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Not true. I used these breathers with an Arlen Ness backplate.
If that's the case, then your breather bolts weren't being used for the physical attachment and you have something else (bracket) that's holding the carb/TB in the intake manifold.
On a stock A/C, the back-plate holds the carb/TB to the manifold via the breather bolts.
There is no additional bracket aside from the backplate. The breather bolts went through the backplate and then there were three stand-offs that went through the backplate into the TB. That's it.
Here's some pics of the Arlen Ness setup. Just replaced the two banjo bolts going into the head with the DK Breather Bolts.
There is no additional bracket aside from the backplate. The breather bolts went through the backplate and then there were three stand-offs that went through the backplate into the TB. That's it.
Here's some pics of the Arlen Ness setup. Just replaced the two banjo bolts going into the head with the DK Breather Bolts.
Unlike the stock A/C, you have a mounting bracket (that may be part of the back-plate), like I referenced above, that's holding the TB in the intake manifold, you can see the bracket "ear" in the 2nd pic, attached to the left breather bolt. On the stock A/C there is no bracket, the breather bolt itself makes the back-plate mechanical connection.
The word 'Breather' may be a misnomer , probably 99.9% of the air is out, not in. There is a one way poppet (umbrella) valve leading to these exits that has a filter/baffle system.
Last edited by Jackie Paper; Sep 14, 2018 at 11:06 AM.
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