RPM dropping to low when clutch is pushed in

[Tre3zy]

so just recently swap my built motor in the galant... got it idling good about 1000rpm my new problem now is that when i push the clutch in it drops down to 500 and holds there... sometimes the car will die... what could be causing the problem??? i checked to see if there's any crank play by prying the crack one way and the flywheel another and there is none... can anyone give me pointers on what to check next???

car spec is:

ACT 2600
6 puck sprung clutch
fidanza flywheel

throttle body has the ISC and FIAV block off...

thnx guys

-triz

 

[MellowVR4]

maybe you didnt torque them down properly. like pressure plate

 

[turbowop]

So it does this if you push the clutch in while idling, or when coming to a stop when driving?

 

[Defiant]

is your BOV recirculated?

 

[Tre3zy]

when idling...

 

[mitsuturbo]

You really should use a dial indicator to check clearance on the crank in order to make sure it's neither too loose or too tight.

My thoughts immediately go to crankwalk, as i'm sure is the case with many other readers here.

 

[Tre3zy]

Yea thats what i though so too but it use to do that in my old motor as well ever since i put the findanza flywheel... so maybe that could be it???

 

[EMX5636]

Do you have DSMLink? I read about an issue like this if you have the clutch-cut wire connected, but don't have the "enable clutch cut" selected in DSM link.

 

[turbofonz]

Check the 4 trans-block bolts. DO you hear any noise when pushing the clutch down?

 

[Tre3zy]

i disconnected the switches for the clutch and still didnt do anything

and no noise coming from it...

a friend is coming over on saturday night with a crank dial indicator to see if the trust bearing is wearing premature

 

[EMX5636]

Sorry the switch didn't fix it for you. I am trying to think of anything besides crankwalk. I'll wait for the update with the dial-indicator.

 

[Tre3zy]

thnx... yea im praying that it isnt crankwalk... i mean ive only put 20 miles on the new motor... not really looking forward on pulling it out again LOL

 

[turbofonz]

Did you check the trans bolts like I said?

 

[Tre3zy]

yes i did... not noise coming from it and all the trans bolt is properly tighten down...

 

[turbofonz]

Alright. I've seen a few cars where the lower 2 are backed out/ missing and when you push the clutch it would make the trans seperate from the block... and make it drop RPM's.

 

[Tre3zy]

Cool thnx for that info

 

[Tre3zy]

so update on the car... just did the test with a dial indicator and it came out to 0.0060... what do you guys think??? its within spec but i will definately keep a close eye on this one... the motor only has 20 miles... it could be a different reading after 1000 miles... but i hope that it wouldnt...