When did GM start using roller cams in engines?
When did GM start using roller cams in engines?
Starting in 1988, GM began using a hydraulic roller cam in their production car engines. This required a cam thrust plate on the front of the block. The step in the nose of this cam (left) identifies it as a cam intended for use in a production roller cam block.
Do you need hydraulic roller lifters for roller cams?
Taller hydraulic roller lifters also mean shorter-length pushrods for roller cam engines compared to either flat tappet or mechanical roller cams. If you are planning on using a mechanical fuel pump with a steel roller cam, you also need a special fuel pump pushrod.
What’s the best way to Prime a roller camshaft?
Prime the pump before firing the engine. This ensures a critical supply of oil to the cam and lifters at initial start-up. Do not idle the engine. Bring the engine up to 2,500 rpm and vary the speed by a few hundred rpm for 20-30 minutes.
When to change the oil in a roller camshaft?
Change the oil and filter after initial break-in. Most of the wear metals created by an engine occur during the first hour of operation. By properly breaking in your roller camshaft, you’ll ensure maximum performance and long life. Author: David Fuller David Fuller is OnAllCylinders’ managing editor.
Change the oil and filter after initial break-in. Most of the wear metals created by an engine occur during the first hour of operation. By properly breaking in your roller camshaft, you’ll ensure maximum performance and long life. Author: David Fuller David Fuller is OnAllCylinders’ managing editor.
Prime the pump before firing the engine. This ensures a critical supply of oil to the cam and lifters at initial start-up. Do not idle the engine. Bring the engine up to 2,500 rpm and vary the speed by a few hundred rpm for 20-30 minutes.
How does a roller cam engine engine work?
A standard cam is ground in a way that causes the lifters to rotate during operation to minimize wear. This design causes the cam stay in place by itself as the engine turns. The roller cam design does operation. gear from damaging the block.
Where can I Buy GM performance motor camshafts?
Camshafts: GM Performance Motor ACCOUNTCONTACTMY CART Business Account Information **Due to the COVID-19 pandemic a large number of products are on backorder and shipping times are longer then usual.** Free Shipping for Engines & Transmissions*— Learn More 0
