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Oil Pumps » 30mm Oil Pumps
For all dual oil pressure cases

Mandatory with all hydraulic cams and lifters to maintain proper constant pressure in the lifter. Special larger pumps for engines that require over 60 pounds of pressure such as all out race engines running 5,000 to 10,500 RPM. These require our GB 239-239B oil pressure relief cover to protect blowing out coolers, oil passage plugs, or filters.

GB 234 30mm oil pump, late style for dual oil pressure relief cases.

GB 234A 30mm GB 234 plugged for use with an oil pressure relief valve full flow oil pump cover.

Gaskets

VW 111-115-131B Pump to cover

VWA111-115-131A Pump to case

Warning:

1. We do not sell or ever recommend using combination filter/pumps in any high performance engine due to the loss of required flow and extreme oil overheating which occurs when the hot cylinder head air is blown directly onto the filter.

2. We do not sell or ever recommend using any pump/cover combination that has both the inlet and outlet on the pump/cover due to loss of normal flow. You simply cannot take oil out and return it in the same small space without a great flow loss. See GB 239-241B and GB 246-248B for the correct way to make a full flow installation.

3. We do not sell or ever recommend using a cast iron body pump (such as Melling etc.) in the air cooled VW due to improper expansion rate as compared to the magnesium case. It normally provides far too much pressure when cold and not enough pressure due to leakage around the case hole when hot. It is common for them to suck air around the pump body from the cam gear area. This air in the oil radically reduces oiling ability, yet will not turn on the warning light.

 


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