1997 850R rough idle after head rebuild

socompsp · Post by **socompsp** » 28 Jan 2014, 22:08

heres a novel thought, did you perhaps mistakenly 180 the rotor?..

Post by **erikv11** » 28 Jan 2014, 22:55

erikv11 wrote:What brands on the plugs-cap-rotor-wires?

These cars are very picky about ignition parts, especially plugs and wires ...

xHeart wrote:... What is the make of plugs, rotor, wires, and cap?

This question is relevant, we aren't just grasping at straws.

renzo86 · Post by **renzo86** » 28 Jan 2014, 23:39

Update: I went for a spin. The engine still has rough idle but it runs beautifully when I rev it. So smooth!!!! It's just the stupid rough idle. When I parked the car, I played with the throttle and there's a loud whistling coming from cylinder #5. That's just new. So there must be something going on with that cylinder.

renzo86 · Post by **renzo86** » 28 Jan 2014, 23:57

Here are 2 videos I recorded tonight:

Let me know what you think!

Post by **xHeart** » 29 Jan 2014, 04:56

Good job.
Now get some sleep.
Donate to MVS!

renzo86 · Post by **renzo86** » 29 Jan 2014, 10:02

I can't sleep!!! Gotta figure this out!! Lol don't you hear me screaming on that video? Lol J/K

socompsp · Post by **socompsp** » 29 Jan 2014, 13:26

are the threads in the spark plug well ok?

Post by **xHeart** » 29 Jan 2014, 13:52

socompsp wrote:are the threads in the spark plug well ok?

in addition, I think J/K is using junkyard wires and not telling us. Lol!

socompsp · Post by **socompsp** » 29 Jan 2014, 16:03

i would look into the spark plug in cyl 5 either being loose or the threads stripped. also, are all the plugs gaped correctly?

renzo86 · Post by **renzo86** » 29 Jan 2014, 16:30

The gap is preset. My name is not J/K. Lol. My name is Renzo. J/k=just kidding.

Well, spark plugs and cables are new. Rotor cap is new. I checked for spark on that cylinder by pulling the coil off the plug and listening to the spark going through. I'm going to check the injectors. Maybe they are dirty.

This project car is taking more time than I thought it would! Haha.

So far nobody has experienced anything like this. I guess I'm the lucky one!!

Keep up with the suggestions and comments! I take all of them into consideration. Even if they are funny! Lol. The last thing I need is being frustrated about this.

Thanks everybody