{"id":9717,"date":"2011-12-18T00:40:15","date_gmt":"2011-12-18T07:40:15","guid":{"rendered":"http:\/\/giuliettas.com\/?p=9717"},"modified":"2011-12-18T00:40:15","modified_gmt":"2011-12-18T07:40:15","slug":"glas-1700-gt-rebuilding-the-fuel-pump","status":"publish","type":"post","link":"https:\/\/rufushamilton.com\/giuliettas\/2011\/12\/18\/glas-1700-gt-rebuilding-the-fuel-pump\/","title":{"rendered":"Glas 1700 GT: rebuilding the fuel pump"},"content":{"rendered":"

Update: <\/strong>I made a little Glas GT dedicated page<\/a> above -check it out!
\n<\/strong><\/p>\n

<\/strong>The Glas GT has a Weir type fuel system similar to the Porsche 911’s.\u00a0 Two single throttle-body Solex carbs are fed from a remote float chamber.\u00a0 Fuel pressure is maintained by a pair of mechanical fuel pumps operating off the same shaft.\u00a0 I haven’t worked out the fuel path yet but it looks like one pump keeps the float bowl fed from the gas tank, and the other pumps fuel to the carbs.<\/p>\n

\"\"<\/a><\/p>\n

The finished product -well, almost, I still need to make some paper gaskets and get some little copper crush washers.\u00a0 Filter chamber covers have been plated and polished, screws just plated.\u00a0 Very nice!<\/strong><\/p>\n

<\/strong>\"\"<\/a><\/p>\n

The diaphragms.\u00a0 As they move in and out, fuel is pushed through a one-way valve.\u00a0 Gas tank sits higher in the car than the pump so gravity keeps more fuel waiting to be pushed through that valve.\u00a0 These are available at about $40 each -good thing these are serviceable.<\/strong><\/p>\n

\"\"<\/a><\/strong><\/p>\n

Fuel comes in the big orifice at about 10 of the clock via the bent tube.\u00a0 Goes out the through the straight line.<\/strong>\"\"<\/a><\/p>\n

While I cleaned up the body parts of the pump, I plated the screws that hold it together.<\/strong><\/p>\n

<\/strong>\"\"<\/a><\/p>\n

Here’s the pumping linkage.\u00a0 Tiny little C clips on a tiny pin used as the lever pivot, and the lever itself.\u00a0 That green bit in the background is part of one of the <\/strong>seals I need to cut.\u00a0<\/strong><\/p>\n

\"\"<\/a><\/p>\n

Big part at the top is the pump rod housing.\u00a0 The part on this side pushes on the split levers, the other side has a rod that projects into the engine and is driven in and out off a cam lobe<\/strong> on the distributor drive shaft.<\/strong>\u00a0 In the foreground are the filters and filter housings fresh from the plating tank.<\/strong><\/p>\n

\"\"<\/a><\/p>\n

Some of the bits get assembled.\u00a0 The seal I need to make goes between the filter housing cover and the filter seen here.\u00a0 Originals were made of paper.\u00a0 I’m thinking the seals can be cut from the Alfa Weber DCOE to air-box gaskets in the background -ID of the opening is perfect!\u00a0 Plated screws look great.\u00a0 It’s a sacrificial zinc coating that should last years -but not stay this shiny.<\/strong><\/p>\n

<\/strong> \"\"<\/a><\/p>\n

A single shaft presses on 2 levers -one of which is installed here.\u00a0 It lifts the shaft of the diaphragm and pumps the fuel.\u00a0 This chamber was full of hard old grease.\u00a0 Now it will be full of nice new red grease.
\n<\/strong><\/p>\n

\"\"<\/a><\/strong><\/p>\n

All together now.\u00a0 The other side of the finished product.\u00a0 No one will ever see those plated screw heads, but I know they look good so there.<\/strong><\/p>\n

It’s a small thing, but it’s the first step towards a finished car.\u00a0 A sub-assembly all ready for action.\u00a0 Up next, the head, the starter, the cam box or?\u00a0 Lots to do!<\/p>\n

Need some work done to your Glas GT?\u00a0 Drop me a line!<\/p>\n","protected":false},"excerpt":{"rendered":"

Update: I made a little Glas GT dedicated page above -check it out! The Glas GT has a Weir type fuel system similar to the Porsche 911’s.\u00a0 Two single throttle-body Solex carbs are fed from a remote float chamber.\u00a0 Fuel pressure is maintained by a pair of mechanical fuel pumps operating off the same shaft.\u00a0 … <\/p>\n

Continue reading “Glas 1700 GT: rebuilding the fuel pump”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[76],"tags":[142],"class_list":["post-9717","post","type-post","status-publish","format-standard","hentry","category-glas-1700-gt","tag-glas-1700-gt"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/rufushamilton.com\/giuliettas\/wp-json\/wp\/v2\/posts\/9717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rufushamilton.com\/giuliettas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rufushamilton.com\/giuliettas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rufushamilton.com\/giuliettas\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rufushamilton.com\/giuliettas\/wp-json\/wp\/v2\/comments?post=9717"}],"version-history":[{"count":0,"href":"https:\/\/rufushamilton.com\/giuliettas\/wp-json\/wp\/v2\/posts\/9717\/revisions"}],"wp:attachment":[{"href":"https:\/\/rufushamilton.com\/giuliettas\/wp-json\/wp\/v2\/media?parent=9717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rufushamilton.com\/giuliettas\/wp-json\/wp\/v2\/categories?post=9717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rufushamilton.com\/giuliettas\/wp-json\/wp\/v2\/tags?post=9717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}