Differences
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| techtalk:ih:oil03h [2025/02/21 01:10] – [Using the 1983-1990 plate (26493-75A)] 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**. \\ |
| + | 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. \\ | ||
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| + | Below are pics of the correct parts and part numbers. \\ | ||
| + | |{{: | ||
| + | \\ | ||
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| + | 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) ===== | ||
| The seal (12036) for use with this plate is constructed of rubber and it simply slides down the driveshaft during installation resting against the inner plate. It also covers the retainer ring. The seal does not fit tight into the counterbore of the outer plate. The outer plate, once installed, simply sandwiches the seal between both plates with the outer plate' | The seal (12036) for use with this plate is constructed of rubber and it simply slides down the driveshaft during installation resting against the inner plate. It also covers the retainer ring. The seal does not fit tight into the counterbore of the outer plate. The outer plate, once installed, simply sandwiches the seal between both plates with the outer plate' | ||
| + | |||
| + | Consider upgrading to the 82-90 outer plate AND it's corresponding seal. The plate is the same width and the seal is better. \\ | ||
| ====== 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/ | ||
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| + | |||
| + | 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. \\ | ||
| + | {{: | ||
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| + | 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 ====== | ||
