Author Topic: So many lines! What do they all do?  (Read 37975 times)

Offline fmxr47

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Re: So many lines! What do they all do?
« Reply #60 on: March 07, 2016, 06:46:56 PM »
I don't have those but a kid I work with does, the hose clamp is the part I'm worried about


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Offline hatzie

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Re: So many lines! What do they all do?
« Reply #61 on: March 07, 2016, 08:14:11 PM »
The problem with turning  it is that the inlet on the rear would hit the heater box and the filter isn't plumbed up at all right now, just the spin on. I'm thinking I will just put it at the rear of the intake like normal. The hoses just look like no fun to mess with down there, I'm dreading changing the supply hose to the ip


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Why not mount it where GM put em... behind the upper intake.

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Offline fmxr47

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Re: So many lines! What do they all do?
« Reply #62 on: March 08, 2016, 07:14:59 PM »
so I mounted the housing in its proper home, what a pain!!!! And I cannot get this air bubble out even feeding it to the housing and venting the top it just doesn't leave the line


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Offline 1967KaiserM715

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Re: So many lines! What do they all do?
« Reply #63 on: March 08, 2016, 08:06:55 PM »
If the bubble doesn't move, and there are no bubbles moving to or leaving, it doesn't matter. It's much like the airspace seen in the old fuel pumps with the glass bowls( heck even the clear plastic filters will have a bubble)


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Current Vehicles:1985 GMC K10(Daily) 1991 GMC K2500(Daily) 1975 Beetle(not running) 1985 Mercedes 300D(not running) 1952 M35    1967 M715(not running)
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Offline fmxr47

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Re: So many lines! What do they all do?
« Reply #64 on: March 08, 2016, 08:13:37 PM »
I want to put a fuel pressure gauge on it then I will test drive it again and monitor what's going on


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Offline 1967KaiserM715

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Re: So many lines! What do they all do?
« Reply #65 on: March 08, 2016, 08:24:18 PM »

I want to put a fuel pressure gauge on it then I will test drive it again and monitor what's going on


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Good idea, should be at 7-9 psi cruise, dropping to no lower then 3 psi hard throttle, or dropping no more then 6-7 psi-if you have more pressure when cruising. Keep in mind you don't really want more then 14psi, because then injection pump internal pressure is too much and can cause certain issues(surging, over fueling, over/under advancing fuel delivery)


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Current Vehicles:1985 GMC K10(Daily) 1991 GMC K2500(Daily) 1975 Beetle(not running) 1985 Mercedes 300D(not running) 1952 M35    1967 M715(not running)
 1986 Chevy K30(under repair)

Offline fmxr47

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Re: So many lines! What do they all do?
« Reply #66 on: March 09, 2016, 06:38:45 PM »
Thought I had it fixed, but nope, died when I parked it luckily. Sucked my fuel line almost completely shut....


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Offline 1967KaiserM715

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Re: So many lines! What do they all do?
« Reply #67 on: March 09, 2016, 06:47:42 PM »
Is that the return? Have you replaced any of the returns on the injectors?


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 1986 Chevy K30(under repair)

Offline fmxr47

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Re: So many lines! What do they all do?
« Reply #68 on: March 09, 2016, 06:54:07 PM »
That is the supply from my spin on filter to the filter manager


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Offline fmxr47

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Re: So many lines! What do they all do?
« Reply #69 on: March 09, 2016, 06:54:46 PM »
Ran better than it ever has until I backed it into the parking spot in the barn


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Offline 1967KaiserM715

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Re: So many lines! What do they all do?
« Reply #70 on: March 09, 2016, 07:01:58 PM »
Curious, injection pump is sucking more then the fuel pump can, wonder if the fuel pump can't push through the filter, to much pressure and volume drop


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Current Vehicles:1985 GMC K10(Daily) 1991 GMC K2500(Daily) 1975 Beetle(not running) 1985 Mercedes 300D(not running) 1952 M35    1967 M715(not running)
 1986 Chevy K30(under repair)

Offline fmxr47

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Re: So many lines! What do they all do?
« Reply #71 on: March 09, 2016, 07:09:43 PM »
The spin on is only a 20 micron where the factory one is about 14, I wouldn't think that would be the case


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Offline fmxr47

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Re: So many lines! What do they all do?
« Reply #72 on: March 09, 2016, 07:10:45 PM »
I spec'd the pump to what the 6.5 calls for. 9-14 psi max I don't remember the gpm but I think it was in the 30's


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Offline 1967KaiserM715

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Re: So many lines! What do they all do?
« Reply #73 on: March 10, 2016, 07:22:52 AM »
how do you have the fuel pump wired in?
Current Vehicles:1985 GMC K10(Daily) 1991 GMC K2500(Daily) 1975 Beetle(not running) 1985 Mercedes 300D(not running) 1952 M35    1967 M715(not running)
 1986 Chevy K30(under repair)

Offline fmxr47

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So many lines! What do they all do?
« Reply #74 on: March 10, 2016, 08:55:08 AM »
The previous owner wired it to a toggle switch on the dash, wiring was crude, but when I replaced the pump I repaired/replaced anything questionable that I found, all heat shrink connectors. When the truck dies I still here the pump running and it's loud like its not moving any fuel


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