Bonehead move of the week !!
#2702103
09/29/19 09:51 PM
09/29/19 09:51 PM
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Joined: May 2014
Posts: 179 California, U.S.A.
Torquemonster440
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Hey guys, well... I accidentally shifted my 727 from 2nd to low at about 5k rpm !! The car bounced and heaved pretty violently until I reacted and pushed it back into second.. so violently that my fan made contact with my plastic shroud and broke a piece off !! I just hope I didn't damage anything internally [the rear sprag]... After safely pulling off the road and I paced around the car for a minute wanting to kick my own ass for brain farting and doing something so stupid. Nothing leaking under the car, starts and drives like normal, I just hope I didn't damage any other parts. Any recommendations on how to proceed ? Did I get lucky ? or....should I have the trans looked at just to be safe ? Any advice is appreciated.. Thanks.
1966 Satellie.. 12.55 @107.75. 906 heads. 3780 lbs.
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Re: Bonehead move of the week !!
[Re: Torquemonster440]
#2702108
09/29/19 10:04 PM
09/29/19 10:04 PM
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Joined: Feb 2005
Posts: 20,201 PA.
pittsburghracer
"Little"John
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"Little"John
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Posts: 20,201
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If it was me the transmission would come out and torn apart. Close inspection of the case checking for cracks would also be done. Then a good check of transmission mounts and engine mounts
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Bonehead move of the week !!
[Re: Moparteacher]
#2702111
09/29/19 10:07 PM
09/29/19 10:07 PM
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Joined: May 2014
Posts: 179 California, U.S.A.
Torquemonster440
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I don't know.. maybe 6,500 ? It scared the everlovin be-jesus outta me.. Surprisingly, I didnt hear any loud bangs or pops.. like a mechanical failure. Still scary as hell.. the rear end hopping and skipping ..what a DUNCE !!
Last edited by Torquemonster440; 09/29/19 10:11 PM.
1966 Satellie.. 12.55 @107.75. 906 heads. 3780 lbs.
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Re: Bonehead move of the week !!
[Re: Torquemonster440]
#2702118
09/29/19 10:25 PM
09/29/19 10:25 PM
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Joined: Feb 2005
Posts: 20,201 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,201
PA.
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If you glazed the clutches or band they could or will slip. But what do I know.
Last edited by pittsburghracer; 09/29/19 10:26 PM.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Bonehead move of the week !!
[Re: Torquemonster440]
#2702120
09/29/19 10:27 PM
09/29/19 10:27 PM
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Joined: Aug 2003
Posts: 43,303 Bend,OR USA
Cab_Burge
I Win
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I Win
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What valve body are you running? I don't like low band apply manual valve body for that reason
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Bonehead move of the week !!
[Re: Cab_Burge]
#2702127
09/29/19 10:42 PM
09/29/19 10:42 PM
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Joined: May 2014
Posts: 179 California, U.S.A.
Torquemonster440
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What valve body are you running? I don't like low band apply manual valve body for that reason Stock valve body.. I want to upgrade to a non LBA valve body soon.. I really cat explain why I pulled the shifter into low instead of high.. just a dunce move.
1966 Satellie.. 12.55 @107.75. 906 heads. 3780 lbs.
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Re: Bonehead move of the week !!
[Re: Torquemonster440]
#2702136
09/29/19 11:38 PM
09/29/19 11:38 PM
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Joined: Oct 2007
Posts: 4,212 New York
polyspheric
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New York
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If the car has oil pressure, idles normally, and has good & consistent leak-down numbers IMHO the engine is safe. If you bent a valve it would affect CCP immediately.
Boffin Emeritus
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Re: Bonehead move of the week !!
[Re: polyspheric]
#2702142
09/30/19 12:46 AM
09/30/19 12:46 AM
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Joined: May 2014
Posts: 179 California, U.S.A.
Torquemonster440
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If the car has oil pressure, idles normally, and has good & consistent leak-down numbers IMHO the engine is safe. If you bent a valve it would affect CCP immediately. Yep, gonna do a compression check tomorrow.. potentially a leak down if I find any discrepancies. I'll check back with results. Initially I was more concerned with the trans. I just hate damaging something over a stupid mistake. Hopefully I was lucky and only need to replace the shroud.
1966 Satellie.. 12.55 @107.75. 906 heads. 3780 lbs.
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Re: Bonehead move of the week !!
[Re: Torquemonster440]
#2702145
09/30/19 01:21 AM
09/30/19 01:21 AM
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Joined: Aug 2003
Posts: 43,303 Bend,OR USA
Cab_Burge
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I Win
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Something doesn't seem right about your tranny, no stock valve body should be able to engage low gear form second or high gear above 4500 RPM or above something is goofy I have done similar, shifted 3rd to reverse at the end of a 1/4 ,mile trying to shift it into neutral in one of the old NHRA hemi stocker, it went into neutral and then started to rev up engaging reverse making the rear end almost lock up, I pulled the stock comsole shifter back out of reverse and managed to get it into 2nd and then shoved it back into high gear, what a cluster frick that was
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Bonehead move of the week !!
[Re: Cab_Burge]
#2702176
09/30/19 09:22 AM
09/30/19 09:22 AM
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Joined: May 2014
Posts: 179 California, U.S.A.
Torquemonster440
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Something doesn't seem right about your tranny, no stock valve body should be able to engage low gear form second or high gear above 4500 RPM or above something is goofy I have done similar, shifted 3rd to reverse at the end of a 1/4 ,mile trying to shift it into neutral in one of the old NHRA hemi stocker, it went into neutral and then started to rev up engaging reverse making the rear end almost lock up, I pulled the stock comsole shifter back out of reverse and managed to get it into 2nd and then shoved it back into high gear, what a cluster frick that was Im not even sure if it actually engaged low gear.. it just bucked and heaved pretty violently.. I dont actually recall the RPM going sky high, but it all happend so fast. It does have a "shift kit" in it.. other than that I believe the trans is stock. I do have a tci outlaw shifter and a tci deep aluminium pan.
Last edited by Torquemonster440; 09/30/19 09:29 AM.
1966 Satellie.. 12.55 @107.75. 906 heads. 3780 lbs.
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Re: Bonehead move of the week !!
[Re: 451Mopar]
#2702177
09/30/19 09:26 AM
09/30/19 09:26 AM
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Joined: May 2014
Posts: 179 California, U.S.A.
Torquemonster440
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when I did that with the 383 engine, I slightly bent 3 valves. It seemed to run OK, but not the same. Man... I really hope that's not the case.. I'm gonna run a compression check and see if I find any inconsistencies.. if I do, I'll run a leak down on it...
1966 Satellie.. 12.55 @107.75. 906 heads. 3780 lbs.
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Re: Bonehead move of the week !!
[Re: 451Mopar]
#2702265
09/30/19 01:36 PM
09/30/19 01:36 PM
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Posts: 179 California, U.S.A.
Torquemonster440
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when I did that with the 383 engine, I slightly bent 3 valves. It seemed to run OK, but not the same. Update: just ran a compression check: #8 155. #7 155 #6 165. #5 155 #4 165 #3 160 #2 165 #1 155 I think I may have dodged a bullet.. I took it for a nice "easy" spin around the block, all felt normal.. those psi numbers look within spec to me. The discrepancy between #1 and #2 is a 6-7% fluctuation.Do you think a leakdown would still be necessary?
Last edited by Torquemonster440; 09/30/19 01:40 PM.
1966 Satellie.. 12.55 @107.75. 906 heads. 3780 lbs.
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Re: Bonehead move of the week !!
[Re: Torquemonster440]
#2702268
09/30/19 01:39 PM
09/30/19 01:39 PM
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Joined: Aug 2003
Posts: 43,303 Bend,OR USA
Cab_Burge
I Win
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I Win
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[quote=451Mopar]
I think I may have dodged a bullet.. I took it for a nice "easy" spin around the block, all felt normal.. those psi numbers look within spec to me. Do you think a leakdown would still be necessary? If it is hurt, the motor don't know it in the combustion chambers, do it AKA, your good on that part
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Bonehead move of the week !!
[Re: Cab_Burge]
#2702285
09/30/19 02:37 PM
09/30/19 02:37 PM
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Joined: May 2014
Posts: 179 California, U.S.A.
Torquemonster440
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[quote=451Mopar]
I think I may have dodged a bullet.. I took it for a nice "easy" spin around the block, all felt normal.. those psi numbers look within spec to me. Do you think a leakdown would still be necessary? If it is hurt, the motor don't know it in the combustion chambers, do it AKA, your good on that part Ok.. I ran a leak down on all the 155psi range cylinders.. #'s 1,5,7 and 8.. coincidentally, they are some of the easiest to get to also.. they all checked in the green"low range".. #1 being the worst at around 30% leakage the rest were around the 15-20% range. I'm pretty confident I didnt bend any valves. I suspect #1 showing more leakage than the others because of some slight pitting in that cylinder toward the top of the bore. That was my fault, when I did the head swap I broke some of the head bolts loose and then stopped.. for like 2 days, water got into that cylinder and formed some very slight pits.. I know.. another knuckle head move !! But, I think I'm in the clear as far as bent valves go.
1966 Satellie.. 12.55 @107.75. 906 heads. 3780 lbs.
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Re: Bonehead move of the week !!
[Re: Sixpak]
#2702286
09/30/19 02:39 PM
09/30/19 02:39 PM
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Joined: May 2014
Posts: 179 California, U.S.A.
Torquemonster440
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Drop the trans pan and see what, if any, sort of junk might be floating around down there. A little black sludge in the corners is normal. Do the bands and change the fluid/filter - wouldn't hurt to look. If you don't have a magnet in the pan then add one; more cheap insurance to keep any iron out of the fluid. That's a good suggestion, I will do that. Thanks. And, my pan does have a magnet, I'm curious to check it.
Last edited by Torquemonster440; 09/30/19 02:41 PM.
1966 Satellie.. 12.55 @107.75. 906 heads. 3780 lbs.
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