Tecumseh HSK70 Rebuild – Part 12 – Oil Seal Installation

This is part 12 in a series of rebuilding a Tecumseh HSK70. This engine ran short on oil and the connecting rod blew.

Tecumseh HSK70 – 130292U
Simplicity 755E Snow Thrower


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5 thoughts on “Tecumseh HSK70 Rebuild – Part 12 – Oil Seal Installation

  1. If you didn't notice oil leaking out around the oil seals, you are probably in good shape. If need be, you can replace them later, after reassembly. (I have a video for that!) One of the valves may have a mark on top (like an X) that would indicate the "Exhaust" valve. Otherwise, I find that the springs are nearly identical and it shouldn't be too big of a deal if they get switched. But in the future it's a good habit to keep them separate and labeled. Thanks for watching.

  2. I have a similar situation with my snow blower, the oil plug came out while I was blowing snow. I have it completely disassembled. I didn't know much about this stuff when I took it apart. I did not take the oil rings out. Do you recommend I do? I also didn't identify the vale springs and lifters as to where they came from. Will this create a problem for me when I put it back together. I'm following this series as I go and it has helped me tremendously. Thank you very much

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