chasing a hunting problem - could use some intake boot pics

garment · garment's Garage

Hi Pelicans - I could use some pictures of the intake boot for a CIS engine (mine's an '83) while connected to the engine.

I am going to replace the boot/pope's hat as I know there is a hairline crack in the existing one. Since I am working with the engine in place, it would be great to get some pics of the engine out of the car, with all the hoses hooked up to the boot, so as I am working blind I can have a reference. Bentley has one pic on page 200-8, and there's many threads like this one, but I haven't been able to find a good close up of all the connections. Anybody got one?

Thanks, Pelicans!

Speed Buggy · Speed Buggy's Garage

My CIS is on the bench not hooked up yet. Sorry.

jason2guy · 04-06-2015, 04:08 PM

theres only two. 1 on the right, behind the FD. 1 by the throttle body, on this one the clamp isnt visible. so get a short screwdriver and feel it out

Smoove1010 · Smoove1010's Garage

Here's what I do: open Google, paste this into the search box: "SC engine drop site http://forums.pelicanparts.com/porsche-911-technical-forum"

...and in the Google toolbar click "images." One of those has got to be helpful.

Good luck!
GK

Walt Fricke · 04-06-2015, 05:05 PM

Ah - your mean the ribbed thing which connects the two sides of the intake air flow?

As a temporary measure you can just put duct or other sticky tape over the crack. You can run for thousands and thousands of miles with that in place.

I think there are but two. The right hand connection goes to one of the air CIS gizmos - the dashpot-like smaller one on the right rear side which leans deceleration, and Ys to the AAR. The one more to the left comes from the oil tank, and serves as its breather? Hoses for both are held on with hose clamps. But aluminum fittings press into the boot.

Since you are going to replace the boot, you could pull these fittings out, and later decide if you want to disconnect the hoses, reinsert the fittings into the new boot, and then tighten the hose clamps. Or if you can insert the assembly into the new, and presumably suppler, boot.

For that matter, since you are replacing this boot, you can cut it up as much as makes removal easier.

But a google search might show up a picture. This is not complicated, and you can't screw it up.

Walt Fricke · 04-06-2015, 05:06 PM

Pope's hat???

Walt Fricke · 04-06-2015, 05:39 PM

Joe Bob · Joe Bob's Garage

Use Kwik Start/Ether. Spray at suspect areas (lightly), while engine running.....rpms change....bingo, Bob's yer Uncle.

Walt Fricke · 04-06-2015, 06:04 PM

I like a rubber hose over a propane torch with the nozzle bit removed. Easy to control, and you can get the gas right next to the suspects usually.

T77911S · 04-07-2015, 02:38 AM

Quote:

Originally Posted by Walt Fricke

Pope's hat???

have heard it called the "turtle" but this one is new.

i was thinking it was something hard like the rubber boots on the intake runners.
this thing is not a big deal. it can be a little hard to work the boot over the AFM/TB but other than that its not that hard.
the hose to the oil tank has a flame trap in it. clean it.

hunting is due to being too rich,