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-   -   engine dies when clutch is released (https://www.miataturbo.net/engine-performance-56/engine-dies-when-clutch-released-50782/)

MongER 08-18-2010 11:17 PM

engine dies when clutch is released
 
I have a 1992 turbo td04h miata 1.6.

I swapped in a 1990 miata motor cause the other one was bad.

everything seems to be bolted on correctly and no leaks.

i just started it today and the engine ran a bit weird. Kind of like a lawn mower. The distributer is still lose for adjustments. The problem is...

I start the miata, slowly let go of the clutch, then the engine dies... I am stumped.. What could be the problem?

rider384 08-18-2010 11:42 PM

Miatas have distributors? I don't think you have a miata engine, bro.

MongER 08-19-2010 12:01 AM

distributors
 
sorry, I meant the miata crank position senser. The cylinder shaped deal attached to the back side of the intake cam rod..

http://www.carpartswholesale.com/ima.../A13135438.jpg

magnamx-5 08-19-2010 12:22 AM

is the car in gear?

FRT_Fun 08-19-2010 12:24 AM


Originally Posted by magnamx-5 (Post 618481)
is the car in gear?

:facepalm:

Is the timing good?

MongER 08-19-2010 12:29 AM

neutral
 
The car is not in gear.

We pushed the car unto the driveway. I noticed that the clutch and brake was really lose and grabbed some dot3 and tried bleeding them in for about 10 minutes.

Then i started the car up in neutral. With my foot down on the clutch pedal, it runs ok. (sound a bit like a lawn mower) As soon as the clutch becomes completely released while in neutral, the car dies.. (!?)

MongER 08-19-2010 12:31 AM


Originally Posted by FRT_Fun (Post 618483)
:facepalm:

Is the timing good?

i set it to (10) top dead center, intake cam and exhaust cam straight up.

As far as timing.. could that cause the engine to just stall when the clutch is fully released in neutral?

FRT_Fun 08-19-2010 12:41 AM

I figured the car was in gear and you were trying to go forward...

So it doesn't try and move forward when you let out the clutch?

What if you give it a bit of gas as you let out the clutch.. still die?

Could the transmission be fux0red... binding of some sort?


Honestly not really sure, just figured I'd throw some random stuff out there.

curly 08-19-2010 12:41 AM


Originally Posted by MongER (Post 618485)
i set it to (10) top dead center, intake cam and exhaust cam straight up.

As far as timing.. could that cause the engine to just stall when the clutch is fully released in neutral?

Eh? That's not set properly. We'll get to the clutch issue after the lawn mower issue.

fooger03 08-19-2010 08:21 AM

lawn mower issue: figure out what exhaust connection isn't tight/secure. If it's not obvious, I would start by making sure the coolant hard line from the heater core is bolted over the manifold at the #3 runner instead of under it.

E-NA6CE 08-19-2010 09:48 AM

I don't think he's talking about a leak. From what I read it's not running smooth. :dontknow:

This sounds like a bad case of retarded timing or fucked ignition.

rider384 08-19-2010 09:55 AM

Or running on 3 cylinders.

E-NA6CE 08-19-2010 10:02 AM


Originally Posted by rider384 (Post 618573)
Or running on 3 cylinders.

Which would be teh confuckled ignition. Can we get pictures of your timing setup?

MongER 08-19-2010 11:54 AM

I retightened the bolts on the exhaust and adjusted the crank position sensor. It seems to sound great now.

Now I cant seem to figure out why the car dies when the clutch is released. (!?)

Wow, the engine runs so rich. When i pump a little gas, the engine dies all together... as if i flooded the engine. (400cc injecters)

Is there a way to manually tune this link engine management right from its viewing screen? I dont have any of the applications and linkages to it. (never tuned it before)

E-NA6CE 08-19-2010 12:02 PM

Even still, your car shouldn't be dumping that much fuel into your engine. What other fuel modification have you made (rail/pump, blah blah)?

MongER 08-19-2010 12:13 PM

random pix
 
here are some random pictures of what im doing.

running too rich

http://c3.ac-images.myspacecdn.com/i...119c9e7e36.jpg

link engine management setup

http://c2.ac-images.myspacecdn.com/i...dd50abed71.jpg

stick on the clutch while i work

http://c1.ac-images.myspacecdn.com/i...baa2bce978.jpg

turbo setup while engine is running

http://c1.ac-images.myspacecdn.com/i...0d42f0d7ac.jpg

E-NA6CE 08-19-2010 12:26 PM

I can't see any of those pictures, ha ha. It just comes up with an error message.

MongER 08-19-2010 12:32 PM

fuel rail setup
 
fuel rail setup is..

http://c3.ac-images.myspacecdn.com/i...5d93ae9ba2.jpg

MongER 08-19-2010 12:38 PM

moving circles
 

Originally Posted by E-NA6CE (Post 618648)
I can't see any of those pictures, ha ha. It just comes up with an error message.

everytime i read your responses.. i swear those circles are moving.. or is it just me.. XD

E-NA6CE 08-19-2010 12:40 PM

Ha ha, it's an illusion. And am I blind or can I not see a FPR anywhere?


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