Engine - Installation Kits
File In Section: 6 - EngineBulletin No.: 87-61-28
Date: August, 1998
INFORMATION
Subject:
Installation of a 6.5L Diesel Goodwrench Engine into a 1988-98 Model Year Vehicle (Appropriate Service Kits Shipped Together with Goodwrench Engines from GMSPO)
Models:
1988-98 Chevrolet and GMC B, C/K, G, P Models
with 6.2L or 6.5L Diesel Engine
(VINs C, J, P, S, Y, F, - RPOs LH6, LL4, L49, L56, L57, L65)
The 6.5L Diesel Goodwrench engines consist of a block with minor casting and machining changes for the 1988-98 model years. The revised block casting has additional engine bracket mounting bosses that are used exclusively on the GMT 800 series pickup. The engine bracket mounting bosses for all other vehicles remain in their original location. The Goodwrench 6.5L diesel engines include conversion to metric thread fasteners. The fastener locations are the engine bracket mounting bosses and the transmission to engine attaching points are now machined with a metric thread.
Important:
The metric machined block can be identified by a yellow paint mark located between # 2 and # 3 freeze plug on both sides of the block (Figure 1, Item 1). An additional mark is located on the left rear of the block (Figure 2, Item 1).
Procedure
When installing a Goodwrench engine into a prior model year vehicle, the left side engine bracket mounting bosses interfere with the installation of the original left side engine bracket. Because of this interference, a left side engine bracket (99 part, re-use the right bracket) must be used when installing a Goodwrench engine into a 1998 or prior diesel equipped vehicle. In addition, because of the metric conversion, metric fasteners are required to attach the engine brackets (both sides) to the block, and to attach the transmission to the engine.
GMSPO has released service kits that will simplify the installation of the Goodwrench engine into a prior model year diesel equipped vehicle. The kit includes the necessary bracket and fasteners for the specific application and will be shipped together with the Goodwrench engine.
Warranty Information
For vehicles repaired under warranty, use:
Labor Labor
Operation Description Time
J1840 Engine, Universal - Use published labor
Replace operation time