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Join Date: Dec 2003
Location: Severna Park, MD
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'70 914 1.7 won't start

Bought the '70 from a guy in Towson that runs a Muffler shop. He could start it with starter fluid but it didn't have enough fuel pressure to run. It needed tires and heat exchangers as well. So now it has the exhaust fixed, wheels and tires and fuel pump.

There is spark at the cyl., fuel at the cyl. and good compression but still won't start except on fluid. It is stock in configuration.

I can't say much more 'cause it is being repaired by the tech up there but he isn't familiar with early Bosch systems.

Any ideas?
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Old 01-12-2008, 10:35 AM
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FWIW he has tried partial and full pedal pressure w/o luck.
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2002 C2 Cab, 1982 sc, 1978 sc, 1976 s,1985.5 944, 2003 Honda Pilot, 2001 Volvo X/C 70, 1977 FIAT 124 spyder (an abarth someday), 2 1984 Vanagon Westis
1958 BugEye Sprite, 1960 BE Sprite, 1978 Yamaha XS11 1970 Honda 750 K0, 1982 BMW R65RT, 1997 Duc 916
Old 01-12-2008, 10:49 AM
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More info: it fires but won't catch.
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2002 C2 Cab, 1982 sc, 1978 sc, 1976 s,1985.5 944, 2003 Honda Pilot, 2001 Volvo X/C 70, 1977 FIAT 124 spyder (an abarth someday), 2 1984 Vanagon Westis
1958 BugEye Sprite, 1960 BE Sprite, 1978 Yamaha XS11 1970 Honda 750 K0, 1982 BMW R65RT, 1997 Duc 916
Old 01-12-2008, 11:51 AM
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You mentioned spark, fuel, and compression. Either something there is weak, or the timing is off.

Is the spark at the plugs strong, fat & blue? (vs. yellowish)

What is the fuel pressure?

Maybe pull the injector(s) out and put them in a jar to make sure they are spraying well. (Assuming still FI. Or does it have carbs?)

Do you smell gas?

Last edited by RandyLok; 01-12-2008 at 02:14 PM..
Old 01-12-2008, 02:10 PM
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I am simply giving info the mech gave me. He isn't familiar with d-jet but did check for the correct pressure on the pump.
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2002 C2 Cab, 1982 sc, 1978 sc, 1976 s,1985.5 944, 2003 Honda Pilot, 2001 Volvo X/C 70, 1977 FIAT 124 spyder (an abarth someday), 2 1984 Vanagon Westis
1958 BugEye Sprite, 1960 BE Sprite, 1978 Yamaha XS11 1970 Honda 750 K0, 1982 BMW R65RT, 1997 Duc 916
Old 01-12-2008, 04:45 PM
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Ok. Well I guess those questions are for the mech then. ;p

If the mech isn't familiar with Djet, I would be concerned.... He might recommend a carb conversion next.

Ask him what he says the correct pressure is. For Djet, it should be about 29lbs at the fuel rails (don't test at the pump).
Old 01-12-2008, 05:52 PM
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check FI trigger points in Distributor, and and Cyl Head Temp sender.
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Old 01-13-2008, 07:35 AM
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Ground strap at the back of the transmission, on the top. Make sure it's connected to the body.
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Old 01-13-2008, 08:39 AM
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Bad fuel maybe. Is the fuel new? fuel looses its pop after so long.
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Old 01-15-2008, 09:13 AM
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Fuel is new.
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Old 01-15-2008, 09:38 AM
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Here is a summary of just about everything that is currently known about D-jetronic EFI:
http://members.rennlist.com/pbanders

Sounds like you're getting no fuel, or too little fuel. Check to make sure all of the wires for the EFI (white wires) are plugged in. Make sure the fuel pump runs; it should "buzz" for about 1.5 seconds when you turn the key from "off" to "on". Verify that you have 29 PSI fuel pressure downstream of the pump (but upstream of the fuel pressure regulator).

--DD
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Old 01-15-2008, 04:31 PM
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Very cool. Thanks!
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2002 C2 Cab, 1982 sc, 1978 sc, 1976 s,1985.5 944, 2003 Honda Pilot, 2001 Volvo X/C 70, 1977 FIAT 124 spyder (an abarth someday), 2 1984 Vanagon Westis
1958 BugEye Sprite, 1960 BE Sprite, 1978 Yamaha XS11 1970 Honda 750 K0, 1982 BMW R65RT, 1997 Duc 916
Old 01-15-2008, 04:34 PM
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