Mailbag: Low Oil Pressure and How it Affects Your Engine Bearings
Q: I was wondering if you could answer a few questions for me: Could low oil pressure (15-20 psi) spin a main bearing or otherwise ruin an engine? How can you […]
Mailbag: Could Your Engine’s Power Loss Be a Sign of a Poor Cooling System?
Q: I own a Chevy Impala with a 468-cubic-inch big block Chevy engine. It has 12:1 compression, Crane 298-degree duration cam, oval port cylinder heads, 926 cfm Holley double pumper […]
Ask Away! with Jeff Smith: What’s Causing Excessive Oil Consumption in My Engine?
I’m having a problem with the small block 383 in my Impala. The engine was new about two years ago, but I keep having problems with the spark plugs loading up […]
Mailbag: Troubleshooting and Tuning a Holley 1850 Carburetor
Q: I have a 355-cubic-inch small block Chevy. The carburetor is a Holley 1850, 600 cfm with manual choke and vacuum secondaries. My problem is, the secondaries won’t open at any […]
Mailbag: How to Calculate Brake Pedal Ratio and Master Cylinder Size
Q: I’m putting together a disc brake system for a custom build. What can you tell me about setting up brake pedal ratio for optimum performance? Also, what can you tell me about […]
Ask Away! with Jeff Smith: 8.2 or 8.5 — How to Identify GM 10-Bolt Rear-Ends
I purchased a ’68 Camaro basket case along with a pile of parts including what appears to be a 10-bolt rear-end that was not under the car. How do I […]
Mailbag: How to Read the Timing Marks on Small Block Ford Balancers
Q: I’ve purchased a new harmonic balancer for the small block in my 1965 Mustang. There are three separate sets of degree marks on the balancer. Which should I use to […]
Mailbag: Tips for Changing Valve Seals Without Removing the Cylinder Heads
Q: I’m changing the valve seals on my 1973 Camaro. The cylinder heads are on the engine, and the engine is in the car. I’m using compressed air to hold the valves […]
Ask Away! with Jeff Smith: Troubleshooting and Tuning a FAST EZ-EFI Fuel Injection System
I recently bought an EZ-EFI throttle body fuel injection system from FAST for my ’70 Buick Skylark. I installed it according to the instructions and it started and ran pretty […]
Mailbag: Diagnosing Erratic Tachometer Readings
Q: I recently installed a shift light tachometer into my 1969 Chevy C10 2WD pickup with a 250-cubic-inch 6-cylinder engine. The engine has an HEI distributor. Even though I followed […]