Tag: Howto

5 Reasons Why Your Stromberg Carburetor Leaks And Runs Poorly – @IrontrapGarage

5 Reasons Why Your Stromberg Carburetor Leaks And Runs Poorly – @IrontrapGarage

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Recently we have spent a lot of time rebuilding Stromberg carburetors for a few of the projects currently in the shop. While rebuilding them Steve and Matt found a few common issues that were found in the majority of the carbs. Matt decided to put together a video covering the common issues we found as a part of our hot rodding 101 series. Be sure to comment below if you have any other issues you seem to find with every Stromberg!

Improve Classic Car Braking (and Safety) With a Disc Brake and Dual-Circuit System Conversion – Jim Smart @Hemmings

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The relationship we have with our classic cars tends to be a love/hate affair. We love the styling and the nostalgia of cool American iron from more than a half-century ago. However, suspension and braking systems are below par when you consider what’s sitting on showroom floors today. Drum brakes have their place, and obviously this arrangement is appropriate on a concours-restored show car where originality and show judging are paramount. However, if you drive your classic on a regular basis, maximizing your own safety and the safety of others depends upon getting your braking system up to date.

There was a time when you had to rummage through salvage yards to find a suitable disc brake package. These days, there’s a wealth of new disc brake kits for a wide variety of classic cars, from the Model T all the way up through the cars of the mid-20th century. Your decision should be based on what meets your personal needs and tastes. If your classic ride is a completely stock example, all you need are OEM-style front disc brakes, a dual-circuit master cylinder, new brake lines, and rear drum brakes.

Drum brakes have long been the mainstay of automotive braking systems. They perform quite well in rear axle positions yet are prone to fade when they get hot. When they get wet, friction is compromised and drum brakes can become unsafe. They also tend to lock up during hard braking.

If you have a performance-oriented model, or you’d just like a measure of braking performance beyond what the factory offered, the aftermarket may be able to assist. You may be surprised by the breadth of applications covered today, for both front and rear disc brakes.

Particularly important is the decision to convert your single-circuit hydraulic braking system to a dual system, meaning two separate circuits for the hydraulics fore and aft. American cars had single-circuit hydraulic braking systems prior to the 1967 model year, when dual braking systems became federally mandated. A dual-circuit braking system includes a two-chamber master cylinder, split between front and rear systems. The purpose of this is to maintain partial braking should there be a hydraulic system failure somewhere —a single leak should then affect only one circuit, not both as it does with a single-type system. In factory dual-circuit systems there is usually a pressure differential valve of some sort and a warning light to let you know you’ve lost either system. The pressure differential valve used on many vehicles has an internal “shuttle” valve that must be recentered once the trouble is corrected to turn the warning light out and enable proper bleeding of the system.

The humble drum brake is little more than C-shaped shoes/linings within a rotating drum. Because the front brakes do most of the work, the rear drums are there more as a backup for the fronts

Why opt for disc brakes? Drum brakes are prone to fading under hard use and, when wet, will often become seriously compromised. Disc brakes, on the other hand, are very effective stoppers.

They provide excellent braking force but are also more effective at dissipating heat, enabling them to endure severe use with good resistance to brake fade —the compromise in friction that occurs when the braking components become overheated. Even a front disc/rear drum system, with the split circuitry of a dual system, can offer a substantial improvement in braking performance and safety.

Most mainstream classic cars need little more than these cast-iron caliper, OEM-style disc brakes, and having them only in the front is usually a sufficient upgrade for normal driving. This is a Kelsey-Hayes four-piston front disc brake on a classic Mustang.

When you’re considering a disc brake upgrade, first determine if your car was ever available with disc brakes; if you determine it was not, investigate further to see if a system from a later version of your model offered discs. For example, a 1963 Plymouth was not offered with front disc brakes, but the parts from the right 1973 Plymouth could be adapted.

Of course, the aftermarket can simplify that process by providing whatever you might need for a disc conversion in kit form, eliminating the need to search out vintage parts from a salvage yard and the guesswork that can be involved in attempting to merge those items with your car. If you go this route, bear in mind that brake pad friction materials should be chosen based on the kind of driving you’re going to do. The daily commute or weekend getaway doesn’t call for hard friction materials designed for racing.

For a long time, six-cylinder Falcon, Comet, and Mustang owners couldn’t get front disc brakes. Only V-8 cars were available with them, and those models used five-lug wheels as opposed to the four-lug hubs found on six-cylinder models. However, given the intense demand in more recent years from six-cylinder owners, aftermarket companies answered the call with disc brake conversions for the inline-powered models. This example from SSBC-USA is a simple bolt-on kit you can install in a day.

BRAKE FRICTION MATERIALS

Some years ago, asbestos was commonly used in brake shoes and pads, but when the health risks became clear, the material was phased out. When working on a vintage car, use caution with unknown friction materials —the brake shoes on a 50-year-old car may well be old enough to contain asbestos.

These days, we have three basic types of brake friction materials: Non-asbestos organic, semi-metallic, or ceramic for high-performance driving. Non-asbestos organic compounds are the most common type of brake friction material and are made from bonded organic fibers that retain shape by a resin or glue. Organic brake linings are made from a combination of several proven plant-derived fibers. Non-asbestos linings have a small amount of metallic content in them, typically brass to dissipate heat while contributing to abrasiveness (friction) for better stopping.

Affordable OEM-style disc brake kits are available for Ford, GM, Chrysler, and AMC classics from SSBC-USA (pictured here), CPP, Brake Performance, and LEED Brakes. They yield a factory-original appearance and will improve braking performance.

Read on

Which Wire-Splicing Method Is the Strongest? – Daniel Strohl @Hemmings

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Splicing wires doesn’t seem like it should be rocket science. Touch one bare wire to another, make ’em stay together, and you’re off joyriding in your uncle’s hot rod at 3:00 a.m. But as it turns out, splicing wires can be rocket science, with even NASA formulating standards for how to securely and safely make these connections. Nevertheless, gearheads continue to employ a variety of different wire-splicing methods, insisting theirs is the strongest or the most conductive or the most resilient. So let’s semi-scientifically determine which is the best.

For this test, I’m considering just straight splices—wire to wire—and not any sort of tap, crimp, or plug-in connectors. (Splice versus crimp is a discussion for another day.) I’m also looking at low-voltage automotive wiring, not household or small appliance wiring, and focusing on the splice, not any covering like heat-shrink tubing or electrical tape. While many kinds of splices exist, I’ve narrowed down the test methods to four, all of which are commonly used in auto repairs. I’ll evaluate each on the tensile strength of its mechanical and soldered connections, and I’ll make a note of other attributes, including aesthetics and how the splice affects the wiring itself, all of which is 20- to 22-gauge and comes from my Nissan Leaf’s harness.

Let’s introduce the splices:

Rattail Splice

Instructions: Strip a half-inch to an inch of insulation from both wires. Give each wire’s strands a light twist to keep them from splaying. Lay the wires parallel with the bare ends side by side. Twist the exposed strands together

Wire Color: white

This is the simplest splice, typically capped with an orange wire nut and shoved behind a dashboard. We’ve also seen it referred to as a Pigtail Splice, but aren’t pigtails curled?

Palm Frond Splice

Instructions: Strip a half-inch to an inch of insulation from both wires. Splay each wire’s strands into the shape of a palm frond. Lay one set of splayed strands atop the other. Twist the strands together.

Wire Color: yellow

Also referred to as a Wedding Splice, this method provides many points of contact between the individual strands.

Lineman’s Splice

Instructions: Strip one to two inches of insulation from both wires. Cross the bare strands about a third of the way up. Wrap each bare wire around the other at least three times.

Wire Color: orange

Originally developed for Western Union telegraph lines, the Lineman’s Splice is designed to withstand a lot of tension, and NASA later specified the splice in its technical standards.

J-Hook Splice

Instructions: Strip one to two inches of insulation from both wires. Bend each section into a J shape and hook the wires together. Wrap the tail end of each bare wire around the trunk.

Wire color: red

I’ve discussed this splice before. It’s supposedly the strongest mechanical connection of any wire-to-wire splice. Let’s see if it holds up.

Read on

Palm Rattail Splice

How to: Ford Model A motor (engine)- Pistons and Rods: Assemble and Install – Paul Shinn

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By popular request- How to assemble a Ford Model A motor (“engine” for you sticklers) and I also reveal my “secret weapon”, Willie Baechler from Baechler Machine Shop in San Andreas, California. 209-754-4646 is the telephone number if you want a Model A motor properly rebuilt. He is the BEST! Period. Shop address- 730 Industrial Way San Andreas, CA 95249. Next video in this series, I’ll show how to install the valves, cam, adjust valves, etc.

12 essential automotive chemicals for your garage | DIY – Kyle Smith @Hagerty

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I remember the days when you only needed a roll of duct tape and a lubricant in your toolbox. These days there are so many automotive chemicals it can make your head spin. Lubricants, penetrants, cleaners, adhesives; where do you start? In this DIY, Kyle Smith breaks down what he thinks are the essential chemicals you should always have handy in your garage. #DIY#KyleSmith#NeverStopDriving

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  • Contents of this Video:
  • 0:00​ Intro
  • 0:47​ Multi-Purpose Grease
  • 1:22​ Threadlocker
  • 2:13​ Dielectric Grease
  • 2:52​ WD-40 & PB Blaster
  • 4:09​ Starting Fluid
  • 4:59​ White Lithium Grease
  • 5:38​ Carb Cleaner
  • 6:20​ SEM Solve (Paint Prep)
  • 7:10​ Brake Clean
  • 7:56​ Engine Degreaser
  • 8:32​ Glass Cleaner
  • 9:16​ Interior Cleaner
  • 9:37​ Outro

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Avoiding a Broken Model A Ford Water Neck – tb33anda3rd @HAMB

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Good discussion from the HAMB on the dangers of tightening the water neck on the Model A Ford without breaking it!

I have seen and broken my share of water necks in the past and had resorted to gently hand tightening the necks. i recently bought a water neck from Brattons and it came with this “trick” to avoid breaking them. i did not have any old paper matches but used a couple strips of cardboard, cut from a the backer of a note pad. the trick makes sense as it loads the out side of the ear instead of trying to snap it off. such a simple solution and it worked.
just wanted to pass it on.

Noisy Speedo Sounded Like Something More Serious

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Took the Sport Coupe for a Sunday run, and about 5 minutes in there was a loud noise consistent with a transmission issue.

Investigation

Got the car back to base, jacked it up and put it on stands. Once safely in the air I drove the car in first and second gears, and the noise seemed to be coming from the speedo area. Another symptom was the jerky operation of the rolling Stewart Warner speedo display.

The power to the car was switched off , speedo cable was disconnected and the dash assembly removed and taken to the bench. You can the reproduction chrome dash in this slideshow

The speedo and other items were removed from the current dash assembly as the opportunity was taken to replace the repop dash with an original heavily patina’d item obtained from an auction in Holland.

The speedo was extremely notchy in operation so some 3 in 1 oil was applied to the gears and the speed spun over a number of times. This seemed to do the trick, but until the car is driven again it will be hard to tell.

OEM dash

All the items were moved into the new (old) dash assembly including a new repop script ammeter, which was a terrible fit requiring two cardboard shims to be made for a tight fit. The dash was then refitted and the lamp, ammeter and ignition switch all tested after switching the power back on.

The car was once again run up on the jack stands and the noise had disappeared. Once the testing was finished the car was lowered and road tested, again the noise was no longer apparent and the speedo operation was smooth. Happy all round with the easy fix and the original dash in place

Tune Up for the 1929 Model A Sport Coupe

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As it looks as if the car show circuit will begin to slowly open up in 2021, it was about time to give the Sport Coupe a bit of a tune up. Plus some pinking/detonation had been present under heavy load on the last few times out.

First task was to break out the tools to make life a bit easier.

1/ NuRex timing wrench

2/ D&B Quick Point Gap Setter

First off the points gap was checked and found to be within specification

Please note these are the “modern points” however the tool works on both types of contact breakers. Prior to adjusting the points they were given a quick clean with some emery cloth, the distributor cam was lubricated and few drops of oil added to the distributor oiler.

The NuRex wrench was then used to set the timing, following the clear and simple instructions on the tool

The instructions state to have the spark lever all the way up, this works better for me with the lever one click down. They also state to make two turns, however I’ve always found that one usually does the job. You’ll need to see if either of these suggestions work for you as results will vary from vehicle to vehicle and may be better to use settings on the tool first time out

As you can see the result was a very pleasing idle with good power on road test afterwards, will need to see if the detonation issue is cured.

What you need to know about brake fluid before the next time you bleed your brakes – Daniel Strohl @Hemmings

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In everyday driving, you probably think about bleeding your car’s brakes about as often as you wonder whether you’ve adequately arranged your sock drawer. Even though you ultimately place a great deal of faith in brake fluid to do its job without fail day in and day out, it routinely goes overlooked even during normal maintenance.

On the other hand, you’ve probably driven a car with a soft brake pedal or a pedal that dropped straight to the floorboard and suddenly found yourself unable to think of anything but brake fluid, as the stop sign and the brake lights ahead of you grew increasingly close increasingly fast.

It typically happens about half of the way home when picking up a new project vehicle, and leads you to wonder why you even dared to think you could fix up that rusty heap, a car that probably reached that state of dilapidation long after somebody else stopped thinking about its brake fluid altogether.Indeed, brake fluid bleeding is far from the sexiest task.

It doesn’t add horsepower, it doesn’t make the car any more attractive, and the best result you can hope for is that the car will stop as it was designed to, no better. On the other hand, just like insuring your car, it’s a necessary task. It’s also less of a convoluted or labor-intensive task than many people fear it to be.

1. Need To Bleed?

A spongy or ineffective brake pedal is usually the first indicator that something’s wrong with your brake system, and the causes behind that one symptom can range from rusted brake lines, to cracked flexible brake lines, to worn cylinders or seals in the calipers or wheel cylinders. Generally, you can count on finding some part of the normally sealed brake system admitting air, which compresses while fluid doesn’t. So bleeding – or flushing the brake fluid system – is necessary to get out all of that trapped air, but it’s also something that should be done on a regular basis to replace degraded fluid with reduced effectiveness. Your car’s user manual likely recommends bleeding every two to three years.

Read on