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Registered
Join Date: Jun 2006
Posts: 4
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1970 MFI Problems
Need advice on determining my fuel injection pump is bad. Purchased the car which had been sitting for about 5 years, gas had gone bad, I drained the tank and fuel filter and put in a can of injection cleaner. Car runs but not well. When I removed the gas lines into the pump it appeared to have no gas coming out of it to the injector. I removed the side panel and the first of the 3 springs was moving but not the other two. Sprayed everything again with cleaner hoping it might work itself out. Any advice on the next step to free the pistons in the pump?
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06-15-2006, 01:52 PM
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Join Date: Jun 2006
Posts: 4
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igas is not coming out of 2 of the 6 lines thanks john
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06-15-2006, 02:36 PM
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Registered
Join Date: Dec 2003
Location: Arapahoe County, Colorado, USA
Posts: 9,032
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John,
Welcome to the Forum. You will find a lot of help here. Where are you located? How was the 911 stored for these five years? What is the condition of everything else? I would not start it again for quite a while. Keep spraying the pump and turn the engine clockwise at the crank by hand (wrench). I would add some oil to the cylinders with the sparkplugs out. Drain the engine sump and oil tank, install new oil and filter. Check the static ignition timing. I would then find TDC compression on #1 and remove the distributor. Have an auto-electric shop service it, install new points and run it in for quite some time. Reinstall the distributor timed as it was or at TDC. All the while keep spraying the pump from both the lower (oil) side and the upper (fuel) side. With the link off the MFI pump, does the throttle lever return to the stop without help? With the rubber cover off the front (of the car) end of the pump, use a 4 mm bolt to pull & push on the rack. Is it free? Does it return to the stop without help? Do not force anything! Please report what you find. Before you try and start it, consult here again, there is much more. Don’t try and start it until everything is free and the other bases are covered. You don’t want to damage it. “An ounce of prevention is worth $5000++ of cure.” Best, Grady
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06-15-2006, 04:06 PM
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Join Date: Jun 2006
Posts: 4
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Thanks Grady. The car was original from California and then spent a number of years in Colordo. After it was stored in Maine in a heated garage for the last 5-7 years. From what I was told, while in California the car was converted to a 930 Clone? Sloped front end, with Whale tail and a racing transmission installed. Overall condition is not too bad. Some service bubble rust but the car was put up complete and was started once or twice a year during its storage period. I will follow your advice and keep you informed in my progress. Thanks for replying to my questions.
John PS. What is the best product to use to spray the pumps? |
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06-16-2006, 03:02 AM
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