll work fine.

I hear you on the hoses from the Oil Separators, the Y piece and hoses everywhere. If you tend to do longer runs (50 miles +), you can do away with the separator on the timing chain cover, just run the one on the flywheel housing. If you need more breathers than this, then you have other issues you need to resolve. I found by running the 1 separator, it has neatened things up a LOT and made it much less cluttered around the radiator end of the engine.

[Rubbershorts]

Seen an interesting use for using the heated manifold yesterday. Instead of the breather pipe hose from the timing chain side of the engine reaching over the top of the engine to the Y piece connection of the breather on the other side, then going into the side of the carb, the guy had it going through the heated manifold. This neatened things up some what, but can anyone tell me if that's wise practice or not?

It'll work fine.

I hear you on the hoses from the Oil Separators, the Y piece and hoses everywhere. If you tend to do longer runs (50 miles +), you can do away with the separator on the timing chain cover, just run the one on the flywheel housing. If you need more breathers than this, then you have other issues you need to resolve. I found by running the 1 separator, it has neatened things up a LOT and made it much less cluttered around the radiator end of the engine.

Thanks Spider. Just out of interest, why does the milage affect wether the second seperator is a must or not? And would it be a case of just putting a filter on timing cover seperator if you were to remove the pipe?

Edited by Rubbershorts, Yesterday, 09:16 PM.

[Spider]

Thanks Spider. Just out of interest, why does the milage affect wether the second seperator is a must or not? And would it be a case of just putting a filter on timing cover seperator if you were to remove the pipe?

 

The Mileage is to be sure you are getting some heat in to the oil and for a period of time to dry out the oil of moisture. If you are going to leave the existing timing chain cover in place, cap off the outlet on the separator, don't fit a filter. Just be aware too if capping it off oil rots most rubbers, so you may need to leave a short hose on there with a bung in the hose. The original hoses were oil rated.