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Registered User
Join Date: Apr 2017
Location: Western NC
Posts: 94
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1974 911 Hot Rod Build
Hi, for as long as I can remember, I've always wanted a 911. A couple of weeks ago I went to see a '74. She needed work, but looked to be in good shape and the price was right so I pulled the trigger and brought her home.
    The story is the car's been sitting for about 20 years in a storage building. New battery, fresh gas, and some Mystery oil down the cylinders and she started right up. The plan is to build a light weight hot rod and drive the crap out of it. The car already has some goodies, Weber carbureted '79 3.0 with upgraded chain tentioners, SC oil cooler, I'm finding more about it I dig into it. 
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05-30-2018, 09:13 AM
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Registered
Join Date: Jul 2005
Location: Atlanta
Posts: 1,241
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Great stuff and congrats! Super fun hobby and great community.
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No physical quantity completely explains its own existence |
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05-30-2018, 09:30 AM
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Registered User
Join Date: Apr 2017
Location: Western NC
Posts: 94
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So I'd like to tackle the fuel system first. The fuel tank was surprisingly clean, but there are some leaks by the fuel filter and the car still has the nylon fuel lines that need to be replaced.
The fuel pump is a 0580254985, running into a Bosch 0.450.905.016 fuel filter, running into what seems to be a splitter of some kind.   I can't find any info on this thing. It's and Earls part, but no part number or markings that help ID it. Anyone have any info on this? I thought it might have been a pressure regulator, but there no screws or any signs that it can be adjusted in any way. |
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05-30-2018, 09:41 AM
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Registered
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Looks to be a distribution block with a gauge, using generic Aeroquip style fittings. Summit or Jegs would have replacement parts.
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-Tony Instagram: @Pablo_the_Porsche | @RuchlosRallye AchtungKraft #002 |
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05-30-2018, 09:56 AM
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Registered User
Join Date: Apr 2017
Location: Western NC
Posts: 94
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Shoooo32, thats what I figured.
I can't find a fuel pressure regulator anywhere on this thing. Not under the front belly pan by the rack, not by the fuel pump in the rear, and not in the engine bay. I've traced the fuel lines front to back, no sign of a FPR. I'm having a hard time believing they ran the car with a CIS pump, carbs, and no FPR. |
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05-30-2018, 10:43 AM
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Registered
Join Date: Oct 2004
Location: San Diego
Posts: 4,870
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You should replace it with the PMO pressure regulator.
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05-30-2018, 12:22 PM
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Registered
Join Date: Jan 2007
Posts: 2,370
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+1 on PMO regulator.
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05-30-2018, 12:57 PM
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Registered
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absolutely love that color.
nice score.
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Jeremy Brooks AKA VWLOOSENUTS ***My cars are built to meet my approval, not yours!! My money, my cars, my happiness. |
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05-30-2018, 01:14 PM
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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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What fuel pressure are you getting when it is running?
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Gordon ___________________________________ '71 911 Coupe 3,0L outlawed #56 PCA Redwood Region, GGR, NASA, Speed SF Trackrash's Garage :: My Garage |
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05-30-2018, 01:28 PM
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Registered User
Join Date: Apr 2017
Location: Western NC
Posts: 94
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Thanks guys.
Trackrash, the gauge is dead, so I have no clue what it was doing. At this point, I'm just going to order new lines, rebuild the carbs, PMO regulator and see what happens. |
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05-30-2018, 03:06 PM
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Registered
Join Date: Jul 2002
Location: Atlanta
Posts: 7,125
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I bet that has a regulator in it. I see markings on the side. I would replace the gauge and see what pressure you have . If its below 5 the carbs will be happy IIRC.
It looks to be a high quality piece. I dont think you need to replace the braided lines? Do they go bad?
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erik.lombard@gmail.com 1994 Lotus Esprit S4 - interesting! 84 lime green back date (LWB 911R) SOLD  RSR look hot rod, based on 75' SOLD 73 911t 3.0SC Hot rod Gulf Blue - Sold. |
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05-30-2018, 06:33 PM
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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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Agree, it is worth checking the pressure before continuing. That could be a regulator.
The braided lines don't last for ever. I had to replace the Aeroquip lines on my car a while back. Good news is all of those hose ends $$$ are reusable.
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Gordon ___________________________________ '71 911 Coupe 3,0L outlawed #56 PCA Redwood Region, GGR, NASA, Speed SF Trackrash's Garage :: My Garage |
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05-30-2018, 06:49 PM
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Registered
Join Date: Aug 2012
Posts: 470
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Great color and score with that engine.
Welcome to the middie madness 
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Have I disabled cookies? Well I’ve eaten the heads off a few gingerbread men... |
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05-31-2018, 06:51 PM
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Registered
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This will be fun to watch. Subscribed. Take your time, take lots of pics for us. Good luck.
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Ken '69 911E |
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06-01-2018, 05:52 AM
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dwight45
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A Carrera oil cooler will be better than an SC trombone. Guaranteed.
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06-01-2018, 10:09 AM
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scumbag
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love that color and the RSs. looking forward to where you take it.
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http://forums.pelicanparts.com/porsche-911-technical-forum/989493-my-low-budget-dream-car-build.html https://forums.pelicanparts.com/porsche-cars-sale/1180319-fs-1979-widebody-lightweight-coupe-hotrod.html AchtungKraft #009 - IG: @doktor_b |
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06-01-2018, 10:58 AM
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Registered User
Join Date: Apr 2017
Location: Western NC
Posts: 94
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Dwight, I found this fancy thing behind the front bumper
  So not a lot of great news. The valves were in bad need of adjustment, so I did that. Went ahead and ordered the PMO regulator and some stuff to rebuild the carbs, got some new oil and filter. Pulled off the carbs to rebuild them. Took the first one apart. it went as expected.  A couple things were tighter than they should have been, and it was dirty, but not a big deal. Took the second one apart and noticed everything was way looser than the first carb. The diaphragms on the accelerator pump looked new, and the base spring was missing. Strange. Took the lid off, and pretty much crapped my pants. Brace yourselves.    First picture, the air corrector and emulsion tube are missing. Second, looks to be a tiny screw or something broken off in the corrector? Third, someone ran a freaking drill down the corrector, the emulsion tube is missing here again, and there seems to be something lodged in its place. I let the carbs soak for a couple of days. Tired using an EZ Out on the remaining brass that got drilled out but it would just slip. Then I noticed the drill got into the casting. That lip where the emulsion tube sits is pretty much gone.  So I'm guessing this thing is dead, which really sucks. Any opinions? Is it salvageable? New PMO carbs? Fuel injection? Find whoever did this and punch them in the face? |
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06-09-2018, 04:18 PM
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Registered
Join Date: Jul 2002
Location: Atlanta
Posts: 7,125
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I bet that guy that specializes in 911 carbs can help. maybe he has a carb body and/or can salvage what you have. I think his name is Paul, sorry I cant remember the company name.
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erik.lombard@gmail.com 1994 Lotus Esprit S4 - interesting! 84 lime green back date (LWB 911R) SOLD RSR look hot rod, based on 75' SOLD 73 911t 3.0SC Hot rod Gulf Blue - Sold. |
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06-09-2018, 04:27 PM
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Registered
Join Date: Jan 2007
Posts: 2,370
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His Name is Paul Abbott and his business is Performance Oriented and he is a great guy. Look him up but he often has a waiting list.
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06-09-2018, 04:30 PM
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Registered User
Join Date: Apr 2017
Location: Western NC
Posts: 94
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Just sent him an email. His website says he stopped taking new projects in April.
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06-09-2018, 05:51 PM
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Pablo
1994 Porsche 968
My Garage
1971 Porsche 911
Baja Bug
The Red Machine
Porsche
2015 Porsche 911SC
Opus
2015 
Opus
Opus
Opus
1979 Porsche ROW 911 SC
