div class=trans-pagebuttonPage 1button div class=trans-image a href=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5page1jpg target=_blank amp-img class=trans-thumb alt=Page 1: vacpump - AOPA · The Sigma Tec pump drive is Airborne—the vanes run dry on alu- minum housing walls to watch for during any engine spray- src=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 2button div class=trans-image a href=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5page2jpg target=_blank amp-img class=trans-thumb alt=Page 2: vacpump - AOPA · The Sigma Tec pump drive is Airborne—the vanes run dry on alu- minum housing walls to watch for during any engine spray- src=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 3button div class=trans-image a href=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5page3jpg target=_blank amp-img class=trans-thumb alt=Page 3: vacpump - AOPA · The Sigma Tec pump drive is Airborne—the vanes run dry on alu- minum housing walls to watch for during any engine spray- src=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 4button div class=trans-image a href=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5page4jpg target=_blank amp-img class=trans-thumb alt=Page 4: vacpump - AOPA · The Sigma Tec pump drive is Airborne—the vanes run dry on alu- minum housing walls to watch for during any engine spray- src=https:reader042fdocumentsinreader042viewer20220307185b02e0817f8b9a89208b6654html5thumbnails4jpg width=142 height=106...