Competition C-Rings?

[ThrottleJockey]

Can anyone tell me what a c-ring is used for in the engine of a pulling tractor? Do they work alongside the O -rings and head gasket or what? Just being curious. I'm a new fan of diesel truck pulling but I feel like an idiot. Thanks in advance!



Brian.

 

[Jim Fulmer]

You are into deep quiet territory, this will be a hot topic next year, like Twins were quiet (everyone keeping there hoods closed) last year, now every common Joe is building them (like me) back to the c rings... . big boost... . BIG, not little 60 lb stuff and lasting..... crazy sled pulling stuff..... or... ... never mind you find out!



Jim

 

[MY6EATSV8'S]

I know they hold over 100psi

 

[MCummings]

C-Rings??



You can get those down here, about 200 or so miles to the East of me,, ALOT of people get them,, it's popular,, Just go to the beach, and when you get out, the salty/sandy/scratchy feeling is a C-Ring,,,, oh,, wait,, That's SEA WEEDS,, Never mind



Don't know ANYTHING ABout them



(Don't do it, it's only a severe effect of the BOMB bug!)

You don't need it,,, Just like you don't need more money



Funny guy,

Merrick Cummings Jr

 

[Garry Verheyden]

OK, what the heck is a C-ring??? I know what an O ring is, but someone help a dummy like me out on the C-ring thing.

Garry.

 

[Johnboy3]

With a c-ring, your head can lift a little under a couple of hundred pounds of boost and the gasket won't give. Neat concept.

 

[HVAC]

C-Rings

One draw back is you would need to have the block out of the frame to machine the channel for them. Another concern is they wear on the head and can really groove up the head, rendering it useless. This is second hand BTW. The C-rings are quite dynamic and the more boost you make the better they seal. Possibly very cool.

 

[Garry Verheyden]

Thanks Johnboy and HVAC.

Do you groove them around the water jackets as well, or just around the combustion area?

Garry.

 

[BigBadDodge]

Here are some pics of them going in on a PowerStroke (psycho's)



Click Here



BBD

 

[Johnboy3]

HVAC, I have never heard of the wear on the heads. That's interesting info. I may be using a set of grooved heads with c-rings when I put my engine back together. The block is out at the machine shop right now. I'll have to check into this more.

 

[JBlock]

Ring Joint flange gaskets

In oil and gas industry, we use a ring joint flange designs (it sounds like a c-ring design) and it capable of containing 10,000 psi pressures. let's see 10,000 psi divided by 100 pound boost with 17 to one compression look like we dealing with only 1700 psi before self igniation, then I not sure of the pressure on the power stroke. .



Look like we need Jim Fuller to help with the rocket science work here.



The steel Ring joint flange design has a cross section which looks like a elongated hex in the vertical direction. the corners are well rounded. The only question is whether you have enough seating pressure with the stock head bolts. but you will never have one blow out.



Speaking of O-rings I have seen them installed one sided in a square groove in venting systems clourses, again holding 2500 psi loads.



Anyone blowing the o-rings or C-rings.



I never though i be pipelining in the CTD.

 

[HVAC]

C-Rings

Gary V. asked about using rings around the water jackets. The answer is no, sealer will contain the water and oil, it's the compression with the big boost numbers that gets out of control.



Johnboy3, so yur block is at the machine shop eh? Did you ever develop any head gasket problems with the twins? That why ya pulled it?



Regarding my statement, again this info is second hand. However, it was a tractor guy back in the Virginia area that mentioned that over the course of the summer pulls that they witnessed a significant groove in the head from the C-ring rubbing.



The C-ring usually resides in a groove on the deck surface that is deep enough for C-ring to protrude some above the deck surface. When the head goes on it smashes the C-ring down like a spring which results in the C-ring constantly pushing up on the head. This and the big boost numbers filling/expanding the inside of the C-ring work in tandem to keep the combustion pressure from excaping the cylinder.



So from what this tractor puller said about the damage to the head over the course of a dozen or so pulls, we became quite concerned about the effects on a daily driver street truck.



Performance Diesel was first to O-ring engines in the frame. Some sort of system is a must when going to twin turbos if you intend to run BIG fuel and BIG boost. We can O-ring the head and/or the block. We have had some setbacks while working out the technuque I must say, however Richard is running 80 psi, Chris is running 75 psi, and I'm running 90 psi successfully.

 

[BigBadDodge]

Would there be any advantage or dis-advantage to cutting a slight reciever groove in the head ? If o-ringing in the frame is posible, will it be a matter of time before we can cut the much larger grove in the block in the frame ?



BBD

 

[HVAC]

Receiver Grooves

We are using receiver grooves now. We can cut up to a . 085.

 

[BigBadDodge]

I meant with the C-Rings, sorry for the mix up.



BBD

 

[Sled Puller]

Re: C-Rings

Originally posted by HVAC





Performance Diesel was first to O-ring engines in the frame. .

Really?



Do you have a date?

 

[csutton7]

Sleddy--we did mine back in Feb 2002--that was the first one that we know about-block "O"ringed while still in the the truck is what we're talking about-you guys back east been doing it longer??? We never heard of anyone back east doing it--but 'ell you guys are good at keeping secrets---HVAC had the machine built out here--that's how Piers got it and ????---chris

 

[Johnboy3]

HVAC, the inside of the engine looked really good. I was expecting to see all sorts of bad things, but found nothing. I was trying really hard the night I put it in the shop to pop a head gasket. As mean as I was, nothing gave up. So, I guess I'm just doing preventitive maitenence.

 

[Sled Puller]

Originally posted by csutton7

"O"ringed while still in the the truck is what we're talking about-chris

Ok, I guess HVAC will have to retitle hisself,:



"First TDR member to post about doing 'O"rings while still in the the truck. "



LOL

 

[HVAC]

Johnboy3

QUOTE:



"HVAC, the inside of the engine looked really good. "



Not surprised. Can't beleive how well these diesel engine blocks hold up. Thought for sure I was going to see some damage in my engies too. Not so! It makes for more fun when you realize you are dealing with such sturdy components



Quote:



"So, I guess I'm just doing preventitive maitenence"



I had hoped to get a bore register plate for the PSD engine so I could perform the O-ring machining on the PSD engine. Psycho worked on this also and ran into problems. An O-ring would allow you to venture further up into the stratosphere as far as booost is concerned. Well, 15/20 psi or so anyway



Well, hope we can catch the white Ford when we get back there for the Thunder In Muncie event.