Old wenty decides not to start ..first time in 15 years

Jeevess · Jan 19th, 2022, 09:26

dear all

She is turning over..fuel pump is working but she just wont fire up. She was the most reliable car in the world.Been all over Europe. im living in Bulgaria so the ease of a mechanic is not as in uk...
could you give me some obvious starting points please...i know there are probably lots but any advice is much appreciated...

thanks

TonyS9 · Jan 19th, 2022, 09:52

How do you know the fuel pump is working during cranking?

What is the rpm needle doing during a long run of the starter (say 5s)?

grumpydad · Jan 19th, 2022, 23:47

HI
Hope this helps

- STEP 1: Check for spark! Safest for you and your car is a timing light, but without one, unplug ignition wire going from the coil to the distributor. Ground it very close to a strut tower stud like in the picture above. Crank the engine. Do you see spark? If you see a consistent spark, go to the next step and do the starting fluid test. If no spark, inspect Crankshaft Sensor/Hall Sensor and do ignition diagnosis.

-STEP 2: STARTING FLUID! This will confirm that ignition, timing and mechanicals of the engine are good with one fast and easy test:

TO USE STARTING FLUID: Unplug the fuel injectors, pull the spark plugs and clean them of any fuel, crank the engine and air out the cylinders. (This will clear out any flooding of the cylinders from trying to start the engine.) Then reinstall the spark plugs, LEAVE INJECTORS UNPLUGGED, disconnect intake hose at throttle body, open throttle body, give it two long sprays, crank. Start? If so, you have a fuel system issue. YOUTUBE VIDEO ("test fire without any fuel lines even installed in the car yet.)

If your car runs on starting fluid, the fuel system is suspect. Check for 12v at the fuel pumps/fuel pump fuse with the engine cranking. Check fuel pressure. A gauge that will bolt onto the fuel filter outlet (12mm banjo) is available from auto parts stores for a refundable deposit.

-Nothing wrong with doing a compression test!

-Check belt timing. The cam, crank, and aux shaft (on 240) all need to be aligned correctly.

-Check ignition timing. Approx 12 degrees BTDC.

grumpydad · Jan 19th, 2022, 23:49

HI

link to YouTube vid

https://www.youtube.com/watch?v=vzQxpwOHb0c

Rversteeg · Jan 20th, 2022, 12:39

http://www.stepbystepvolvo.com/Resou...20No-Start.pdf

Jan 19th, 2022, 09:26	#1
Jeevess New Member Last Online: Nov 18th, 2023 14:52 Join Date: Jun 2017 Location: Market Harborough	Old wenty decides not to start ..first time in 15 years dear all She is turning over..fuel pump is working but she just wont fire up. She was the most reliable car in the world.Been all over Europe. im living in Bulgaria so the ease of a mechanic is not as in uk... could you give me some obvious starting points please...i know there are probably lots but any advice is much appreciated... thanks

Jan 20th, 2022, 12:39	#5
Rversteeg Master Member Last Online: Today 13:57 Join Date: Feb 2006 Location: Amersfoort (NL)	Helpful link http://www.stepbystepvolvo.com/Resou...20No-Start.pdf

Jan 19th, 2022, 09:52	#2
TonyS9 Premier Member Last Online: Apr 9th, 2024 21:44 Join Date: Jul 2009 Location: Holywood	How do you know the fuel pump is working during cranking? What is the rpm needle doing during a long run of the starter (say 5s)?

Jan 19th, 2022, 23:47	#3
grumpydad Senior Member Last Online: Yesterday 20:23 Join Date: Dec 2015 Location: eastsussex	HI Hope this helps - STEP 1: Check for spark! Safest for you and your car is a timing light, but without one, unplug ignition wire going from the coil to the distributor. Ground it very close to a strut tower stud like in the picture above. Crank the engine. Do you see spark? If you see a consistent spark, go to the next step and do the starting fluid test. If no spark, inspect Crankshaft Sensor/Hall Sensor and do ignition diagnosis. -STEP 2: STARTING FLUID! This will confirm that ignition, timing and mechanicals of the engine are good with one fast and easy test: TO USE STARTING FLUID: Unplug the fuel injectors, pull the spark plugs and clean them of any fuel, crank the engine and air out the cylinders. (This will clear out any flooding of the cylinders from trying to start the engine.) Then reinstall the spark plugs, LEAVE INJECTORS UNPLUGGED, disconnect intake hose at throttle body, open throttle body, give it two long sprays, crank. Start? If so, you have a fuel system issue. YOUTUBE VIDEO ("test fire without any fuel lines even installed in the car yet.) If your car runs on starting fluid, the fuel system is suspect. Check for 12v at the fuel pumps/fuel pump fuse with the engine cranking. Check fuel pressure. A gauge that will bolt onto the fuel filter outlet (12mm banjo) is available from auto parts stores for a refundable deposit. -Nothing wrong with doing a compression test! -Check belt timing. The cam, crank, and aux shaft (on 240) all need to be aligned correctly. -Check ignition timing. Approx 12 degrees BTDC.

Jan 19th, 2022, 23:49	#4
grumpydad Senior Member Last Online: Yesterday 20:23 Join Date: Dec 2015 Location: eastsussex	HI link to YouTube vid https://www.youtube.com/watch?v=vzQxpwOHb0c

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