Any advice on installing SSI exchangers

[oscillon]

Hey All,

I'm nearly ready to install some new (to me) SSI heat exchangers on my '66. I was wondering if there is anything I should do to prep surfaces, or if there is any special goop to seal the system up better & etc.

Thanks for the forthcoming insights.

Dan

[304065]

Change all the studs while you are at it.

Use new copper gaskets with copper antiseize

Use Copper-plated M8 x 1.25 SW12 nuts. That is 12mm across the flats

Use an M12 swivel socket. Not a swivel adaptor on a 12mm socket, that's too long. You want the actual socket with a swivel built into it, with a 12" 3/8 ratchet extension to tighten them down. Not an impact socket, that's too fat.

Don't forget the special SSI wrench, this is necessary to get at a couple of the nuts.

You should also use barrel nuts, you will need the long M8 hex driver. Make absolutely certain the stud height is correct or you will end up stripping the internal wrenching feature of the barrel nut. You want the nut to achieve preload before you run out of depth in the internal hex.

Other than that, use the blue wrench to remove all old hardware. Replacing broken studs is a giant pain, even with the engine out.

[flatsixcrazy]

Dan, what a coincidence, I just finished installing a SSI system on a SWB also. It sounds like you already got the old ones off and ready to put the new ones on? As John mentioned in the post above, SSI wrench and copper paste will make your life much easier. You are welcome to my SSI wrench if you need one. Andy

[oscillon]

Andy,

That's exactly right. I am nearly ready to put the new set on (old ones are off). Borrowing your tool would be fantastic as my set didn't come with one. Is there a time this weekend that I might be able to meet up with you to borrow the tool?

I'll also send a PM of this...

Dan

[magnus walker]

before & after..

www.magnuswalker911.com

[oscillon]

before & after..

www.magnuswalker911.com

As always, it looks like a finely polished jewel, top and bottom...

[oscillon]

Change all the studs while you are at it.

Use new copper gaskets with copper antiseize

Use Copper-plated M8 x 1.25 SW12 nuts. That is 12mm across the flats

Use an M12 swivel socket. Not a swivel adaptor on a 12mm socket, that's too long. You want the actual socket with a swivel built into it, with a 12" 3/8 ratchet extension to tighten them down. Not an impact socket, that's too fat.

Don't forget the special SSI wrench, this is necessary to get at a couple of the nuts.

You should also use barrel nuts, you will need the long M8 hex driver. Make absolutely certain the stud height is correct or you will end up stripping the internal wrenching feature of the barrel nut. You want the nut to achieve preload before you run out of depth in the internal hex.

Other than that, use the blue wrench to remove all old hardware. Replacing broken studs is a giant pain, even with the engine out.

Thanks! that is great advice.

[304065]

Magnus, excellent as usual.

Now take it to 11 my friend.

[Bobs 67S]

Oh my,

John does that photo show SSI jet hot coated to a light grey??

[Haasman]

What is the special wrench? I am not familiar with it?

Second, is jet hot coating generally frowned up? Certainly looks clean and much better than the brown/grayed heated pieces I am familiar with.

Haasman