acceleration issues and exhaust leaking

[Green7mgte]

that exhaust leak might cause poor acceleration on a NA were back pressure is a good thing.. are we talking a PLUME of smoke here?.. but I don't see that being the issue. your dad is on the right track with the transmission. all small searches I did point twords your tranny going.. Do a tranny diagnostic.. what other codes are you throwing.
http://www.cygnusx1.net/Supra/Librar....aspx?S=AT&P=1
thats the link for the automatic transmission page for the Toyota Supra repair manual.. learn it, love it, live it..
check for codes on your tranny and report back..

other issues.
your afm could be the culprit..
check here also
http://www.cygnusx1.net/Supra/Librar....aspx?S=EM&P=5
theres a link for checking engine codes in the faq. or consult the tsrm.. its in there.

whats your idle sound like after you got back from the test trip.
if you have a normal idle of what is it.. 700 for an na?

[Green7mgte]

whoa.. hold on just seen that your cams shifted position..

lol re set your timing there bucko.

hers the Ignition system page
http://www.cygnusx1.net/Supra/Librar....aspx?S=IG&P=1

[zby67]

Originally Posted by Green7mgte

that exhaust leak might cause poor acceleration on a NA were back pressure is a good thing.. are we talking a PLUME of smoke here?.. but I don't see that being the issue. your dad is on the right track with the transmission. all small searches I did point twords your tranny going.. Do a tranny diagnostic.. what other codes are you throwing.
http://www.cygnusx1.net/Supra/Librar....aspx?S=AT&P=1
thats the link for the automatic transmission page for the Toyota Supra repair manual.. learn it, love it, live it..
check for codes on your tranny and report back..

other issues.
your afm could be the culprit..
check here also
http://www.cygnusx1.net/Supra/Librar....aspx?S=EM&P=5
theres a link for checking engine codes in the faq. or consult the tsrm.. its in there.

whats your idle sound like after you got back from the test trip.
if you have a normal idle of what is it.. 700 for an na?

Almighty i took a a look at the code link. lG-7 code the one about the spark plugs is all i can come up with well we were working in the timing area we found alot of oil in the first silonder spark plug. we didnt check the others since to much work pulling off the throttle body. she idles fine with no shakes or falts. idles between 700 and 600 rpms at cold start then when wormed up stays between 800 and 700 rpms. its how she has been when i got her. could the timing off by one notch cause the engine to revv high but not gain any speed? if so then we will reset the timing. is there a way to keep the cams from moving? also once the car is wormed up ill have afew pics on ware she is leaking from the exhaust.

[zby67]

this is ware i see the smoke coming from. also this shield here rattles when i drive.



this has been this way since iv owned the car and was wondering if it is a bad thing? iv cleaned it up afew times but it just comes back so im guessing its a bad thing.



this is the inside of the throttle body. also she fires from cylinder 1. and if it prove its the trans i drove her in L to the store then back home in D she seems to be accelerated better. but then again my last test run she did the same thing then went back to acting up.

also if when i go back and reset the timing how do i keep the cams from turning? theres no hole to put a punch in to hold them in place well tightening the belt.

[Green7mgte]

what did your transmission diagnostic say?
oil in spark plug galley is fixable.
all that oil is an excessive amount of blow by. not that good. possibly one of your main front and main rear oil seals is most likely the culprit for the blow by.

[zby67]

Originally Posted by Green7mgte

what did your transmission diagnostic say?
oil in spark plug galley is fixable.
all that oil is an excessive amount of blow by. not that good. possibly one of your main front and main rear oil seals is most likely the culprit for the blow by.

this would be easyer if i could hook her up to a computer but when reading everything i get ether AT-30 or AT-46. unless the timing being off by one notch really messes up acceleration that much. about a month ago i did a transmission service on her new trans fluid and filter. before the test drive last night she was reading that the trans fluid lvl was ware it was suppose to be when i got home it said it was over now its saying its half full. i just checked it... it could be valve body or primary regulator thats faulty AT-109

[cre]

Originally Posted by zby67

unless the timing being off by one notch really messes up acceleration that much.

It does. Depending on how it shifted it can drastically increase engine heat OR it can drastically increase exhaust temps (if it's the exhaust cam); If it's the intake cam it can cause the intake valves to close too soon, choking the engine; or it can close it too late allowing a pulse to disrupt the incoming airflow, again choking the engine but in a very different way.


And quit whining about not having a computer to plug into the car... we're all about Atari here boy!

[zby67]

Originally Posted by cre

It does. Depending on how it shifted it can drastically increase engine heat OR it can drastically increase exhaust temps (if it's the exhaust cam); If it's the intake cam it can cause the intake valves to close too soon, choking the engine; or it can close it too late allowing a pulse to disrupt the incoming airflow, again choking the engine but in a very different way.


And quit whining about not having a computer to plug into the car... we're all about Atari here boy!

lol Atari is fun makes things interesting. ok and yes both cams moved when we went to tighten the belt. now how much damage could happen if i cant get to it. i drive 20 or so miles to work all this week. also what is that tool called that keeps the cams in place well you tighten the belt. im only asking cause i dont see and hole to put a punch into to keep them from moving.

also many thanks to all the help!