Time-Sert Kit 1812CORE-BS for GM Rocker Arm Bolt Hole Threads

Auto Specialty Tools, Chevrolet, GM Intake, TIME-SERT Kits No Comments

Time-Sert-1812CORE-BS-Kit© DenLorsTools.com  Product announcement for a new Time Sert Kit. The new Time Sert kit PN 1812CORE-BS is for repairing threads that were previously repaired with a competitive brand insert. Vehicles affected are Chevrolet, Oldsmobile and Pontiac’s with 3.1 or 3.4 Liter engines. See the product listing by clicking on the image for more information. Rockers on these cars are held on with one bolt. The heads are aluminum are subject to wear very easily when intake gaskets are being serviced. Heli-Coils may be used, however if their thin coil of wire fails under stress, the cylinder had can still be saved. The Time-Sert 1812CORE BS is an over sized (Time-Sert call it Big Sert) repair that can save the cylinder head if there’s a repeat failure from Heli-Coil.

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GM 2.8, 3.1 & 3.4 Stripped Threads – TIME-SERT 1812CORE

Chevrolet, GM Intake, How To Auto Repair, TIME-SERT Kits 3 Comments

GM_Rocker_Arm_Fallen_ArticleDenLorsTools.com Summary: Suggestions on how to properly repair stripped threads for rocker arm bolts in cylinder heads. Tools for repairing rocker arm bolt holes for gm 2.8, 3.1 and 3.4’s. Affected engines in GM vehicles are 2.8, 3.1 and 3.4 Liter V-6 motors. Aluminum cylinder heads used in Chevrolet, Oldsmobile, Buick and Pontiac’s have a common problem with rocker arms coming loose. Misfire codes and very rough running conditions can indicate a fallen rocker arm.

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TTY Head Bolts Tech Article – Torque Wrench with Electronic Angle

Auto Specialty Tools, GM Intake, Head Gasket Repl., How To Auto Repair 5 Comments

© DenLorsTools.com Some head gasket sets come with replacement headbolts included automatically.

Summary: This automotive tech article is on TTY (Torque to Yield) head bolts. Headbolts that stretch require different tools, procedures and precautions compared to using conventional bolts. Improper procedures can result in bolt breakage and head gasket failure. Suggestions in this article help to insure the repair is done correctly the FIRST time.
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GM 3.1 and 3.4 Intake Gasket Replacement Tips

Auto Specialty Tools, Chevrolet, DIY, GM Intake, How To Auto Repair 3 Comments

Video I made a while back showing the specialty tool in use.

© DenLorsTools.com Summary: Automotive repair blog article on changing intake gaskets on GM 3.1 and 3.4 v-6 engines. Often the problem of water in the oil is mis-diagnosed as blown head gaskets. There are many time saving tips that can be used when changing the gaskets in this and Denlor’s original tech article linked within. The image above is click-able, it opens a new window for Youtube – just watch the volume! The tool is a Lisle 48500, we’ve been selling it for several years now.

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