Gauge hook-up questions

Gauge hook-up questions

Originally posted by Stang So the vacuum will not stay constant at idle, it will bounce a few lbs. A healthy, stock engine’s vacuum gauge will remain rock-steady at idle. As far as tests with a vacuum gauge, where do I begin The vacuum that is created in a normaly aspirated engine one that is not blown or turboed gives you a great tool for diagnosing engine problems. Just about any internal engine problem can be identified with a vacuum gauge!!! I’ll teach you some of the basics:

Force Gauge / Digital Force Gauge

PCE digital force gauge devices provide measurements in kilograms kg , grams g , ounces oz , pounds lbs and Newtons N of force f , depending on the force gauge model. Most PCE digital force gauge products are handheld, portable devices that also can be used with a universal test stand. There are several different force gauge products available online in the PCE web shop.

We recommend your vacuum gauge be located where the driver can safely monitor during a run down the track. Engine Vacuum is a great way to monitor how your engine is performing. If vacuum is not within specs on your sheet, you can adjust by following these simple

Most manufacturers do not offer instructions for refrigerant servicing small refrigeration units that incorporate capillary tube refrigerant expansion devices because correct charge is different and critical for each design. The fan should come on and a few seconds later the compressor should start. When the compressor starts, the suction pressure gauge blue reading will go down. When the gauge reading approaches zero, open the service manifold valve briefly to allow more refrigerant vapor to enter the system.

Keep regulating the valve to try to maintain about 10 psig on the gauge. Add refrigerant slowly a few seconds at a time and allow the pressure to stabilize before adding more. Only add refrigerant when the pressure is below 10 psig. Allow the system to run until the thermostat turns it off.


All parts used in these pictorials are available at the diesel parts for sale page Mercedes Vacuum Troubleshooting Basics Vacuum, vacuum everywhere, or you wished it was. To many owners of the older Mercedes diesel cars, the vacuum system continues to be an amazing mystery. Full of weird components and even weirder operation of all kinds of stuff on the car. Well I am here to tell you today, it is not that complicated and mysterious.

 · I have a 94 gmc truck with a TBI Where do I hook up the vacuum gauge to get the best readings. Will the Vacuum booster be good enuff? Thanks /vacuum-gauge-hook-up.

Diagnose Fuel Gauge Copyright AA1Car Nothing is more aggravating than a fuel gauge that doesn’t give an accurate reading, especially when the gauge shows there’s still fuel in the tank when there really is not. Faulty readings can be caused by a bad sending unit, a problem with the gauge, or shorts, opens or weak connections in the wiring that links the two together.

But which one is it? In , the first float arm gas gauge appeared. A float mounted on a hinged arm moved a mechanical pointer on gauge on the outside of the fuel tank to indicate the fuel level. The idea was taken one step further when vehicles started to get better electrical systems by connecting the hinged float arm to a rheostat. This allows an electrically operated fuel gauge to be mounted in the vehicle’s dashboard.

And that’s the basic operating principle that is still in use today. There are essentially three types of fuel gauges: The amount of current flowing through the gauge heats up the bimetal strip. The strip expands and determines how far the needle moves.

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The low pressure gauge or compound gauge is color coded blue and the high pressure gauges are color coded red. The AC gauge hoses are color coded in blue, yellow, and red. The AC gauge hoses port are not color coded, but the hose is color coded. The blue hoses are used to connect the manifold to the low pressure side central air units suction line. Some manufacturers even color code the hand valves. The manifold gauge uses flexible hoses with connector on both sides.

Where do i hook up a vacuum gauge – How to get a good man. It is not easy for women to find a good man, and to be honest it is not easy for a man to find a good woman. Is the number one destination for online dating with more relationships than any other dating or personals

That can be either manifold vacuum or “ported” vacuum. The only difference is that ported goes to zero at idle, and is identical to manifold otherwise. Ported vacuum always comes from the base of your carburetor, but not every carburetor vacuum port is ported vacuum. Tee into the distributor line and look at your vacuum readings. It should be easy to tell the difference between manifold and ported.

If you have no manifold vacuum port, remove one of the plugs in your intake manifold and replace it with a suitable brass barbed fitting any hardware store will have this. Then use that port for testing, and cover it with a vacuum cap when finished. You can use the PCV line for testing – just tee into it near the carburetor – but I would install a fitting and then have a test port always available.

Vacuum Pumps: Why use them & what do they do?

I’m not sure if that matters at idle or not. The oil filler cap has a breather so crankcase pressure shouldn’t be an issue right? Spork Yes it is totally okay to connect a vacuum gauge to the pcv port.

 · Im trying to hook up a vacuum gauge to my 94 CID V8. it has a threaded end. where do i hook it up to? – Answered by a verified Chevy Mechanic Im trying to hook up a vacuum gauge to my 94 CID V8. it has a threaded end. where do i hook it up to? Show More. Heat gauge looks OK. A hose from the vacuum reservoir came loose at the other

The key is understanding what your gauge is trying to tell you. You can hook a tee-fitting into an existing vacuum source or pull a line, such as one that leads to your transmission. Check to make sure all vacuum hoses are connected and not leaking. Normal This a normal reading—between 17 and 22 inches of mercury. Higher elevations may cause slightly lower readings.

For every 1, feet above sea level, you can expect the reading to be about one inch lower. You can also expect the readings to be lower for more aggressive cams. This means the engine is producing less power and, therefore, less vacuum. Common causes of steady low reading are blowby due to worn piston rings or possibly late ignition or valve timing.

An extremely low reading could also indicate an air leak at the intake manifold or throttle body. Rapid Vibration at Idle If the needle vibrates rapidly between 14 and 20 inches of mercury, but then steadies as rpm increases, you may be dealing with worn valve guides. How fast the needle vibrates is telling of how many valve guides may be worn. The swing on the gauge is usually anywhere from 10 to 22 inches of mercury, depending on the speed of the engine. Drastic Needle Drop With exhaust restriction, the vacuum gauge will often start in the normal range but will soon drop drastically as rpm is increased.

Vacuum Equipment and Process Tips

Thu, 9 Aug Hello, I was reading your nice website and found it very interesting. I am wondering where I should attach the high vacuum pump to evacuate the system. This is something I can’t seem to find out about. I would imagine it goes to the low pressure side, where the refrigerant goes in? Should the car be running for this? I guess the compressor clutch won’t engage because of no pressure, so the engine can be left off?

First, you need to decide the maximum boost pressure you plan to run. If, for example, you expect to run no more than Bar ( psi), a gauge that reads up to Bar ( psi) is perfect – it’s good to have a little bit of headroom so you can recognise overboost ?&title=Basic-HandsOn-How-to-Fit.

A look at Volvo in-tank fuel pump and fuel gauge sender issues. These notes generally apply to through normally aspirated and turbo wagons and sedans, taken from my family fleet experiences with the following: I have only book knowledge of those years, so this page may not be helpful. Volvo k-jet manual tank pump pages Speaking of book knowledge… It never hurts to carefully read what the manufacturers said about their product. Volvo factory manuals green books describe the transfer or tank pump in Group The Haynes series on often treats us to photos of real sometimes dirty and rusty cars and evidence someone actually performed the steps indicated, in contrast with the factory literature which is often prepared before the first models even hit the showrooms.

My late edition Haynes describes the pump replacement in Chapter 4 part A. This is no shortcut past purchasing a repair manual. Working in the fuel system is not the next skill level step after do-it-yourself oil changes and brake pads. Revisions and Corrections December Additional information on failure modes of aftermarket pumps, sender, and seal, with images. Correction to diagnostics of early 80’s wiring. Added pics of correctly wired senders.

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Everything you need to install a standard active sub-slab depressurization ASD system is in one box, except for the PVC pipe and electrical hook up parts that can be obtained locally. See the Radon Fan Guide page to learn how to select your fan or for performance specifications, a replacement guide, and fan features. We use these fans with either 3″ or 4″ PVC pipe ASD systems, and we provide kits that connect this fan with 3″ openings to both pipe diameters.

Fan performance , Fan dimensions , Installation drawings , Installation instructions , System photos , Online Order or call

Did you kickdown levers on properly setting up and connect the intake is a turbo automatic transmission to last ten or mechanical. Voes hookup that will hook to last ten or the vacuum modulator hook up read more modulator connecting/transfer point. Description: there a th; and i have a vacuum

I found alot of helpful tips and designs. Ultimately I settled on components from several different designs. My design is by no means perfect, but it gets the job done, and was fairly cheap to build. It is capable of forming a piece 33″ x 22″. Add Tip Ask Question Step 1: Basic Box I started with a basic five sided wood box out of half inch particle board. This will be the infrared “oven”.

Thats pretty straight forward. Add Tip Ask Question Step 2: Heat Source also Keeps Your French Fries Warm As I said, I researched many different designs before I started and found that I preferred the infrared lamp as my heat source because, well frankly, I thought I’d burn my house down if I tried to build my own heating element. I even considered buying three electric pancake griddles, bolting them side by side into a box, and placing that over the plastic sheet.

I tried it with one griddle and it worked pretty well, though my wife was not pleased with me disappearing into the garage with it. I used a total of ten infrared heat lamps that you can purchase at any hardware store. There are four watt bulbs, six watt bulbs, and one watt patio heater.

One more step

A good basic tool that gets the job done. The idle air flow is balanced first. The Uni-Syn is adjusted so that the ball rises about half way up the tube. By adjusting the idle speed screws the idle speed is maintained about RPM and the flow is adjusted so that the ball raises the same on both carbs. Once the idle air flow is balanced the service screw is used to raise the engine speed to RPM.

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Does it matter if I hook it up at all? Most of the other transmissions used a mechanical linkage or cable to indicate wide-open-throttle WOT. This WOT trigger achieves two things: Above a certain speed, as determined by the governor, the transmission will not downshift from third to second or second to first gear. This is to protect the transmission from damage. Instead of a linkage or cable, the TH uses an electrical switch that is most often mounted on the carburetor.

When the linkage hits WOT, this completes the circuit to connect the transmission to full system voltage. This electrical input powers up a solenoid in the transmission that accomplishes the same results, with higher line pressure and a signal to downshift the transmission.

Vacuum Gauge Hose Routing 574

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