Why does my car sound like its cooking popcorn - Page 2 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

daryl337 · 10-09-2007, 02:21 PM

I have had a belt fly off before.. but that was due to a AC compressor clutch locking up and letting things fly.

ridin4jesus · 10-09-2007, 04:04 PM

ok so it wasnt a dead battery, i tried to just it but nothing. anyone think it is the starter or alternator?

projekt_s13 · 10-09-2007, 04:16 PM

Can you see any popcorn?? Check your throttle body for lodged popcorn, if thats good then check your muffler bearings.

daryl337 · 10-09-2007, 04:19 PM

To the op: check the starter using a screwdriver

To Projekt s13: Did you know that in the mid 70's GM actually called the little metal exhaust donut a muffler bearing? Straight from the manufacterers specs. :| lawl at that.

smoke coulda been from the blinker fluid getting on the manifold.. that can do it.

But seriously.. check the starter incase it has fried before buying parts.

projekt_s13 · 10-09-2007, 05:07 PM

haha, good to know.

I totally forgot about the blinker fluid, make sure its not leaking.

Quote:

Originally Posted by daryl337

To the op: check the starter using a screwdriver

To Projekt s13: Did you know that in the mid 70's GM actually called the little metal exhaust donut a muffler bearing? Straight from the manufacterers specs. :| lawl at that.

smoke coulda been from the blinker fluid getting on the manifold.. that can do it.

But seriously.. check the starter incase it has fried before buying parts.

Z33dori · 10-09-2007, 05:21 PM

you dropped a valve......

yeah i know because this just happened to me.

so now im on the looks for a SR swap........tho i barelt have any cash instead of throwing in another pos old Ka.

pr240sx · 10-09-2007, 07:32 PM

You dont need a new motor, you need a new DRIVER

Pics or video will help

MudRacer · 10-09-2007, 08:05 PM

HE probably heard a knocking sound from his DOHC KA. It almost sounds like popcorn but its actually a knocking sound.
Happened to my KA24DE 2 years ago. After a week of driving it just got worse. Took it to a mechanic, he said your engine is about to blow so dont drive it. Surely he was right. it sputtered oil everywhere and the engine blew and would never.......turn again.

if it wont turn, and its not your battery or your alternator, and the belts wont move. you need a new motor.

pics do help. video even better. a sound clip, genius.

ridin4jesus · 10-10-2007, 05:32 AM

so how do i check the starter with a screwdriver?

daryl337 · 10-10-2007, 09:07 AM

Looking at the starter solenoid, you should see a few posts.

1 is on the "big side" where the bendix resides, and the other is opposite of that, where your power is coming in from your battery..

Using your screw driver, ground yourself to the nearest water puddle and lick your fingers... now touch the two posts together with your fingers and let the fireworks fly!

JK. Use the screwdriver to touch the two together.. if you have a good batter any a good starter, your starter will crank over. If you just hear a nasty grinding noise, your flywheel is not turning for a number of reasons... so your motor might have seized or your ring gear/starter teeth might be messed up.

If you dont get jack squat... you have a bad starter.

10-09-2007, 02:21 PM	#31
daryl337 Zilvia Junkie Join Date: Aug 2005 Location: Pac NW Age: 39 Posts: 589 Trader Rating: (1) Feedback Score: 1 reviews	I have had a belt fly off before.. but that was due to a AC compressor clutch locking up and letting things fly. __________________ This is my clever and witty signature.

10-09-2007, 04:16 PM	#33
projekt_s13 Post Whore! Join Date: Jul 2005 Location: Chico/Pittsburg, CA Age: 39 Posts: 2,801 Trader Rating: (5) Rides Gallery: projekt_s13 Feedback Score: 5 reviews	Can you see any popcorn?? Check your throttle body for lodged popcorn, if thats good then check your muffler bearings. __________________

10-09-2007, 04:19 PM	#34
daryl337 Zilvia Junkie Join Date: Aug 2005 Location: Pac NW Age: 39 Posts: 589 Trader Rating: (1) Feedback Score: 1 reviews	To the op: check the starter using a screwdriver To Projekt s13: Did you know that in the mid 70's GM actually called the little metal exhaust donut a muffler bearing? Straight from the manufacterers specs. :\| lawl at that. smoke coulda been from the blinker fluid getting on the manifold.. that can do it. But seriously.. check the starter incase it has fried before buying parts. __________________ This is my clever and witty signature.

10-09-2007, 05:21 PM	#36
Z33dori Post Whore! Join Date: Dec 2006 Location: Riverview, FL Age: 36 Posts: 5,557 Trader Rating: (12) Feedback Score: 12 reviews	you dropped a valve...... yeah i know because this just happened to me. so now im on the looks for a SR swap........tho i barelt have any cash instead of throwing in another pos old Ka. __________________

10-10-2007, 09:07 AM	#40
daryl337 Zilvia Junkie Join Date: Aug 2005 Location: Pac NW Age: 39 Posts: 589 Trader Rating: (1) Feedback Score: 1 reviews	Looking at the starter solenoid, you should see a few posts. 1 is on the "big side" where the bendix resides, and the other is opposite of that, where your power is coming in from your battery.. Using your screw driver, ground yourself to the nearest water puddle and lick your fingers... now touch the two posts together with your fingers and let the fireworks fly! JK. Use the screwdriver to touch the two together.. if you have a good batter any a good starter, your starter will crank over. If you just hear a nasty grinding noise, your flywheel is not turning for a number of reasons... so your motor might have seized or your ring gear/starter teeth might be messed up. If you dont get jack squat... you have a bad starter. __________________ This is my clever and witty signature.

10-09-2007, 04:04 PM	#32
ridin4jesus Join Date: Aug 2007 Location: j-ville Posts: 30 Trader Rating: (0) Feedback Score: 0 reviews	ok so it wasnt a dead battery, i tried to just it but nothing. anyone think it is the starter or alternator?

10-09-2007, 07:32 PM	#37
pr240sx Zilvia Addict Join Date: Jan 2002 Posts: 627 Trader Rating: (0) Feedback Score: 0 reviews	You dont need a new motor, you need a new DRIVER Pics or video will help

10-09-2007, 08:05 PM	#38
MudRacer Zilvia Addict Join Date: Aug 2005 Location: SoCali-IE Posts: 645 Trader Rating: (6) Feedback Score: 6 reviews	HE probably heard a knocking sound from his DOHC KA. It almost sounds like popcorn but its actually a knocking sound. Happened to my KA24DE 2 years ago. After a week of driving it just got worse. Took it to a mechanic, he said your engine is about to blow so dont drive it. Surely he was right. it sputtered oil everywhere and the engine blew and would never.......turn again. if it wont turn, and its not your battery or your alternator, and the belts wont move. you need a new motor. pics do help. video even better. a sound clip, genius.

10-10-2007, 05:32 AM	#39
ridin4jesus Join Date: Aug 2007 Location: j-ville Posts: 30 Trader Rating: (0) Feedback Score: 0 reviews	so how do i check the starter with a screwdriver?