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Expert Tips and Advice

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Timing Theory and Principles Variable Valve

There’s no doubt that engine specialists will begin seeing more variable valve timing (VVT) designed engines in their shops, as the generation of vehicles equipped with this technology begins to make its way into the service industry.  camsprocketVVT  .These camshaft Read more…

By O M, 6 years1 year ago
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Standard and Reverse Rotation Marine Engines – What to Look For

 Standard and Reverse Rotation Marine Engines – What to Look For Boats with twin engines usually turn in opposite direction so the torque reactions of the engines cancel each other out. The following four drawings show how the crankshaft and Read more…

By O M, 7 years1 year ago
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Effects of Sulfur Reduction in Motor Oils

The reduction of sulfur in diesel fuel, gasoline and motor oil has had measurable effects on fuel injectors and other vital engine parts. Add to that restrictions on additives like ­ZincDialkylDithioPhosphate(ZDDP), and it seems like the whole world of fuels and Read more…

By O M, 7 years1 year ago
Uncategorized

The universal engine oil is expected to die in 2016.

  Diesel, gasoline and natural gas engine oils are going to be changing by 2016. With the current regulatory emphasis on improving fuel economy, which also reduces greenhouse gas (GHG) emissions, engine oil scientists will soon be reformulating all three oils Read more…

By O M, 7 years1 year ago
Uncategorized

Common Causes of Water Pump Failure

1. Failure Symptom: Seal Leakage-Dirty System Evidence of seal leakage from weep hole  – This pump has been in service only a short time before rusty-looking coolant began to leak out of the weep hole, leaving behind large deposits of Read more…

By O M, 8 years1 year ago
Uncategorized

Motor Oil Fact or Fiction

1. Synthetic motor oil is too slippery. It causes roller bearings to slide instead of roll, and that causes the bearings to fail. Fact or Fiction? – Fiction If you have ever flown on a jet airplane, you have enough Read more…

By O M, 8 years1 year ago
Uncategorized

Phaser-Style Variable Valve Timing System Controls and Operation

Vehicles with variable valve timing (VVT) have become commonplace over the last decade. Even more commonplace are engines that use a phaser to manipulate camshaft position and, hence, valve timing. The phaser style of VVT is the focus of this Read more…

By O M, 8 years1 year ago
Uncategorized

Camshaft Failure Reasons and Causes

Cam failure is rarely caused by the cam itself. The only things that can be controlled during manufacture pertaining to cam lobe wear are lobe taper, lobe hardness and surface finish.   Of all the damaged cams that Mayor`s has checked Read more…

By O M, 8 years1 year ago
Uncategorized

Three Important Elements Around the Top Corner of a Piston

On forced induction and on nitrous applications, which experience extreme shock loads, Mayor`s says they move the top ring down from the piston crown to around .300˝. However, depending upon valve configuration and the positioning of the valve reliefs, the Read more…

By O M, 8 years1 year ago
Uncategorized

Machining an Engine Block

If you’re fortunate enough to have more than one engine block to choose for machining an if you haven’t yet purchased one, here are some obvious things to look for.First, Before machining an engine block you want to look for cracks Read more…

By O M, 8 years1 year ago

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