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vnavaret Member 
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Lads: Finished tearing down my engine in preparation for a trip to the machine shop. Getting some of the studs out was a real b****. Heat, penetrating oil, a stud puller and an impact wrench were necessary. Whew! I came across this piece of sheet metal on the rear of the crank. It seemed to be causing an oil leak because one of the fingers was jammed between the rear seal housing and the block. What the heck is this for? Martin Robey shows it, but only says "NLA" no name or description. Part number 36 in the attached screen capture. Does anyone know, and is it really necessary? Vance Attachment: Screenshot 2025-01-31 142937.jpg (Downloaded 38 times) |
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Jh092 Member
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Vance, I’m like you. I don’t know what it is, probably an oil slinger, but I have to believe that it is necessary. Colin Chapman never added anything that wasn’t needed. That being the case, it’s probably designed to the barest minimum to save weight and or dollars. |
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vnavaret Member
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Well, I found a reference that calls it a "Spray Shield". Apparently to protect the rear main seal from oil spray? Vance |
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Esprit2 Member
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Yes, Lotus called it the "Sprayshield", Lotus part number B907E0662Z. There's a lot of violent turbulence back in that "rear seal" area of the engine, and the sprayshield was supposed to minimize the amount of oil spray that would directly impinge upon the rear main seal... thus minimizing oil leaks. In Lotus' own, much later "Service Notes" (ie, Workshop Manual), they added a note stating that the use of the sprayshield was optional, and not required. If you don't have one, don't go nutz trying to find one. But if you have one, then I strongly recommend that you install it. Regards, Tim Engel |
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