78 Thompson's latest activity

  • 7
    78 Thompson replied to the thread Rear main seal 5.7.
    Not trying to be a smart Azz, but this is the article I was looking at, I'm no scientist, so maybe I'm misunderstanding it. check it out...
  • 7
    78 Thompson replied to the thread Rear main seal 5.7.
    My understanding by googling it, is that they are not the same. Fluoroelastomer is synthetic rubber, like Viton. PTFE is Teflon, I don't...
  • 7
    78 Thompson replied to the thread Rear main seal 5.7.
    So I talked to Fel-Pro and he said the correct one was BS-40520, standard nitrile and the BS40626 is the correct PTFE, for I believe...
  • 7
    78 Thompson reacted to Grub54891's post in the thread Rear main seal 5.7 with Like Like.
    When you get the old seal out be sure to check if the spring got left behind.
  • 7
    78 Thompson replied to the thread Rear main seal 5.7.
    Felpro has a different number too, Bs40626 looks like for 95 and older maybe. Guess I will have to contact Felpro see if I can get this...
  • 7
    78 Thompson replied to the thread Rear main seal 5.7.
    I’m getting some confusing information searching for this seal. When I search 96 Chevy k1500 , I get GM 10088158 which has an ID. Of...
  • 7
    78 Thompson replied to the thread Rear main seal 5.7.
    Just for future reference, how did you find the GM part number? Is there a site to search that or do you search a certain year Chevy...
  • 7
    78 Thompson reacted to Scott06's post in the thread Rear main seal 5.7 with Like Like.
    GM supplied the base engine to Mercruiser (tinned longblock), so the rear main seal is not made by mercruiser its made by GM (or for GM...
  • 7
    78 Thompson replied to the thread Rear main seal 5.7.
    I bought a Felpro gasket set and it didn’t come with that install sleeve, I’m thinking this wasn’t the PTFE seal. So the Felpro Bs40656...
  • 7
    78 Thompson reacted to kd4pbs's post in the thread Rear main seal 5.7 with Like Like.
    Yeah… the oil seal is lots easier if you do it after taking off the stand but before bolting on the flywheel. I put the seal housing on...
  • 7
    78 Thompson replied to the thread Rear main seal 5.7.
    I'm pretty sure I put sealant in them crotches, I went by the book, the Mercruiser manual, so if it said to do it, I did it. I did have...
  • 7
    78 Thompson replied to the thread Rear main seal 5.7.
    This is my serial number OK012416
  • 7
    78 Thompson posted the thread Rear main seal 5.7 in Mercury MerCruiser Sterndrives & Engines.
    I recently installed a rebuilt engine, a 96 mercruiser 5.7 I installed a Felpro rear seal, after reading more threads on rear seals, it...
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