Tuner bent valves, now what????
Thread Starter
Teching In
Joined: Apr 2003
Posts: 28
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From: 200 MPH
Tuner bent valves, now what???? Hey guys, I had a big name tuner do a camswap on my f-body. i just had boltons so the motor was stock when i brought it to them. i choose a farily large cam, but nothing unheard of. they installed it but apparently chose the wrong valvesprings (too weak) 
it was then put on the dyno and they floated the valves. 
I must have the worst luck in the world because i had a similar valve problem on my old 98, but we did all the work in my garage so it was our own fault. Thats the main reason why i let a shop do the work this time on my new car! i saw some of the valves and they were blatantly bent several degrees. so obviously the pistons have been scored too, right?
what all should the tuner replace/repair to make this bad situation acceptable?
thanks
it was then put on the dyno and they floated the valves. I must have the worst luck in the world because i had a similar valve problem on my old 98, but we did all the work in my garage so it was our own fault. Thats the main reason why i let a shop do the work this time on my new car! i saw some of the valves and they were blatantly bent several degrees. so obviously the pistons have been scored too, right? what all should the tuner replace/repair to make this bad situation acceptable?
thanks
Banned
Joined: Sep 2002
Posts: 1,298
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From: So Cal, CA
Re: Tuner bent valves, now what???? The tuner will need to fully take care of this...
you need to see if the pistons are scar'd, if there are any marks on the cylinder walls or pistons i would demand a new shortblock or replacment pistons...you dont want a damaged piston that acts fine for a few miles then breaks on you.
The head needs to be fully fixed and all parts/labor paid for. If they do not, make a phone call to the BAR immediatly and explain the situation. the bar is very fair to consumers and buisnesses both and they will handle it. but you are liable for ZERO of the damage.
you need to see if the pistons are scar'd, if there are any marks on the cylinder walls or pistons i would demand a new shortblock or replacment pistons...you dont want a damaged piston that acts fine for a few miles then breaks on you.
The head needs to be fully fixed and all parts/labor paid for. If they do not, make a phone call to the BAR immediatly and explain the situation. the bar is very fair to consumers and buisnesses both and they will handle it. but you are liable for ZERO of the damage.
Re: Tuner bent valves, now what???? If the pistons are have only minor ding, They could fly cut your pistons for you. Then you could run a big cam later on.
This isn't totally uncommon and rarely do the pistons need replacing, no less another shortblock.
This isn't totally uncommon and rarely do the pistons need replacing, no less another shortblock.
Thread Starter
Teching In
Joined: Apr 2003
Posts: 28
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From: 200 MPH
Re: Tuner bent valves, now what???? I highly doubt the dings are minor after seeing the torn up valves. but I really dont care how big the dings are. if any piston is even slightly scarred they will need to be replaced. As my screen name hints, I like to spray my vehicles and nitrous + dinged pistons wouldnt exactly make me feel "confident" in my motor's durability, to say the least...
going to try and get by there monday and see what the deal is
going to try and get by there monday and see what the deal is
Re: Tuner bent valves, now what???? I would like to know what combo they installed? Cam spec?springs used? Then I'll tell you what I think 
Also was this a sponsor of this site that knows these cars?(don't need to name them,just yes or no)
Also was this a sponsor of this site that knows these cars?(don't need to name them,just yes or no)
Re: Tuner bent valves, now what???? Sounds like your mind is already made up as to what you want as opposed to what you may need.
BTW, if you spray that much, you might as well use this opportunity to take the thing apart and build a built motor with boost piston, stronger rod bolts, etc.
BTW, if you spray that much, you might as well use this opportunity to take the thing apart and build a built motor with boost piston, stronger rod bolts, etc.
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Thread Starter
Teching In
Joined: Apr 2003
Posts: 28
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From: 200 MPH
Re: Tuner bent valves, now what????
I would like to know what combo they installed? Cam spec?springs used? Then I'll tell you what I think
Also was this a sponsor of this site that knows these cars?(don't need to name them,just yes or no)
Also was this a sponsor of this site that knows these cars?(don't need to name them,just yes or no)
yes, they are a sponsor here
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Verdad Gallardo Thread Starter
Teching In
Joined: Apr 2003
Posts: 28
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From: 200 MPH
Re: Tuner bent valves, now what????
Sounds like your mind is already made up as to what you want as opposed to what you may need.
BTW, if you spray that much, you might as well use this opportunity to take the thing apart and build a built motor with boost piston, stronger rod bolts, etc.
BTW, if you spray that much, you might as well use this opportunity to take the thing apart and build a built motor with boost piston, stronger rod bolts, etc.
Teching In
Joined: Jul 2003
Posts: 3
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From: Hamilton,NJ
Re: Tuner bent valves, now what???? it is my opionion that the shop should have checked piston to valve clearance since the cam is a bit on the large side, I think this might have been your problem and not valve float. did you insist on this cam?what I mean by this is did the shop try to talk you out of running this cam and you insisted on them putting it in?
TECH Enthusiast
Joined: Nov 2001
Posts: 666
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From: Richardson, TX, USA
Re: Tuner bent valves, now what???? When you dyno a car.....if any damage occurs, Isn't there some type of, "if it breaks on the dyno, we ain't responsible for it...." type of warning/liability waiver to cover the tuner/shop?
Mir Naziruddin
Mir Naziruddin
TECH Addict
Joined: Nov 2001
Posts: 2,021
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From: Angleton/Lake Jackson (South of Houston)
Re: Tuner bent valves, now what???? Hopefully your gonna get fixed up. I had a tuner tune my car with there cam and it didtn put down no where near what it should. They told me my heads where 2 big. MTI stage 2 heads and that i needed tr6 instead of Tr5s. Go figure. Drove 4 hrs home unloaded it and the mother ****** blew up after 5 min of driving. SO now im out of a Forged short block and a $2000 magic cam thats gonna cost me even more.
Good luck man i know how you fell. Im up ***** creak with out a pattle.
Good luck man i know how you fell. Im up ***** creak with out a pattle.
Thread Starter
Teching In
Joined: Apr 2003
Posts: 28
Likes: 0
From: 200 MPH
Re: Tuner bent valves, now what???? wicked- that sucks bro. i hope my situation doesnt end up with me getting screwed.
ha maybe, but wtf does that matter when they admitted the damage occured because of their wrong doing. if it didnt happen on the dyno, i would have pulled out of the shop, gone WOT, then it would have...
When you dyno a car.....if any damage occurs, Isn't there some type of, "if it breaks on the dyno, we ain't responsible for it...." type of warning/liability waiver to cover the tuner/shop?
Mir Naziruddin
Mir Naziruddin
ha maybe, but wtf does that matter when they admitted the damage occured because of their wrong doing. if it didnt happen on the dyno, i would have pulled out of the shop, gone WOT, then it would have... 
