I don't know about the 117 engine, but I did my seals on the 103 with a compressor (screw type) from Advance Auto ...I think it was 19.95.

Jeff

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Jeff

97 E320, ours 217,000miles
91 190E 2.6 daily driver 242,000miles
74 MGB,mine 120,000?
2006 BE350/Proline 21, 50 hours