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Turbo Leak 12V71

Brian, thanks for the post. There is a metal gasket between the flanges. Let me know if you need me to find the part number.
 
Shouldn't the clamp be the type with a spring so as to allow expansion when it heats up?
 

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Thanks Robert will get one ordered. Gonna go ahead and pull turbo. Do you know if there is a gasket on the bottom oil line and the number if so? Looks like top oil line (supply?) is inverted flare on mine Bottom May have a flare as well but looked bolted on to me
 
Briankinley2004 said:
Thanks Robert will get one ordered. Gonna go ahead and pull turbo. Do you know if there is a gasket on the bottom oil line and the number if so? Looks like top oil line (supply?) is inverted flare on mine Bottom May have a flare as well but looked bolted on to me
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No gaskets required unless you remove the flanges.
 
After reading the posts about the Sikolene and CAT selling a 3M product that was cheaper I decided to reach out to a friend of mine that works parts at our local CAT dealer. He said 3M no longer makes CAT products and Loctite makes them now. He called his marine division to verify (as they mostly do construction equipment) and the current product they use for this application is Loctite MR2000. He said locally the mechanics use it on exhaust quite often and confirmed the marine mechanics do as well. Since the cost to me was $0 I am going to give it a try. Still waiting on my gaskets from Reliable industries which doesn't seem too reliable at this point. Hopefully they will come through and ship in time for me to get by next Friday.

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Got everything loose and had to cut the bolt on the center band clamp as someone had stripped it out. Where it was located I couldn't even get a pair of pliers on it to turn. So I had ass-u-med that it was the same size clamp as the one on the exhaust flange which I had spares. But no it is a bit larger. So I find I have 3 different size clamps on one turbo. The RG Ray number on this clamp is 00637-560 N which crosses to nothing on an internet search. There is also a 1B4 A-109 stamped on it which also leads to nothing. Does anyone know the replacement clamp part numbers? The turbo model number is CV8101. I went by Reliable Industries in NOLA yesterday after the large one for the intake they sent was too big. They are trying to find the replacement for this clamp but said the existing looks fine. They are closed for the weekend and I guess I am on hold but would like to go ahead and get something ordered if I can find the correct parts. Also had trouble finding Grade 8 manifold bolts in fine thread. Anyone know if regular thread grade 8 will be ok for this application?
 
Briankinley2004 said:
Got everything loose and had to cut the bolt on the center band clamp as someone had stripped it out. Where it was located I couldn't even get a pair of pliers on it to turn. So I had ass-u-med that it was the same size clamp as the one on the exhaust flange which I had spares. But no it is a bit larger. So I find I have 3 different size clamps on one turbo. The RG Ray number on this clamp is 00637-560 N which crosses to nothing on an internet search. There is also a 1B4 A-109 stamped on it which also leads to nothing. Does anyone know the replacement clamp part numbers? The turbo model number is CV8101. I went by Reliable Industries in NOLA yesterday after the large one for the intake they sent was too big. They are trying to find the replacement for this clamp but said the existing looks fine. They are closed for the weekend and I guess I am on hold but would like to go ahead and get something ordered if I can find the correct parts. Also had trouble finding Grade 8 manifold bolts in fine thread. Anyone know if regular thread grade 8 will be ok for this application?
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Brian, I wouldn’t have a problem using coarse thread bolts there. Re-torque after getting to temp. If it leaks, it leaks. Not a lot of trouble replacing those bolts. Caught early the metal gasket will survive. Do your best to have two good mating surfaces and use some sealant.
 
Thanks Robert. I did find some fine thread bolts today. Do you happen to have the part numbers on the clamps. Mine have 3 different sizes
 
Sure don’t. Won’t be on boat until Wednesday or Thursday. Please let us know what you end up with.
 
This clamp search is getting to be like looking for a needle in a haystack. I ordered the one in the link above. It doesn't have a part number. I accidentally shipped it to the address at the boat so I dont have it for comparison. I also ordered the Breeze #VT 10530 and it is a tad smaller. It may be the one on the riser so I can probably use it there. I ordered today the Breeze VT10560 now that I have their numbering figured out. The outside dimension should be very close to the one I have.

I sent the existing clamp numbers to RG Ray/Breeze engineering. They have no way to match the old clamps to their new ones based on numbers. I used my micrometer and sent them the dimensions on my existing clamps. They came back today with a response that they dont have anything meeting these specs. I am hoping that some dimensions changed due to heat and the 10560 works for the inner clamp. On the larger 7 3/4" clamp they dont have anything in that size range. Fortunately for now that one seems ok but I have 4 and one is bound to break at some point. I also called a Marine Exhaust company in Florida that was suggested to me on boat diesel but they dont carry them.

I am thinking of calling these people and see if they can make them. Does anyone have any experience with them?

http://www.clampco.com/products/v-band-made-to-order.asp
 
Also someone posted they replace the bolts in their clamps. Has anyone done this on these V clamps? I am curious how you get a new T bolt in there as it appears the clamp is bent around it. I may could grind the old bolt off but dont see how to get a new one in.
 
Briankinley2004 said:
This clamp search is getting to be like looking for a needle in a haystack. I ordered the one in the link above. It doesn't have a part number. I accidentally shipped it to the address at the boat so I dont have it for comparison. I also ordered the Breeze #VT 10530 and it is a tad smaller. It may be the one on the riser so I can probably use it there. I ordered today the Breeze VT10560 now that I have their numbering figured out. The outside dimension should be very close to the one I have.

I sent the existing clamp numbers to RG Ray/Breeze engineering. They have no way to match the old clamps to their new ones based on numbers. I used my micrometer and sent them the dimensions on my existing clamps. They came back today with a response that they dont have anything meeting these specs. I am hoping that some dimensions changed due to heat and the 10560 works for the inner clamp. On the larger 7 3/4" clamp they dont have anything in that size range. Fortunately for now that one seems ok but I have 4 and one is bound to break at some point. I also called a Marine Exhaust company in Florida that was suggested to me on boat diesel but they dont carry them.

I am thinking of calling these people and see if they can make them. Does anyone have any experience with them?

http://www.clampco.com/products/v-band-made-to-order.asp
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You are overthinking it. I got my clamps (for 8v92) from this site. I'm sure they have what you need, give them a call if you don't see it on the site, helpful people every time I've had to call.

https://dieselpro.com/detroit-diesel-parts/8v92-engine-turbo2/turbos.html
 
I got the 5.75" one from Diesel Pro sent down to the boat and it might work for the center clamp but the intake one is over 7" in diameter. I have yet to find anyone with between 7-8". I will call diesel pro and see what they have that may not be on the site. The issue from all these place I have talked to is that every turbo is different. They looked mine up by serial number at one place and ordered based on my turbo type and it was half inch too big. Everyone tells me there are different turbos on 12V71's. Not all use the same. For instance Covingtons may be different than a J&T, etc. It would be great if someone that has replaced these could provide the part numbers for all 3 clamps.
 
Briankinley2004 said:
I got the 5.75" one from Diesel Pro sent down to the boat and it might work for the center clamp but the intake one is over 7" in diameter. I have yet to find anyone with between 7-8". I will call diesel pro and see what they have that may not be on the site. The issue from all these place I have talked to is that every turbo is different. They looked mine up by serial number at one place and ordered based on my turbo type and it was half inch too big. Everyone tells me there are different turbos on 12V71's. Not all use the same. For instance Covingtons may be different than a J&T, etc. It would be great if someone that has replaced these could provide the part numbers for all 3 clamps.
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If I asked my mechanics for clamps, I think their first question would be "what is the model number of my turbo?"

My turbo's are R5101513. I don't think one R5101513 is different from another. If you have the same turbo's, I can inquire regarding the clamps.
 
My turbo Model is CV8101. I cannot get a response from the vendor I gave this information to. They were very helpful at first but will not return emails or texts. I may go back by there next time I am in NOLA if I dont get resolved elsewhere. I did get a response from R G Ray this am that Clampco and 5 Star Smart parts may be able to custom make them. I am waiting on Clampco to return my call from yesterday. The marine Detroit place up the bayou from my boat didn't have them and said he couldn't order. They refer to the turbo mfg which is Air Research which appears to be out of business. They say its not a Detroit part but this tag clearly says Detroit. If I ever find these things Im gonna buy several

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Briankinley2004 said:
My turbo Model is CV8101. I cannot get a response from the vendor I gave this information to. They were very helpful at first but will not return emails or texts. I may go back by there next time I am in NOLA if I dont get resolved elsewhere. I did get a response from R G Ray this am that Clampco and 5 Star Smart parts may be able to custom make them. I am waiting on Clampco to return my call from yesterday. The marine Detroit place up the bayou from my boat didn't have them and said he couldn't order. They refer to the turbo mfg which is Air Research which appears to be out of business. They say its not a Detroit part but this tag clearly says Detroit. If I ever find these things Im gonna buy several

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It's OEM'd to Detroit. Example, my Walker Airseps are labeled Detroit.

Air Research is part of Garrett. I know my turbo's are labeled Garrett, and I know Garrett is in the biz. The last turbo I needed I got from the Detroit dealer, WW Williams, and it was a one for one swap bolt-on. I'd be calling Garrett.
 
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