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Posted (edited)

Hi guys looking for a L26/ L24 externally oilded camshaft must we in good condition as it will be used for a period of time.

Looking for a C or A grind

PM me what you have and how much and we can sort something out

Chris

Edited by blu260z
Posted

Nissan used to sell the blanking plates to convert the cam towers from spray bar type, to the later internal oiled type.

They mst have felt this was an upgrade.

If you want to run an internal, and a spray bay, you'd need to make sure you have sufficient oil volume, and pressure to allow for all the extra "leaks", a Turbo 280ZX pump inly supplies around 15% greater volume, but no greater pressure, unless you fit the Nismo twin relief springs, which give a slight increase in pressure throughout the oil system, but this puts greater wear on the oil pump drive gears, as they have to work harder.

The other advice, is to enlarge by 1mm the oil feed orifice that is in the top deck of the block, this helps to flood the valve train.

 

If you cant find an non-drilled cam, run an internal, but blank off the spray bar feeds.

Have seen quite a few spray bars where the ends have simply broken off due to harmonics, easily silver soldered back on!

  • Administrators
Posted

Yeah externally oiled ones the spray bar breaks off at the ends, had that problem in my 73 240z. Hence I went internally oiled on my E31.

 

Sadly I think I turfed my A grind cam. I might try look for it but think it went with a bunch of stuff I threw out.

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