jetdriven Posted September 10, 2017 Report Posted September 10, 2017 I haven't seen a wet pump in a J. But I just did the rapco 215CC pump on mine and it came with a gasket with 12 holes instead of 4. Is this the gasket you're talking about? 1 Quote
MIm20c Posted September 10, 2017 Report Posted September 10, 2017 I understand why vac driven AI's get a bad name. However, so far I have no complaints and just figure $0.30-.40 an hour maintenance cost. Probably about the same as replacement batteries for the electric backup AI units. Honestly it gives me piece of mind to have a backup separate from my single battery and alternator. Quote
carusoam Posted September 10, 2017 Report Posted September 10, 2017 Great photos TonyK! Thanks, for sharing them. Best regards, -a- Quote
MBDiagMan Posted September 12, 2017 Report Posted September 12, 2017 On September 9, 2017 at 1:48 PM, LANCECASPER said: The coupler sheared Just as he feared .. And as for the AI, the pump would no longer suck it. 3 Quote
MBDiagMan Posted September 12, 2017 Report Posted September 12, 2017 On the more serious side of the thread... About a hundred hours after I bought my Cessna 140, the vacuum pump went out, yes Cessna 140, it is an instrument plane with a custom panel with six pack, center stack, glide slope, Etal.... The pump was a typical dry vane version. The mechanic said they only last about four or five hundred hours. Quote
TonyK Posted September 14, 2017 Author Report Posted September 14, 2017 It's so nice and shiny. Quote
Hank Posted September 14, 2017 Report Posted September 14, 2017 That looks nice! Cool baby calipers, too . . . 1 Quote
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