Are these bolts causing a boost leak?

[EvilTSi_97]

I'm well versed in a good bit of stuff, but turbos aren't my specialty right now. Wanted to get some advice for anyone who knows about the 60 series turbonetics turbos. The shop, who shall go unnamed, installed the turbo and didn't install a few bolts behind the compressor housing. I have heard Turbonetics doesn't use a gasket on the compressor housing back plate.

So how can I go about securing these in there and eliminating the huge boost leak it's causing? I have read people using copper RTV on the ends. Also, with the heat from the manifold/turbo, do I need to use a different type of bolt (i.e not SS)?

Thanks,

Brandon

 

[JusMX141]

You need to have all six bolts and three hold-down plates installed. To me it doesn't even look like you have a single hold-down on the compressor cover, so you're bound to have some boost leaks.

http://www.atpturbo.com/mm5/merchan...&Product_Code=T04S-CLAMPKIT&Category_Code=CLA ; or contact me if you need the hold-down clamps.

 

[EvilTSi_97]

You need to have all six bolts and three hold-down plates installed. To me it doesn't even look like you have a single hold-down on the compressor cover, so you're bound to have some boost leaks.

3 clamps and 6 bolts for T04S housing : atpturbo.com ; or contact me if you need the hold-down clamps.

Thanks a ton for the link man. Things have been crazy for me so I just now placed the order. However, I do want to mention something:

The website ordering had an error or something so I had to call. I cannot say how impressed I am with ATP Turbo's customer service. I spoke with a gal named Linda and she's one of the nicest and most knowledgeable people I've encountered in the turbo world. She even took the time to look at this image and see what we were talking about being missing. Definite thumbs up for these guys!!!!! Will update when parts are installed next week.

 

[EvilTSi_97]

You need to have all six bolts and three hold-down plates installed. To me it doesn't even look like you have a single hold-down on the compressor cover, so you're bound to have some boost leaks.

3 clamps and 6 bolts for T04S housing : atpturbo.com ; or contact me if you need the hold-down clamps.

I got the hardware in the mail from ATP Turbo:

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I peaked behind the manifold and there is one hold down plate installed on the turbo and it's one of the straight/short ones with two bolt holes. Not sure why the shop left the other two off. Which of the clamps should I use?

Also, the clamps don't seem to even touch the back plate, so how do these clamps aid in holding it down VS just the bolts that are in there? Probably a goofy question, but I don't see what their purpose is.

Thanks again!

Brandon

 

[JusMX141]

The two larger clamps are for a T04E cover, the three smaller ones are for a T04S cover. Your turbo uses the S-cover, so you'll need the three smaller clamps as I stated in the second post....they likely sent you both because they didn't know what cover your turbo has.

 

[EvilTSi_97]

The two larger clamps are for a T04E cover, the three smaller ones are for a T04S cover. Your turbo uses the S-cover, so you'll need the three smaller clamps as I stated in the second post....they likely sent you both because they didn't know what cover your turbo has.

Thanks again Justin. Not sure if you saw my question in the above post: The clamps don't seem to even touch the back plate, so how do these clamps aid in holding it down VS just the bolts that are in there? Probably a goofy question, but I don't see what their purpose is.

 

[MY1GDSM]

More Surface contact area to name one... .

 

[EvilTSi_97]

More Surface contact area to name one... .

More surface contact between the compressor housing bolts and the housing itself doesn't seem to effect the back plate. I must be completely missing something here...

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I've attached a drawing with what I'm trying to represent. These clamps do not touch the back plate (black arrow) whatsoever and since they don't...I can't understand how they're helping it stay in place better compared to just having bolts in there. Now, if the clamps were nice and wide in the middle sections putting surface area (and as a result downforce) on the back plate...that makes sense. However, these clamps aren't helping to "push" the back plate in anymore than the bolts. What am I missing here?

Thanks,

Brandon

 

[JusMX141]

You're apparently missing the split between the seal plate and cover directly beneath your blue line.