Engine Blew Due To TB Mod?
02-21-03, 02:06 PM
#1
WTB S5 N/A FC
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Engine Blew Due To TB Mod?
So I did the TB mod last summer. Engine blew about a week later. I sell the car. Chris (buyer) tells me that there is JB Weld flakes ALL over inside the intake manifolds. I pulled the butterlies and the rod that held them, and used JB Weld to cover the holes that were left from the rod. Any comments? ANyone else had this problem? I am gettin another FC in the next few months (by end of May) and I wanted to do the TB mod again, but not if it will kill my engine!!!!
02-21-03, 02:12 PM
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meh
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thanks for posting this...I just finished the tb mod, have yet to install it on the car. I had them welded from the outside, and was thinking about using jb weld to fill the rest of the hole on the inside...now I won't
people cautioned me against using it just for that reason, but I never found anyone who it actually happened to...now I know
people cautioned me against using it just for that reason, but I never found anyone who it actually happened to...now I know
02-21-03, 02:14 PM
#3
WTB S5 N/A FC
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Yeah. I sure learned my lesson. Oh well, a nice 89 GTU w/ new paint and engine will make me feel better...Now how do I get to Georgia from Tx w/o a car......
02-21-03, 02:22 PM
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I can't wait to see that 5.0 in her....(did I just say that?) I read somewhere that someone used JB Weld to do it. Man, I feel like such a dunce....
) I read somewhere that someone used JB Weld to do it. Man, I feel like such a dunce....
02-21-03, 02:27 PM
#7
Learned alot | Alot to go
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this isnt the first thread ive read where an engine went due to jb weld, someone last year used jbweld to try to mimic pinapleracing's more efficient 5&6th ports. It came loose the next day and ate his engine
-Jacob
-Jacob
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02-21-03, 02:39 PM
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Once again, using a consumer grade product (ie JB WELD) instead of an Industrial Grade product (IE The correct formulation of DEVCON for your application; leads to the destruction of a car, even though the mod was well conceived; just poorly executed.
GUYS:
1.Read the product information and follow the direciond to a TEE!. They were written for a reason.
2. Use the correct product for the JOB, don't try and cheap out or avoid waiting a few days for the correct product.
3. DO IT RIGHT:->DO IT ONCE
John
GUYS:
1.Read the product information and follow the direciond to a TEE!. They were written for a reason.
2. Use the correct product for the JOB, don't try and cheap out or avoid waiting a few days for the correct product.
3. DO IT RIGHT:->DO IT ONCE
John
02-21-03, 02:58 PM
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I just bought a TB on ebay to replace mine that I modded. My car sucks to warm up in the winter so Ill trade that for a little less throttle response. I dont think the TB mod is worth it if you ask me. BTW I didnt use JB Weld on the TB or on the 5th/6th port sleeves.
02-21-03, 03:17 PM
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Rico, not to be a dick or anything... but...
Did you texture the front-most hole? It's pretty smooth, and asking to slip into the intake.
I JUST did the TB mod last night on my spare intake; but I made sure to cut some grooves into the brass sleeves, to give the JB Weld something to 'hold' onto.
Did you texture the front-most hole? It's pretty smooth, and asking to slip into the intake.
I JUST did the TB mod last night on my spare intake; but I made sure to cut some grooves into the brass sleeves, to give the JB Weld something to 'hold' onto.
02-21-03, 03:25 PM
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Guys dont use JB weld. Use a NPT plug Teds site has the sizes Just buy a tap and the plugs and dont tap the hole all the way through, use a bit of locktite and you will be fine.
02-21-03, 03:28 PM
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02-21-03, 05:12 PM
#19
fart on a friends head!!!
teds site is a taaaaaaaaaaaaaaaad bit flawed. . . well, maybe not for a new or great condition TB. anyways, the rear hole is usually a bit larger than the front hole. i guess it just gets worn out. id go a little bigger on the tapping. so you get a good seal.
paul
paul
02-21-03, 05:16 PM
#20
Haven't we ALL heard this
Ok, so what is a "Jb Weld" flake? I would be a lot more convinced of the findings if your post also said something about jb weld missing from the throttle body. Was there any matter missing from where you put the JB weld?
James
James
02-21-03, 11:48 PM
#22
Banned. I got OWNED!!!
this isnt the first thread ive read where an engine went due to jb weld, someone last year used jbweld to try to mimic pinapleracing's more efficient 5&6th ports. It came loose the next day and ate his engine
Therefore, I would say that some small flakes of JB weld wouldnt kill your engine either, though Im not saying it is out of the range of possiblility, rather that given this experiment, it is out of the range of likelihood.
02-22-03, 01:14 AM
#25
Banned. I got OWNED!!!
Actually when before I took it apart I never even checked it's compression or anything, I figured it'd be grenaded from his description.
I took it apart and all seals were present and accounted for, no cracks or breaks of any kind. Just some disturbance of the carbon on the surface of the rotors, and not much at that (it didnt get back down to bare metal). IT sorta looked like what you'd expect if you ran part of a rag through an assembled engine, then took it apart and looked at the carbon on the rotors..part of it was "rubbed" off.
The seals on that rotor did seem a bit stuck, perhaps the jb weld disentigrated but not before it jammed the seals up inside the rotors a bit too much, and caused it to run poorly for a few seconds, then he shut it off and assumed it was FUBAR. Who knows? All I know is I could have put it right back together and had a great motor...
I took it apart and all seals were present and accounted for, no cracks or breaks of any kind. Just some disturbance of the carbon on the surface of the rotors, and not much at that (it didnt get back down to bare metal). IT sorta looked like what you'd expect if you ran part of a rag through an assembled engine, then took it apart and looked at the carbon on the rotors..part of it was "rubbed" off.
The seals on that rotor did seem a bit stuck, perhaps the jb weld disentigrated but not before it jammed the seals up inside the rotors a bit too much, and caused it to run poorly for a few seconds, then he shut it off and assumed it was FUBAR. Who knows? All I know is I could have put it right back together and had a great motor...