Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

6.2L Newbie

  #1  
Old 06-05-2013 | 05:14 PM
Murdock's Avatar
Thread Starter
|
Diesel Fan
Joined: Jun 2013
Posts: 14
Likes: 0
From: Seattle, WA
Default 6.2L Newbie

I just got a bus with a 6.2L in it with 262,000, I am new to Diesels but have worked on Motorcycles and gas cars/trucks for a while. Since it was a bus the governor is quite aggressive, I can barely get it to 60MPH. A few questions:

1) What can I do to let up on the governor to get more out of the motor as is?

2) There is a cheap GMC pickup truck for sale locally with a 6.5 in it, would it be worth purchasing to rebuild the motor and swap in?

3) Any special tools I should get right away to help?

I will be converting this bus for a travelling Band, cargo, bunks, RV style. I need it to climb hills and run for 8-9 hours at 65-70 with no issues. I am sure there are a pile of articles on here that detail the items I need to look at but a point in the general direction would be great. Or any general opinions on where I should start on tuning this motor up a little better.

Thanks, I hope to learn and share as much as I can.
 
  #2  
Old 06-06-2013 | 01:17 PM
racer55's Avatar
Diesel Bomber
Joined: Oct 2012
Posts: 1,848
Likes: 103
From: Scugog Island ONT.
Default

If you can find the time,use the resource in your backyard and go to Heath Diesel.

They are the height of knowledge on these engines and would be able to let you know what to expect as far as the limitations of the engine is.
 
  #3  
Old 06-27-2013 | 02:33 PM
Murdock's Avatar
Thread Starter
|
Diesel Fan
Joined: Jun 2013
Posts: 14
Likes: 0
From: Seattle, WA
Default

Thanks for the info. I have been digging around in the truck and making notes. I think I am going to take it in for a PM locally and have them go through some things.

I have already fixed the charging issue, bad battery balancer. I also tightened up some things, fixed the gear shift indicator, etc. I have two GMC service books now so I can identify what I am looking at as well as begin getting my hands dirty. I think the rear end ratio needs to be dropped for highway driving. Best I can tell I have a 4L60E Hydramatic with overdrive. This picture looks like some aftermarket overdrive, can anyone chime in? Maybe just a different transmission yoke I haven't seen before:

 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rescuedu
Diesel Bombers Introduction
4
08-26-2015 05:38 PM
Ladynlord
Diesel Bombers Introduction
7
08-03-2015 02:20 AM
RatsMC
Chevy/GMC 6.2L and 6.5L
19
05-04-2015 05:25 PM
letters4and18
Chevy/GMC 6.2L and 6.5L
1
03-25-2015 03:06 PM
ilovetacos
Diesel Bombers Introduction
3
12-10-2014 12:55 PM


Thread Tools
Search this Thread
Quick Reply: 6.2L Newbie



All times are GMT -5. The time now is 06:23 PM.