Thread: update

Tweet

kitz.. you kinda got me i don't know what you are saying sorry

Originally Posted by big_block

if i cut the rpm down to 800 it won't idel not at all and the vac reading at 800 is about 1500 or so

if it will idle at 1100 in park, but not 800 in park kinda says it in the tune up and not the trans. get it to idle in park at 900 rpm's and you'll have the problem fixed. i think its a vac. leak or a carb. problem, but i don't know what to tell you to do. do you know how to check for a vac leak?

yup it does sound like a vaccuum problem if it wont idle around 800.... might be idle mixture adjustments, those can change vaccuum quite a bit... and at 1100 those adjustments aren't actually being used because you're not running on an idle circuit

no no it will idle at 600 in drive or maybe 500 in drive but it is at 600 or 500 in park it won't in drive see what i am saying it drops about 500 to 600 when shifted

ok got it 1 other thing does it matter were the pcv goes ?? on the carb ot on the manifold semms like the power breaks works best comomg from the bottom of carb not the manifold ....... but i will try the adjustment thanks for helping

Originally Posted by big_block

no no it will idle at 600 in drive or maybe 500 in drive but it is at 600 or 500 in park it won't in drive see what i am saying it drops about 500 to 600 when shifted

if i was you and had a vac. problem i'd block off all vac. lines at the carb. and intake until i got the motor to run right. you don't need them to make the motor run.

ok all i need is power breaks and one that goes to the tranny i guess do i need that for now ?

Originally Posted by big_block

ok all i need is power breaks and one that goes to the tranny i guess do i need that for now ?

not to tune it in park. blocking the lines off is a way to eliminate a possible vac. leak, at the trans or brake booster.

ok heres what i got
power breaks hooked up to bottom carb
the tranny hooked up to intake manifold and no pcv
and at WOT no 4 bbl i used the paper clip
and the tranny shiftes about 4000 at WOT
and 800 rpm in park and 18lb vac
and 500 rpm in drive and 10lb vac


i have some pics also if you want to look

hey, big blocks son here...



this is my vaccum setup. got a line coming form the booster to the carb (look under the vaccum diaphram) and a line from the tranny hookup to the top of the manifold inlet.

Originally Posted by big_block

ok heres what i got
power breaks hooked up to bottom carb
the tranny hooked up to intake manifold and no pcv
and at WOT no 4 bbl i used the paper clip
and the tranny shiftes about 4000 at WOT
and 800 rpm in park and 18lb vac
and 500 rpm in drive and 10lb vac


i have some pics also if you want to look

18", thats sounds good,10"@500 rpm's dont mean nothing, don't know what you're talking about WOT and paper clip. whats the dif.? you said yesterday it wouldn't idle at 600 rpms. also the vac comes in inches. so it would be 18 " of vac. what kind of trans.? show the pic. is it running any better?

WOT is wide open throttle
its a c4 auto ,,i said if i have it at 600 rpm in park it doesn't ,, its 800 in park

the paper clip thing is what some told me how to check is the 4 bbl is opening you can see in the pic from the link how we have the vac hoses hooked up

Originally Posted by big_block

WOT is wide open throttle
its a c4 auto ,,i said if i have it at 600 rpm in park it doesn't ,, its 800 in park

the paper clip thing is what some told me how to check is the 4 bbl is opening you can see in the pic from the link how we have the vac hoses hooked up

you're working on a big block ford? wonder why i thought it was a chev. tell me what yr. what motor are you working on. you also said it idle at 500 rpm's in drive. 900 in park and 600 in drive is ok. be back when race is over.

not a big block lol its a 65 mustang. 65 289 bored 30 over. 204/214 duration, 448/472 lift cam. plus some other stuff.

now that we have the power breaks hooked up and the tranny hooked up we also hooked up the pcv also to the intake mainfold it changes a lot the idel changes when we hooked that up
now we have in park 900 rmp and in drive 450 maybe 500 thats what i am talking about it drops too much almost won't stay running in gear
maybe the pcv is bad its chattering