Good/Bad news for DR TC sets

[silvergtjrad]

That's fine but does your shop know how and where to use the gauge?

Nope. I looked at it with him for a couple of minutes and we didnt figure it out. We just used the specs. listed for clearances. Havent done the timing cover yet though. Im waiting to get the block back from a different shop so we can test fit as we go.

[blackbombshell95]

Ok. So both of us are on the same page.

The new gauges should be on their way. I think.

[SappySE107]

Going out monday to everyone that already ordered the set.

[CNCguy]

For those who have been anxiously waiting, I have put together some pics on how to use the gages. I have been trying to get this done for about three weeks and could never find the time to do it the way I wanted so I will throw this out there until something nicer gets done. I had planned to relieve a front cover for illustration but have not had enough time to do so. For the time being, I am attaching the pics to this post since we have had some issues with our ISP and server.

Below are pics of the news gages, how each gage is used, a modified crank and the crank modification drawing.

With cam in block, check clearance around upper gear using "BLOCK GAGE". This is done by placing end with hole against cam hub and rotating around center of cam. The "A" tab represents enough clearance for the chain in it's most rear position. This portion of the gage should be used in areas where the chain is engaged with the upper gear. Tab "B" on "BLOCK GAGE" is used to check areas between the sprockets where the chain is not held in place. To use gage, place the edge against the face of the block and move tab "B" along chain route.

The "Cover Gage" has two two steps and is used with a straight edge across the face of the cover. The shortest height is minimum depth where chain engages sprockets. The taller step allows for clearance in the areas between the sprockets. If cover is cut on a milling machine, it would be easiest to use the tallest portion all around.

These gages should provide enough clearance but it is advised to use feeler gages to check the actual clearance between chain and block. This should be done when pushing the chain towards the block. Areas where the chain is engaged with sprockets only require .020" clearance while areas between sprockets need .050". Additional clearance does not hurt anything and will allow for future chain wear and slop.

[blackbombshell95]

Thanks Marc. I am going to drop these at my machinist at this very moment.

[silvergtjrad]

I got mine in the mail today as well, I havent had a chance to use them yet though.

[blackbombshell95]

My engine shop called me to say that everything is installed and ready to go. I'll be on hopefully tomorrow with what I paid and where and what material they removed plus specs. I think did a little more removal than recommended here and there.

Check back soon.

[blackbombshell95]

Didn't get a chance to pick up the engine last week. But i went down today and paid for the rest of it. When my dad picks the engine up in the next 3 days he'll have all of the specs for me.

[bob442]

i suppous this isnt so bad, better safe then sorry.

Anyone do this to a 3500 yet?

[sunbird3400]

big block v6 timing chain

i just read the post on 60s big block v6s i wonder what the timing chain is like on those?

[bob442]

they most likely wont work, if they were even close to working, new gears would need to be made, see, what i found out is that the DRTC sets are put together by 2 companys, one is CNCguy (cant remember his company name) he makes the new gear sets, and the chain is already made by another company, Ben is using the exact chain from a 3400RWD block double roller timing set, the difference is the cam mounting, and i think the crank gear too.

[pocket-rocket]

what i found out is that the DRTC sets are put together by 2 companys, one is CNCguy (cant remember his company name) he makes the new gear sets

TCE. He also makes the EGR block off plates, aftermarket TBs, AFPRs and a few other items for us and the MGB crowd (check the two links in his sig). Come to the next meet and pick his brain, he's a good guy.

[ericjon262]

bump kinda...

if we were to do a "pre-buy" and have say 10 people put money down on double rollers could we get some made up?

Thanks-

Eric.

[bob442]

it comes down to CNCguy having time and a chance to run the mill to produce them. its a good likely hood, but, you would have to ask him personally.

[bszopi]

I have one sitting in the garage. How much is it worth to you...? Hehehe...