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#41354 01/03/2005 10:45 PM | Joined: Mar 2002 Posts: 384 Shop Shark | | Shop Shark Joined: Mar 2002 Posts: 384 | I bought a rebuilt fuel pump for my 55.1 so I would get the extra vac for the wipers. The fuel pump arm that rides the cam will wear. Someone told me I should put a sacraficial wear plate or shoe on the fuel pump arm to eliminate the potential for wear on the cam. Is this realllly necessary???
Thanks - Scott
55 1st Chev.
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#41355 01/04/2005 7:17 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Usually the diaphragm wears out on the fuel pump long before the follower does. I wouldn't do anything, it gets oiled, and has less force on it than a valve lifter. You don't worry about your valve lifters wearing out, do you? Besides, if you put something on there and it shreds up it ends up in the oil.
Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#41356 01/05/2005 10:51 PM | Joined: Mar 2002 Posts: 384 Shop Shark | | Shop Shark Joined: Mar 2002 Posts: 384 | Thanks for the comments....makes sense to me. I appreciat the informed take on it. - Scott
55 1st Chev.
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#41357 01/06/2005 12:30 AM | Joined: Jun 2004 Posts: 103 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2004 Posts: 103 | Speaking of fuel pumps - can the diphragm be replaced easily, or is a new pump the best route to go when the diaphragm goes? Mine is seeping a bit at the edges, but is not getting in the oil yet. I check the oil on a regular basis - it is not thin nor does it smell of gas - yet.
BW | | |
#41358 01/06/2005 3:18 AM | Joined: Oct 2003 Posts: 124 Member | | Member Joined: Oct 2003 Posts: 124 | The diaphram is easy to replace, but finding one is a little difficult. They're not that cheap really ($19 or so), and I wonder that if I bought one - perhaps it's been on the shelf for several years.
So I think a rebuild pump is a safer bet overall. However, if you bought a rebuild kit in decent shape - and keep the diaphram in good condition with silicon spray, it would be good insurance on a long trip. | | |
#41359 01/06/2005 3:23 AM | Joined: Dec 2001 Posts: 1,745 Member | | Member Joined: Dec 2001 Posts: 1,745 | When I had my fuel pump off I found it was pretty hard to operate. I thought it was normal, but you say it should move pretty freely?
54 3100 with 235
62 flatbed dump C60 with 261
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#41360 01/06/2005 6:55 AM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | The pump has a pretty stiff spring in it. Hard to move by hand.
Also, you can buy pumps for these trucks at a mom & pop parts store. When I bought a new pump for my 235, they had 3 options. No sediment bowl, with bowl, and with bowl and vacuum pump. They had all three on the shelf. Can't recall the exact price, I think the vacuum pump model was around $60. And these wre new pumps, not rebuilds.
Fred
52 3600
69 C-10
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