Vacuum Modulator Transmission Vacuum Line To Carb Assembly

July 5, 2024, 8:49 am
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. Well, some of you do! Link to comment Share on other sites More sharing options... 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. Are you running an air cleaner spacer? I don't have power brakes or anything else to hook up, but the PCV from the valve cover has nowhere to go now. Join Date: Jun 2005. Browse Transmission Vacuum Lines Products. If full vacuum can I just put a tee in the distributor vacuum advance line? The big port on the carb is for the pcv from one valve cover. Owner installed options: Front Sway Bar.

Vacuum Modulator Transmission Vacuum Line To Carb Load

Join Date: Sep 2007. 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. 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. 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?

Vacuum Modulator Transmission Vacuum Line To Carb Hose

72 Cheyenne Super (Purchased new by my parents in August of 71) Black and White. Is it OK to put a T on the back so the shift modulator and PCV share the big back port? Description: Powerglide. 'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. I know this is a little different than your set up, just giving you an idea. 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. Does it have s threaded port in the rear where you can add a vaccum port? TH350 Vacuum Modulator Line.

Vacuum Modulator Transmission Vacuum Line To Carb Ratio

Location: Fort Wayne, Indiana, USA. I was wondering if the line that was used on the 1964 cars would be the same as the 1965 Limo. Description: Turbo 350. It should show you where to hook up the valve-cover/pcv hose. Location: Hyattsville, Maryland. Shafer's Classic Reproductions - Transmission Vacuum Lines. So I just got a new Holley 650 double pumper and it's almost 100% installed. Usually a big cam motor needs manifold vac. Can it hook to the carb or doe it have to go to intake manifold? I found that OPGI (), however, this fits from 1962 to 1964 Hydromatic transmissions, and this car has the TH400 transmission. 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. I found an extended set screw and drilled it for a vacuum fitting. Look at the documentation that came with your carb.

Vacuum Modulator Transmission Vacuum Line To Carb Counter

No pcv and two breathers makes for a crankcase pressure problem and possible oil leaks. So I used an 1inch spacer user my carb wth a vacuum port. 06-23-2016, 02:45 PM||# 17|. That line is how the transmission knows how much load is on the engine, and how it decides when and how to shift. Either a manifold port on the carb or hooked to a vacuum tree on the intake. I ground out a bit of the top of it to clear my Holley 3310 before I put a spacer underneath it. What type of intake are you running? It's the same size as the transmission shift modulator so I can't use one of the small ports. The transmission modulator vacuum line was cut and replaced with a rubber line from the carburetor to the modulator. You guys got it all backwards! Like geezer said, if the engine has a healthy cam, it will want manifold vacuum.

Vacuum Modulator Transmission Vacuum Line To Carb Tool

Secondly, most "experts" suggest using manifold vacuum (under the blades) for distributor advance rather than "ported" vacuum. If you have this particular line, and would like to sell it, please let me know. Location: Winona Lake, IN. I need to find a replacement line for this restoration project. Where can the TH350 vacuum modulator line hook up to on the engine?

Vacuum Modulator Transmission Vacuum Line To Carb Conversion

The little capped off one is sometimes used for vac accessorizes like vac cruze control or with some cars vac headlights etc. 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. Also what size is the line from the vacuum modulator? It's whay there is a hard line running down there from the factory. The other valve cover will have the pcv valve, which should be hooked to the big port on the back of the carb. 73 "The Needy Beast".

Join Date: Apr 2014. If you run manifold vacuum to the advance, it will work, but part throttle driveability and fuel mileage suffers a little. I also used the stock manifold port for my modulator line. I have it capped off at the carb end for now. Without vacuum the transmission will think your foot is 100% on the floor 100% of the time. The Rebuild of Creeping Death after the wreck. Location: Davisburg, Michigan. I ve read where if the line isn t connected that it wears on the transmission. Location: calgary alberta. Quote: For the vacuum advance line, you want to grab ported vacuum. Stockish motors run on either one. Re: Where to hook up vac lines on new carb.