Transmission Flair up
#1626618
05/29/14 10:51 PM
05/29/14 10:51 PM
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Joined: Jan 2003
Posts: 1,235 TN
65racer
OP
2009 IHRA World Champion
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OP
2009 IHRA World Champion
Joined: Jan 2003
Posts: 1,235
TN
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Ok guy's I have a small problem I have been chasing for a few weeks now, and can't seem to find the problem. the transmission in the car works flawles, but ever now and then it will flair in low gear before the shift, it has happened twice and cost me the rd win, once was in the semi's with 3 cars left, and last weekend in the 4th rd, never seems to be in the same spot, but always before the 2nd gear shift, I have had the trans out and looked it over, and just can't seem to find anything to point a finger at, as to what is causing it to happen, this is just something it has started doing this season, I need to fix this problem before to long, as I am leading the points chase at the track, and just can't be giving rds back because of something of this nature, so if anyone has any suggestions, please throw them my way, and let;s see if we can solve this little problem.
Thanks
Dave
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Re: Transmission Flair up
[Re: DusterW2]
#1626623
05/30/14 02:05 PM
05/30/14 02:05 PM
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Joined: Jan 2003
Posts: 25,892 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,892
Rio Linda, CA
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That's my thought, if no LBA the sprag might be slipping just before the 1-2 shift.
The INTERNET, the MISinformation superhighway
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Re: Transmission Flair up
[Re: John_Kunkel]
#1626624
05/31/14 08:59 AM
05/31/14 08:59 AM
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Joined: Jan 2003
Posts: 1,235 TN
65racer
OP
2009 IHRA World Champion
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OP
2009 IHRA World Champion
Joined: Jan 2003
Posts: 1,235
TN
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Sorry guy's for not posting sooner, been having computer problems, have had the transmission out, and apart, cannot see or find anything out of the ordinary, as being the problem, the line pressure is 155 lbs, and the valve body is a turbo action with a brake, but I don't use the brake, no lba, when the problem occurs, it flairs so fast the air shifter will shift the transmission into 2nd gear, you're a sitting duck then,it still pulls when it shifts, and there is no consistent time it does it, but it seems to happen when it starts to get some heat in the traansmission, but it never gets over 200 degrees, I am baffales as to what is causing this problem, it is something that has just started happening recently, out of ideas?????????????
Dave
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Re: Transmission Flair up
[Re: Quicktree]
#1626628
05/31/14 10:54 AM
05/31/14 10:54 AM
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Joined: Jan 2003
Posts: 1,235 TN
65racer
OP
2009 IHRA World Champion
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OP
2009 IHRA World Champion
Joined: Jan 2003
Posts: 1,235
TN
|
Quote:
what does flair mean? describe what it's doing a little better.I am sure someone can help.
Quicktree, it acts just like it is slipping, when it happens it hits the shift chip, and shifts the transmission, doesn't do this all the time just ocasionally, never the same place in the track, but both times it has been in low gear when it happens, the 1st time it happened I thought maybe there was something on the track, that the starting line crew just missed to clean up, but the second time it was out past the 60' clocks,last weekend, after it acted up, I went 2 more rds and it was fine, worked perfect, no idea what is taking place yet, baffled over the deal, but I need to figure out what is goin on.
Dave
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Re: Transmission Flair up
[Re: nss guy]
#1626629
05/31/14 11:05 AM
05/31/14 11:05 AM
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Joined: Jan 2003
Posts: 1,235 TN
65racer
OP
2009 IHRA World Champion
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OP
2009 IHRA World Champion
Joined: Jan 2003
Posts: 1,235
TN
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Quote:
I just went thru a similiar problem. My car 60ft great but slipped or flared up on the 1-2 shift. Trans checked good, ended up being the converter. Sent in to ATI and they said only good piece was the back plate.
Hello Jim, was you're problem every pass or just occasional ? Mine is only every now and then, just don't know when it is goin to happen, both times it has happened it has never actually reached the point on the track for the 1st to 2nd gear shift, it's just like it spins the tires, and hits the shift chip, and shifts the transmission.
Dave
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Re: Transmission Flair up
[Re: 65racer]
#1626632
06/02/14 12:28 PM
06/02/14 12:28 PM
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Joined: Jan 2003
Posts: 1,812 Portsmouth, VA
DusterW2
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,812
Portsmouth, VA
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What revision TA brake? 17998-4, -5, -6, or -7, and the newest 17999. Some have reported cracks in the transfer channel casting due to machining mods. Here are some pics of the internals - http://www.turboaction.com/frame.htmlscroll down and find Technical Tips, and then the second grouping of links shows drawings of the internals. Bottom line - high probability it is either the over-running clutch or the converter. Give Paul Forte a call at TA
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Re: Transmission Flair up
[Re: John_Kunkel]
#1626634
06/03/14 10:04 PM
06/03/14 10:04 PM
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Joined: Jan 2003
Posts: 1,235 TN
65racer
OP
2009 IHRA World Champion
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OP
2009 IHRA World Champion
Joined: Jan 2003
Posts: 1,235
TN
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ok guy's here's an update, as I said I could not find anything that looked to be the culprit, causing the problem, so put it back in the car, went to the races this past weekend, made 2 time trials, and 4 rds and the transmission performed flawless, was it something I replaced in it while it was apart, I don't think so, all I replaced was the o-ring on the front pump, time will tell if the problem is cured, but I feel better about it than before, now I have to fix a pan leak I have created by being in a hurry to get things buttoned up, but that ain't no biggie. Thanks for all the advice we will see how it goes, and btw I still am holding on to the points lead, gonna dig in and see if I can win this deal again this year.
Thanks Dave
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