Wtb tce drtc!

[1988GTU]

My two sets are going to be shipped out first monday on next month hopefully.

[unchained01]

Mine is getting sent tomorrow I think its fine but want to be sure I had one that was marked TCE and sent it to Canada LOL

[3400-95-Modified]

This was the E-mail I got from him. For anyone who did not get it.

To everyone involved in the double roller group buy,

Jon, 3400-95-modified, has brought to my attention that there were some issues with the timing chain sets. I would like to get this situation resolved as quickly as possible. To do so, I need for everyone to send there sets back in for repair or replacement as needed.

My assumption at this time is that there was an issue with the flame hardening process which caused to sprockets to grow. However, until I have some in hand to measure, I am only guessing. Jon has his on the way back to me and, hopefully, I will have some answers next week. Once I get them, a determination can be made on the course of action to take.

As everyone knows, this was a group buy that was done at costs. I did make a little money on a few extra sets that I added to the batch. Any repair or replacement costs will be coming out of my pocket as vendors will only give a refund on their portion of the work. If it was the flame hardening, I would only get that money back and will have to buy material, pay for all of the machining and gear cutting myself. In regard to both expense and time, I hope they can be repaired. I say this to let everyone know where I am at and will make sure everyone is satisfied with their parts.

I apologize for any inconvenience this has caused and am embarrased that any bad parts were shipped out. I made the mistake of assuming since everything was processed exactly the same as last time and using the same vendors, the parts were correct.


Thanks,
Marc
TCE Motorsports

PM me if you need his address.

[ericjon262]

aye aye aye.... well, I'm glad my engine is coming out for a clutch/TOB job anyways....

[unchained01]

I am sending mine just to make sure it is checked and within spec

[blckgagt]

Well Marc got my packages on Monday so hopefully soon he can update us with what happened to these and if he feels that all the sprockets need to be replaced or not. I know everyone that has a set should send it back to him for checking/repair if you did not get his email that he sent.

Really weird that the original batch has different numbers yet the other one Forced has fits the chain...

I just finished checking mine and I don't seem to be having the same issues that were shown in the videos. It looked just fine. I never got an email from him, but maybe I should send it in anyways.

[3400-95-Modified]

Well Marc got my packages on Monday so hopefully soon he can update us with what happened to these and if he feels that all the sprockets need to be replaced or not. I know everyone that has a set should send it back to him for checking/repair if you did not get his email that he sent.

Really weird that the original batch has different numbers yet the other one Forced has fits the chain...

[SappySE107]

My original batch version is 4.933" diameter and 4.536" inside to inside on the teeth.

[blckgagt]

That's what I've been thinking all along, and it was both of mine that were bad plus Geoff Morrow did the same check on his and they did the same thing. Really a bit odd.

I really need to check mine this afternoon and see if I am getting similiar results.

[3400-95-Modified]

Gathering from all the info, Marc is not at fault, he simply provided the blanks and out sourced the gear hobbing and treating - except for the fact that the parts weren't double checked, but this is a second run, so the hobber should have already had all the tooling setup and these should have just been a repeat job.

That's what I've been thinking all along, and it was both of mine that were bad plus Geoff Morrow did the same check on his and they did the same thing. Really a bit odd.

[ForcedFirebird]

Can you measure the bottom diameter of the cam sprocket?


Mine measured up at 4.525" and major overall DIA of the sprocket was 4.941"

I get those same measurements. Perhaps you got a blemished part that made is past part checking?

Before anything rash happens, everyone should just make sure the chain wraps completely around the gears and not skip like yours does. And yes, it only takes a small amount on a gear setup to eventually throw it off a lot.

Maybe it's .0000001" out of square, but by the time you get to the moon, it will be miles.

Gathering from all the info, Marc is not at fault, he simply provided the blanks and out sourced the gear hobbing and treating - except for the fact that the parts weren't double checked, but this is a second run, so the hobber should have already had all the tooling setup and these should have just been a repeat job.

[3400-95-Modified]

Can you measure the bottom diameter of the cam sprocket?

Like this, obviously using the narrower portion of the calipers to get deeper into the cut.




Mine measured up at 4.525" and major overall DIA of the sprocket was 4.941"

I also have no clue as to how something that is a production run could vary but all it takes is one miss calculation on the gear cutting machine and the error will compound fast which will make the chain jump. This is why I hope Marc can prove he did everything right but the gear cutter messed up somewhere... And I would assume if that is true then the cost to replace these wouldn't come out of his pocket because it's not his fault.

[ForcedFirebird]

Checked the one my tech bought for his car and it's fine. The chain can wrap completely around the gear and doesn't skip like Jon's did in those videos. In a production run, not sure why there would be a difference from one to the next.

[Z26-T]

Thanks for the information. I will continue to put off installing it until further information is out. Marc, just let us know what actions you want us to take with these once everything is figured out.

Thank you.

[Purple pit]

Hence my misinterpreted statement, but I'm going to just step back from this rather than piss anyone off any further.

Ok, well I guess we are all getting old and cranky.