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====== REF: Oiling & Lubrication ======
====== L84-85 and 86-90 Oil Filter Mount Comparison ======
===== Side by side comparison =====
|{{:techtalk:ref:oil:85_and_86_filter_pad_comparison_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:oil:85_and_86_filter_pad_comparison_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:oil:85_and_86_filter_pad_comparison_3_by_hippysmack.jpg?direct&300|}}|

===== Line routing =====
**L84-85** \\
(filter on the return part of the oil system) \\

|  L84-85 Oil Filter Pad ((photo by Hippysmack))  |  Thread sizes. ((photo by Hippysmack))  |
|{{:techtalk:ih:oil:l84-85_oil_filter_mount_7_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:l84-85_oil_filter_mount_3_by_hippysmack.jpg?direct&300|}}|

**86-90**: \\
(filter on the feed part of the oil system) \\

|  86-90 Oil Filter Pad ((photo by Hippysmack))  |  Thread sizes. ((photo by Hippysmack))  |
|{{:techtalk:evo:oil:86-90_oil_filter_mount_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_oil_filter_mount_dims_1.1_by_hippysmack.jpg?direct&300|}}|

===== Oil filter adapter =====
**L84-85** \\
Filter adapter (33115-79): \\
The oil filter adapter threads are the same size from L84-90. \\
Both ends have the same I.D. with a single hole drilled straight through. \\
The check valve in 85 and prior models is in the oil pump. \\
Therefore, the filter adapter is not set up for the check valve. \\

|**L84-85 Oil Filter Adapter**. Each end has the same ID. Should work fine with a check ball and spring. ((photos by Hippysmack))  |||
|{{:techtalk:ih:oil:79-85_oil_filter_adapter_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:79-85_oil_filter_adapter_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:79-85_oil_filter_adapter_3_by_hippysmack.jpg?direct&300|}}|

**86-90**: \\
Filter adapter (33116-86): \\
Both ends have different I.D.s for use with either a check valve or a check ball. \\

|**86-90 Oil Filter Adapter**: Each end has a different ID. Installs with larger I.D. outward ((photos by Hippysmack))|||
|{{:techtalk:evo:oil:86-90_oil_filter_adapter_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_oil_filter_adapter_5_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_oil_filter_adapter_6_by_hippysmack.jpg?direct&300|}}|



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