Western Branch Diesel Charleston Wv
There are a few good explanations available on the internet. I found an extended set screw and drilled it for a vacuum fitting. I do have my back and advance hooked up to manifold vacuum under the throttle blades, so Is it OK to have the PCV and the transmission modulator both running to a T off the back of the carb? Re: Where to hook up vac lines on new carb. Also what size is the line from the vacuum modulator? Vacuum modulator transmission vacuum line to carb oil. Guest Riviera1963 Posted July 22, 2013 Share Posted July 22, 2013 So there was a vacuum line off the carburetor that lead down back behind the firewall, unfortunately when I went to go take it wasn't connected to anything down below. What type of intake are you running? I am not sure about the port under the throttle blade, I know that on the Holley there should be a 10-32 set screw above the air bleed screw on the primary metering block. Vac modulator wants manifold vac.
Description: Powerglide. Elderbrock 8096 it's available from summit, kegs, Amazon etc. TH350 Vacuum Modulator Line. Is it OK to put a T on the back so the shift modulator and PCV share the big back port? The big port on the carb is for the pcv from one valve cover.
The transmission modulator vacuum line was cut and replaced with a rubber line from the carburetor to the modulator. What happens to this now with the LS in? The little capped off one is sometimes used for vac accessorizes like vac cruze control or with some cars vac headlights etc. 79 C10 LS swap - What do I do to the vacuum line to the trans. Last edited by 72 Super; 06-21-2016 at 08:33 PM. Look at the documentation that came with your carb. Run which ever one your motor likes. If you run that rubber line down to the the vac modulator on the trans, it will collapse and not give you correct shift points.
Join Date: Nov 2015. You can search it to see a picture and infomation on it. On my 72 I have a 350 with a 750 Holley doubler pumper with a Victor Jr. Intake which does not have a location to use a Vaccum fitting. Join Date: Sep 2007. Either a manifold port on the carb or hooked to a vacuum tree on the intake. Owner installed options: Front Sway Bar. If OTOH you are keeping the Turbo 350 or 400 that you have, you need to hook it up and supply it with manifold vacuum. Vacuum modulator transmission vacuum line to carb cleaner. Description: V8 4 bbl. So I used an 1inch spacer user my carb wth a vacuum port. If you have this particular line, and would like to sell it, please let me know. The other valve cover will have the pcv valve, which should be hooked to the big port on the back of the carb.
Quote: For the vacuum advance line, you want to grab ported vacuum. Does it have s threaded port in the rear where you can add a vaccum port? I need to find a replacement line for this restoration project. It's the same size as the transmission shift modulator so I can't use one of the small ports. I have it capped off at the carb end for now.
I found that OPGI (), however, this fits from 1962 to 1964 Hydromatic transmissions, and this car has the TH400 transmission. Is it even supposed to be down there? It's whay there is a hard line running down there from the factory. I have an Edelbrock performer RPM and it does have the large vacuum port on the back and that's where my transmission line used to go but the Holley carb is in the way of that now. I have my PVC going to the port at te rear of the carb, my PB hose is going to the port on the carb spacer and my turbo 350 modulator vaccum is hooked to small port on passenger side of the carb. Vacuum modulator transmission vacuum line to car rental. The one on the back of the intake goes to the brake booster the one big one on the carb goes to the trans the one little one the right of the carb goes to the dizzy the other little one is usually capped off.
Posts: 1, 248. the one on the valve cover should go into the air cleaner port. Location: Whidbey Island, Washington. I was wondering if the line that was used on the 1964 cars would be the same as the 1965 Limo. Either a stand alone one or hooked to the air cleaner.
Description: Turbo 350. Usually a big cam motor needs manifold vac. No pcv and two breathers makes for a crankcase pressure problem and possible oil leaks. If full vacuum can I just put a tee in the distributor vacuum advance line? Location: Winona Lake, IN. Shafer's Classic Reproductions - Transmission Vacuum Lines. If you run manifold vacuum to the advance, it will work, but part throttle driveability and fuel mileage suffers a little. I have a wanted ad on the site looking for the tee that goes into the back of the carburetor. You need air into the motor to mix with the fumes and drawn out by the pcv. 06-23-2016, 02:45 PM||# 17|. You guys got it all backwards! Like geezer said, if the engine has a healthy cam, it will want manifold vacuum. Thanks for any help. 79 C10 LS swap - What do I do to the vacuum line to the trans?
It should show you where to hook up the valve-cover/pcv hose. The transmission modulator should be hooked to the intake manifold port behind the carb (use the low profile fitting mentioned above), or it can be hooked to the small port below the throttle blades, but that will only leave you with ported vacuum for your vacuum advance. Are you running an air cleaner spacer? Can I just do it this way with a T hooked up to the big port on the back of the carb? It's my first Holley so correct me if I'm wrong on the vacuum advance being plugged in UNDER the throttle blades on the front of the carb too please.
The other valve cover has a breather on it. Can it hook to the carb or doe it have to go to intake manifold? Join Date: Apr 2014. "I ain't nobody, dork. 73 "The Needy Beast".
Description: 350 V8. Location: Colfax California. I ve read where if the line isn t connected that it wears on the transmission. Link to comment Share on other sites More sharing options... Location: calgary alberta. 72 Cheyenne Super (Purchased new by my parents in August of 71) Black and White.