Something weird going on

[jhaag]

No. Your issue is 1 of 2 things, vacuum leak, or throttle blades open too far. Too much air is getting into the motor. completely close both front and rear throttle blades. car should not idle at all, unless you have a vacuum leak, or holes drilled in your throttle blades.

[cudabob496]

No. Your issue is 1 of 2 things, vacuum leak, or throttle blades open too far. Too much air is getting into the motor. completely close both front and rear throttle blades. car should not idle at all, unless you have a vacuum leak, or holes drilled in your throttle blades.

ya, had the holes for the last 4 yrs. OK, intake with new gaskets going in!

[734406pk]

No. Your issue is 1 of 2 things, vacuum leak, or throttle blades open too far. Too much air is getting into the motor. completely close both front and rear throttle blades. car should not idle at all, unless you have a vacuum leak, or holes drilled in your throttle blades.

  I think you have a vacuum leak Bob. Clogged idle air bleeds will make for a rich idle condition, not one of your symptoms. You appear to be lean at idle IMO. Plug all the vacuum lines to PCV, power brake booster etc to test off-engine components. IF there is no change, the intake manifold may have a leak. A smoke machine can be used to test. It is simple to make one, check youtube. I hope it's an easy fix.

[cudabob496]

ya, no power brakes
pcv line has been off before, and just high idles aroud 2000 rpm
this thing will not run below 1000 rpm. sits there and gags and chokes
at around 200 rpm.  Weird.

[734406pk]

Consider this smoke machine, it really works! It's easy to make or you can buy one from the address listed (kustomsmoke@yahoo.com):
https://www.youtube.com/watch?v=PnU-SY6egr4
 

[cudabob496]

thanks! will keep in mind!
still putting things back together.
Port matching gaskets is taking a while.

[HP_Cuda]

That guy is a big kooky but it does seem quite handy!!!

[cudabob496]

That guy is a big kooky but it does seem quite handy!!!

ya, he is different

been around a while

[734406pk]

Here is another example of using a smoke machine to find vacuum leaks etc. On a carbureted engine, i take off the carb and make a blockoff plate using the base gasket as a template (duct tape works too). Connect the smoke discharge hose to a vacuum fitting and look for leaks. You can loosen the rocker shafts to keep all the valves closed for pinpointing say intake ports leaking into the crankcase (OEM steel valley tray/ intake gasket), intake valve leakage, worn valve guides. The uses are endless. A word of caution:: If you use a smoke machine to diagnose an EVAP/fuel leak, use an inert gas like Argon or CO2 instead of compressed air, and test OUTSIDE to be safe. 

https://www.youtube.com/watch?v=FfiQ7qWiG-M

[Cudakiller70]

That's smart and the dye leaves evidence to find it later. Haven't seen this before thanks!

[js29no]

nitrogen is the gas to use as per the owners manual.  ( snap-on ) 

[73440]

ya, he is different

been around a while

I have watched some of his other videos and that's him allright.

[cudabob496]

I have watched some of his other videos and that's him allright.

he has some good advice, if you can get past the sometimes irritating showmanship.

[734406pk]

nitrogen is the gas to use as per the owners manual.  ( snap-on )

Yes, Nitrogen is another INERT gas that can be used!

[734406pk]

That's smart and the dye leaves evidence to find it later. Haven't seen this before thanks!

I hope this info helps to pinpoint any leak issues, the UV trace dye is an added bonus too!