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 Starting up problem

 Created by: Thai168
Orig. Posting Date User Name Edit Date
Jun 21, 2020 11:32AM Dan Moffet  
Jun 21, 2020 08:31AM Kermy  
Jun 21, 2020 06:21AM onetim  
Jun 20, 2020 08:53PM Thai168 Edited: Jun 21, 2020 03:18AM 
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 Posted: Jun 21, 2020 11:32AM
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CA
Quote:
Originally Posted by Kermy
Its not clear to me what the problem is. Does the motor turn over?
"turn over" is one of those ambiguous phrases that confuse, especially with geographical differences or language. To some it means cranking. To others it means it the cylinder are firing.
He says it makes "BURR BURR BURR" noises. From that I'd understand it is cranking but not firing.

The two usual suspects of not firing are lack of spark and incorrect fuelling - it could be starving or flooded.

Thai168:
1, SPARK
When you take the spark plugs out to gap them correctly, smell them - do you smell raw fuel on them? If it is fairly strong, the engine may be flooded. If so, with the spark plugs out, hold the accelerator pedal all the way to the floor, don't use any choke and crank the engine 10-15 seconds. This will pump fresh air into the cylinders and help dry out excess fuel. Make sure the plugs are clean and dry before replacing them. When you connect the plug wires, make sure you have the order correct. Test for spark before connecting one of them by inserting a screwdriver into the end of the wire and holding it by the handle close to a bolt on the engine block to see if it sparks when the engine is cranked. If you have spark continue on to checking fuel. If not find out why there is no spark.

2. FUEL.
If your spark plugs were wet and/or smelly, the engine was probably flooded. When you get the cylinders dry or if there was no strong smell, try starting the engine with ether starting fluid if you have it. If not, put a small amount of fuel in a squeeze bottle and do the test onetim suggests. Do not use choke. The squirt of fuel will be enough to at least make the engine cough. DO NOT try to pour in fuel from an open can or cup - it will probably be too much and if the engine backfires through the carb, it could set the can on fire.

If it doesn't cough or sputter, go back and solve the spark problem. If it does cough, try to coax it to life with a partially open throttle and your squirt bottle. If it tries to run but falters, add a little bit of choke at a time to see if it runs better or worse. If it runs a little better, you are not getting enough fuel. If it runs worse or stalls, you are getting too much fuel.


.

"Hang on a minute lads....I've got a great idea."

 Posted: Jun 21, 2020 08:31AM
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Its not clear to me what the problem is. Does the motor turn over?

 Posted: Jun 21, 2020 06:21AM
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First set the plug gap back to .032”  Next try a squirt of fuel straight into the carburetor then crank the engine, if it starts and stalls you can be sure it’s a fuel problem. It is starts and you can keep it running probably a carburetor problem, starts and stalls would be a fuel delivery problem. Good luck

 Posted: Jun 20, 2020 08:53PM
 Edited:  Jun 21, 2020 03:18AM
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Hi all, It seem like a good day to drive, I've finshed changing the radiator, timing cover with a breather for an A- 1275 67' Cooper S and took for a test drive three week ago and ran better and cooler which is great so today I try to start it up, It just wouldn't fire up, it had spark so I change new plug BPR6ES and set it to .032, .32, .50, so when I turn over with the choke, it sound like BURR BURR BURR . What am I doing wrong here or need to do? I hope someone can solve this, much thank.

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