Wont idle in drive

Posted By oldcarmark 15 Years Ago

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Wont idle in drive

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oldcarmark	Posted 15 Years Ago
Supercharged Group: Forum Members Last Active: Last Month Posts: 3.7K, Visits: 32.6K	I finally got to take my rebuild out for a drive today.Runs great.Starts quick and has lots of power.Timing is set at 12BTC.Idles great in neutral.I cant get it to idle in drive.Will almost stall.Vacuum is good at 18 and I dont think there is a vacuum leak.Holley 390 which I used last summer and worked fine.I have blown out the idle passsgaes and bleed ports.If this is a needle and seat problem why would it run fine except in drive idling?Its a stock type camshaft.Any sugestions on what to check?
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Wont idle in drive By oldcarmark ( 15 Years Ago )

Mark, two thoughts. Idle is too low so it fine in neutral but too low... By YellowWing ( 15 Years Ago )

Hi Mike! I have reset both.I am thinking now maybe the secondarys are... By oldcarmark ( 15 Years Ago )

OK the secondaries are closed.Any other suggestions? By oldcarmark ( 15 Years Ago )

Pull the float bowl and metering block to see if power valve is... By John F ( 15 Years Ago )

Also go ahead and blow out the air bleeds,they might have some dirt in... By Nathan Soukup ( 15 Years Ago )

Still no solution to my problem.I have blown out the passages,adjusted... By oldcarmark ( 15 Years Ago )

Mark,back your timing off a little and try it.I know the general... By PWH42 ( 15 Years Ago )

Mark, with engine idling check the temperature of each exhaust port if... By YellowWing ( 15 Years Ago )

Thanks Mike and Paul.Good suggestions.Perhaps I have tunnel vision... By oldcarmark ( 15 Years Ago )

If you have the distributor hooked to ported vacuum, the idle speed... By pegleg ( 15 Years Ago )

Try the check valve on the power brake booster,maybe there is a leak? By Nathan Soukup ( 15 Years Ago )

How old is the fuel? Does the exhaust smell ‘fuel rich’ at... By Ted ( 15 Years Ago )

Hello Ted! Thanks for having a look at my problem.I spent a couple of... By oldcarmark ( 15 Years Ago )

Assuming this problem is not related to the torque converter, the... By Ted ( 15 Years Ago )

Hi Ted I did a little more today.Checked fuel levels.I set them to... By oldcarmark ( 15 Years Ago )

Did some more today.Used a propane torch to check for... By oldcarmark ( 15 Years Ago )

I just reread your posts and it looks as if the car runs fine in drive... By Daniel Jessup ( 15 Years Ago )

Mark.........Does it die instantly as if you had turned off the key or... By PWH42 ( 15 Years Ago )

[quote][b]oldcarmark (4/28/2010)[/b][hr]Did some more today.Used a... By aussiebill ( 15 Years Ago )

Thanks for the suggestions everyone.Something that has been suggested... By oldcarmark ( 15 Years Ago )

Faulty torque converter in the transmission ? By Hollow Head ( 15 Years Ago )

Mark . There’s a 1956 Ford with a 312 and Ford-O-Matic in my... By Ted ( 15 Years Ago )

Thank you Ted! Sounds like the same symptoms I am having.I am going to... By oldcarmark ( 15 Years Ago )

Low compression would cause these symtoms, you say its a fresh... By Y block Billy ( 15 Years Ago )

Sorry for a long winded spiel however here is some ideas.

I... By marvh ( 15 Years Ago )

Thanks Marvh.I will look into a couple of your suggestions.Regapping... By oldcarmark ( 15 Years Ago )

Mark:
I used a Rollmaster chain which is index-able. I ended up... By marvh ( 15 Years Ago )

Well, I've been following this thread from the beginning and have seen... By Fordy Guy ( 15 Years Ago )

Good suggestion BUT the Fordomatic in 51-56 and later I think maybe to... By oldcarmark ( 15 Years Ago )

Wooops, now I know why it was never brought up, sorry. By Fordy Guy ( 15 Years Ago )

No need to apologize.On any vehicle that does have a vacuum mod valve... By oldcarmark ( 15 Years Ago )

This is just a wild guess, but I guess you have tried everything... By crenwelge ( 15 Years Ago )

Hello Kenneth! I have the other heater type with the 4 hoses and the... By oldcarmark ( 15 Years Ago )

I have been following this as well. My 57 bird, with an edelbrock... By Rods ( 15 Years Ago )

I talked to 2 tranny guys familiar with the Fordo and both said the... By oldcarmark ( 15 Years Ago )

Mark, could the engine be idling on 7 or even 6 cylinders? If so you... By YellowWing ( 15 Years Ago )

Hi Mike! I did try that.I did notice a real difference in most... By oldcarmark ( 15 Years Ago )

[quote][b]oldcarmark (5/18/2010)[/b][hr]Hi Mike! I did try that.I did... By aussiebill ( 15 Years Ago )

I'll welcome a correction by Mark if I mis-state this but what seens... By GREENBIRD56 ( 15 Years Ago )

I think you pretty well got it right Steve.It is definetly better than... By oldcarmark ( 15 Years Ago )

[quote][b]oldcarmark (5/18/2010)[/b][hr].....In drive the vacuum... By Ted ( 15 Years Ago )

Hello Ted. I was reading an article about timing and carb... By oldcarmark ( 15 Years Ago )

Here is the link. Mike... By YellowWing ( 15 Years Ago )

Thank you Mike!Its well worth reading I think. By oldcarmark ( 15 Years Ago )

As I have been following your posts and have been trying to do the... By Rods ( 15 Years Ago )

You should find out what they did to it at the shop you took it... By oldcarmark ( 15 Years Ago )

6 degrees btc is toooooo low, move it up to at least 12 degrees and... By speedpro56 ( 15 Years Ago )

Too much GM junk in there don't you think????? You guys are going to... By GREENBIRD56 ( 15 Years Ago )

Steve! If you ignore the fact that its GM the theory this guy puts... By oldcarmark ( 15 Years Ago )

I'm pulling your chain Mark - any ideas I can adopt to make my outfit... By GREENBIRD56 ( 15 Years Ago )

What is your timing when at idle without the vacuum on? By Rods ( 15 Years Ago )

I am setting mine at 12 BTDC and working with it from there.The... By oldcarmark ( 15 Years Ago )

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