Looking for a measurement and/or picture of the A6 intake manifold injector bores.

I'm having trouble with the injector seal rings... the bore & old seal ring is approx. 7mm deep, while the new rings from Honda are 4mm deep. This causes a gap between injector body and seal ring.

The only variable I can think of is the actual bore depth, since the fuel rail side has a set height. All OEM components are installed.

Does someone have a manifold laying around they can take a picture of or just measure the first step in the bore?

Here's what I'm talking about. The injector seal ring should be flush with the top surface. The picture shows the A6 intake manifold with a new injector seal ring from Honda. [Ignore dirt and lack of oil. These are not final install pics.]


The old injector seals that came out of the manifold are 7mm deep, so the injector seal sits flush with the top surface.

Thanks!

 

Yeah man you are right the a6 manifold bungs are twice as deep why not just measure the rubbers orings you removed if u really must?

 

Thanks for the reply. Confirming that the A6 bosses are twice as deep definitely helps!

The seal rings that were installed are 7mm deep.

It's not a question of finding replacement seal rings, I'm trying to figure out why the OEM Honda parts (including fuel rail spacer) don't fit. I can't be 1st one to have this problem.

Injector Seal Ring P/N 16472-P10-A01 <--- this is correct.


Injector body is even with IM surface but gap with the seal. Once torqued, the injector might sit slightly lower, but still with a 3mm gap to the top of the seal ring.

*** This is with a stock fuel rail, new OEM fuel rail spacers and upper injector seals. No modifications from stock. That's why this is so weird. ***

 

Got a call from Honda. Turns out they had a large batch of incorrectly packaged injector seal rings. The correct ones came in, same part number, and they're ~ 7mm thick.

So the A6 manifold bosses are deeper, and the injector seal rings are thicker than any later manifolds. A6 = 7mm thick, all others = 4mm thick.

So now everything makes sense and fits properly.

Thanks for the help guys.

 

atleast they fixed it for ya..