S2000 Under The Hood S2000 Technical and Mechanical discussions.

New TCT leaking

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Old Jan 19, 2021 | 11:51 AM
  #11  
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One thing I’ll admit is that I couldn’t get the TCT flush to the block before I torqued it there was probably a 2mm gap that I assumed it was the O-ring not wanting to squeeze in.
Another one over tightened... ?

-- Chuck
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Old Jan 19, 2021 | 11:55 AM
  #12  
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Originally Posted by fernando.
Ok... but your theory still doesn't make sense. An engine can still have adequate oil pressure even if a gasket is leaking/sweating. A small oil leak does equate to TCT destruction - LOW oil will have a greater effect on oil pressure/heat then that.
Think about how the OEM TCT is constructed. There's a .3mm inlet that supplies oil to the whole unit. That's point three millimeters. That oil passage has to fill the chamber, then go into the TCT service door, through the oil screw/hole and then it can push the piston against the guide. All the while the other chamber is there squirting oil on the chain. If you disrupt flow to that .3mm inlet, you will not have enough oil flow to maintain pressure on the piston. Billman's unit has a bigger oil hole, so the piston will get more oil flow.

I am not saying that the TCT will self destruct if you have a leaking *edit:VTEC top gasket. I think that's being a bit hyperbolic. If you want to put my theory to the test, loosen but don't unbolt the VTEC solenoid top bolts with the engine running, and tell me if the TCT starts rattling. It did for me, because I'm careless and forgot to torque the bolts down, and when I tightened the bolts, the noise went away. For the record I have a Billman TCT I got from a part out. My theory is backed up by my own F-up.
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Old Jan 19, 2021 | 11:56 AM
  #13  
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Originally Posted by SQ2000
Okay I’ll do some more investigating when I get home. I doubt it is the vtec solenoid as there was no leak before I changed the TCT. One thing I’ll admit is that I couldn’t get the TCT flush to the block before I torqued it there was probably a 2mm gap that I assumed it was the O-ring not wanting to squeeze in. I hesitated to torque it but when I watched a couple YouTube videos it looked like the people installing them also had a small gap there before tightening so I went for it but maybe that was the wrong move. I did not realize the ballade sports stuff had such a bad reputation or I would have bought an alternative. To be honest I don’t think there was anything wrong with my OEM tensioner yet I just wanted to do preventative maintenence. Should I try putting that one back in? I gotta figure out how to compress it again.. and the ballade sports one for that matter.
Were you able to overcome the small gap with your fingers? If so, it's fine. If you needed to use the bolts to force the unit in because you couldn't make it sit flush against the head with your fingers, then that's no bueno.
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Old Jan 19, 2021 | 11:57 AM
  #14  
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Originally Posted by SQ2000
I couldn’t get the TCT flush to the block before I torqued it there was probably a 2mm gap
overtightened chain.
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Old Jan 19, 2021 | 12:29 PM
  #15  
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why is everyone always blaming ballade when it seems to be mainly user install error?
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Old Jan 19, 2021 | 12:52 PM
  #16  
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Same issue with the same Ballade TCT.

-- Chuck
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Old Jan 19, 2021 | 01:21 PM
  #17  
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Originally Posted by s2000maniac
why is everyone always blaming ballade when it seems to be mainly user install error?
Because it's designed in a way that leaves room for error.

With a Billman TCT or Honda TCT you pull a pin and that's it. No bolts/wing nut to deal with it. If it's not set correctly you'll have an over tightened chain and shred your engine apart.
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Old Jan 19, 2021 | 01:34 PM
  #18  
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Okay well that sucks then, it looked like the guys on the 2 videos I watched also overtensioned there’s aswell then. I tried manually cranking the engine and it only got pushed out more so When I got it back to the 2mm gap I thought that was gonna be as good as it would get. I didn’t drive the car but it idled for a few minutes and I revved it in neutral for like 20 seconds.... do you think I did permanent damage to my timing chain?... I’m going to go take it out in a few minutes I guess. So what should I do try to reinstall it correctly? I still not know how to compress it now that it’s in. Should I try to make a pin for my oem?
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Old Jan 19, 2021 | 02:39 PM
  #19  
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I have it off and compressed again but I can’t get the chain to lose tension by hand cranking it there is always the small gap
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Old Jan 19, 2021 | 02:49 PM
  #20  
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Originally Posted by SQ2000
Okay well that sucks then, it looked like the guys on the 2 videos I watched also overtensioned there’s aswell then.
Just out of curiosity, which two videos?

Thanks!
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