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| techtalk:ih:oil03h [2025/02/23 04:04] – [Using the 1977-1982 outer separator plate (26493-75)] hippysmack | techtalk:ih:oil03h [2025/02/26 21:34] (current) – [Outer Plates and Shaft Seals] hippysmack | ||
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| ====== Build Kits / Parts ====== | ====== Build Kits / Parts ====== | ||
| - | No build kit was ever assembled / sold from the factory according to the parts catalogs. So individual pieces were sold. \\ | ||
| - | You can search individual part numbers on the net for seals and gaskets. \\ | ||
| - | Or you can search for aftermarket parts / kits. | ||
| - | MAKE SURE THE SEALS MATCH YOUR PUMP when using aftermarket parts. | ||
| - | Current " | ||
| - | The " | ||
| - | If you have the older style pump, the L83-85 seal between the plates won't work on the earlier plate as it is pressed into it's matching plate. \\ | ||
| - | Or James Gaskets makes a seal kit (JGI-77-XL). | + | No build kit was ever assembled / sold from the factory according to the parts catalogs. So individual pieces were sold.\\ |
| + | You can search individual part numbers on the net for seals and gaskets.\\ | ||
| + | Or you can search for aftermarket parts / kits. MAKE SURE THE SEALS MATCH YOUR PUMP when using aftermarket parts. Current " | ||
| + | The " | ||
| + | If you have the older style pump, the L83-85 seal between the plates won't work on the earlier plate as it is pressed into it's matching plate. | ||
| + | |||
| + | Or James Gaskets makes a seal kit (JGI-77-XL). | ||
| * It appears to come with: | * It appears to come with: | ||
| - | | + | |
| - | * Pump cover O-ring | + | * Pump cover O-ring |
| - | * (2) separator plate seals (77-E83 and L83-85) | + | * (2) separator plate seals (77-E83 and L83-85) |
| - | * Both check valve O-rings | + | * Both check valve O-rings |
| - | * Retainer ring | + | * Retainer ring |
| - | * Pump housing pin | + | * Pump housing pin |
| - | ====== Outer plate Seal ====== | ||
| + | ====== Outer Plates and Shaft Seals ====== | ||
| Either of the 2 outer plates for 1977-1990 XL oil pumps will work for all 1977-1990 oil pumps as long as you use the correct seal that matches the plate. \\ | Either of the 2 outer plates for 1977-1990 XL oil pumps will work for all 1977-1990 oil pumps as long as you use the correct seal that matches the plate. \\ | ||
| NOTE: **Using the 83-90 metal cased rubber seal in the 77-82 outer plate can lock up the oil pump**. \\ | NOTE: **Using the 83-90 metal cased rubber seal in the 77-82 outer plate can lock up the oil pump**. \\ | ||
| - | Be sure to install the correct seal for the plate you are using. \\ | + | Be sure to install the correct seal for the plate you are using. |
| + | If buying an aftermarket pump kit, you may have both shaft seals in the package. Only use the correct one for the plate you are using. \\ | ||
| + | {{: | ||
| + | Below are pics of the correct parts and part numbers. \\ | ||
| |{{: | |{{: | ||
| + | \\ | ||
| + | The damage below was caused by using the wrong seal (83-90 seal with the metal shell) in the 77-82 outer plate with the counterbored seal hole. The plates (when installed) are very close together and the 83-90 seal doesn' | ||
| + | |||
| + | Pics by Billy1200 of the XLForum ((https:// | ||
| + | {{: | ||
| ===== Using the 1977-1982 outer separator plate (26493-75) ===== | ===== Using the 1977-1982 outer separator plate (26493-75) ===== | ||
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| ====== Using the 1983-1990 plate (26493-75A) ====== | ====== Using the 1983-1990 plate (26493-75A) ====== | ||
| - | The seal (12036A) for use with this plate is constructed of a rubber inner piece bonded to a steel outside casing.\\ | + | The metal cased seal (12036A) for use with this plate is constructed of a rubber inner piece bonded to a steel outside |
| - | The seal is pressed into the outer plate hole (which has no counterbore). | + | |
| - | ((photos by disisme of the XLFORUM https:// | + | **Installation**: |
| + | It is pressed into the outer plate hole (which has no counterbore) from the return side of the plate with the casing facing the return gerotors. \\ | ||
| + | The seal isn't actually a press fit but more of an interferance fit so it doesn' | ||
| + | It has to go in either flush to the plate or sunk down below the plate a little so the inner plate or gerotors don't touch it. \\ | ||
| + | If the seal sticks out of the plate, it could possibly lock up the pump. \\ | ||
| + | |||
| + | * Known Methods for Installation: | ||
| + | * You can use a socket big enough to fit over the seal but small enough to fit thru the hole in the plate. \\ Then gently tap the seal in straight with a hammer. Tap different sides of the socket to keep the seal going in straight if needed. | ||
| + | * You can set the plate/ | ||
| + | * You can use a shop press with the plate/ | ||
| + | |||
| + | |||
| + | Below, return side of plate up, seal's metal casing up and pressed in the plate bore. ((photos by disisme of the XLFORUM https:// | ||
| |{{: | |{{: | ||
| |{{: | |{{: | ||
| + | \\ | ||
| + | |||
| + | **Using a hydraulic press**: \\ | ||
| + | This method was submitted by XLForum member, Fizzle, as an upgrade to his 1977 oil pump. \\ | ||
| + | His goal was to glue the seal squarely in place using a retaining compound so it could not come loose, stick out of the plate and jam up the pump. \\ | ||
| + | |||
| + | I removed the protective blue paint from the seal with 91% iso alcohol, then scuffed the OD of the seal and the ID of the plate with 600 grit wet/dry sandpaper. I then thoroughly cleaned the two parts with 91% iso alcohol and applied a liberal amount of anaerobic retaining compound to each. I chose to use Eskonke brand from Amazon because it's way cheaper than Loctite, I could get it next day, and Eskonke provides a very useful application chart for their products. \\ | ||
| + | {{: | ||
| + | |||
| + | I have a bench-top hydraulic press, so I positioned the seal in the hole and set the parts on a steel plate, covered them with a second plate (not shown), and pressed the seal in flush with the top of the outer plate. I found that the OD of a 5/16" flange nut fits nicely on the seal and within the hole of the outer plate. I used that to press the seal a bit deeper into the hole so it would be recessed on both sides of the plate. I could only guess on how much more to press it and got lucky, ending up with 030" on one side and .040" on the other. If I do this again for another pump, I could place something at the bottom of the hole to limit how deep I press the seal. \\ | ||
| + | All done! It takes 24 hours to fully cure. \\ | ||
| + | |||
| + | {{: | ||
| ====== Installing the Oil Pump ====== | ====== Installing the Oil Pump ====== | ||
