Diesel Bombers SIGN UP NOW

National Association of Diesel Motorsports
Go Back   Diesel Bombers > Chevy/GMC Duramax > Chevy/GMC 6.2L and 6.5L
Sign in using an external account
Register Forgot Password?
Search


Registered Members don't see these ads. Register now it's free!

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

Welcome to Diesel Bombers Forums!
Welcome to DieselBombers .com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Diesel Bombers Forums community today!


Reply
 
 
 
submit to reddit
 
LinkBack Thread Tools Search this Thread
  #1  
Old 11-26-2009, 08:06 AM
dustys24valve's Avatar
Diesel Wrench
Status: DB's head window licker ..........

   
View Member's FaceBook Profile

Default Durability and Reliability of a 6.5??

Hey Fellas,
My boss is thinking about buying a 1997 Hummer H1 with the 6.5l Turbo Diesel. He asked me this question and being a Cummins guy I couldn't give him much input. Anything you guys can tell me or let me know about will be helpful and appreciated, thanks in advance.

dustys24valve's Sig:2002 cummins, Quadzilla Adrenaline, Air Dog 100, BHAF, 4'' straight pipe, my work in progress when money allows


Reply With Quote
  #2  
Old 11-26-2009, 12:11 PM
Woody35's Avatar
Diesel Bomber
Status: Lovin the KOJO Tune

BigWoody35
   
Send a message via AIM to Woody35 Send a message via Yahoo to Woody35 View Member's Albums View Member's Youtube Account

Default

pmd needs to be relocated somewhere other than in the enine compartment. oil cooler lines are complete **** so i would suggest some aftermarket ones that screw into the block. injectors should be replaced every 100k. only use bosch duratherm glowplugs and ac delco 60gs, this is because if you use anything eles they can swell.

chances are since its a 1997 like mine the injection pump has already been replaced because of the misdiagnosed problem with the pmd. so you probably have an injection pump that is somewhat newer than the truck so thats good. if the truck hasnt been beaten on which im sure a hummer hasnt it can last a goo 300K before it needs to be rebuilt. now both of us have the dreaded first year oil squirter block.

cracks can form around the oil squirters and eventually kill the engine. doesnt happen a lot but its a possibilty. there pretty good engines but have a bad reputation. kinda like the 6.0 liter powerstroke. if you replace GMs stupid design mistakes and take care of it the engine should last a long time.

Woody35's Sig:1997 Chevy K1500 4X4 EC/SB L56 6.5TD/4L80E
KOJO Tune, GM-8 Turbo gated @ 15 psi, 2100 PSI Pop Pressure Bosch Injectors,
Bosch Duratherm Glowplugs, Steel Braided Oil Cooler Lines,Relocated D-Tech PMD,Tekonsha Voyager Brake Controller
Autometer Gauges, ARP Headstuds, K47 Air Box , Flowmaster Crossover & 4 Inch Diamond Eye Exhaust
Reply With Quote
  #3  
Old 11-27-2009, 11:43 AM
dustys24valve's Avatar
Diesel Wrench
Status: DB's head window licker ..........

   
View Member's FaceBook Profile

Default

bump, anything else?
Reply With Quote
  #4  
Old 11-27-2009, 08:32 PM
DieselSlug's Avatar
Diesel Enthusiast
Status: bombarded w/rust....

   
Default

Ok here is a list of what i would consider....

PMD known failure due to heat, needs to be moved to a COOL place mounted to a heatsink. Once a PMD is heat damaged it is rolling the dice.
I/P's are often condemed to death before proper diagnostic procedures are completed to see what is actually wrong.

*HOWEVER*
This hummer may be an exception, most hummers came with DB2 injections pumps that are mechanical and not electrical, which means no PMD. But i am not 100% sure!!


Blocks do crack easily, something about the casting that just makes them prone to it, sometimes it happens, most times it doesnt.
Do NOT let the truck get any hotter than 210 degrees F, consider 210 RED. These engine do not like heat like that.
Lift pump needs to be tested, they can go bad and the truck will still run, leading to premature i/p failure.
OPS unit controls if fuel gets to the engine, they run the full voltage of the system however are only rated for less, often replaced unit.
Make sure the starter bracket to the block is still attached to the back of the starter, there is major torque put through it and without the bracked starters shear tabs right off the block..

DieselSlug's Sig:1994 Silverado R/C L/B 2500 VIN. F
219,000 Miles GU6 Full-Floating Rear (3.42 Gears). + Remote Mount PMD, #7 Resistor, HD Fan Clutch, Dmax Fan, Lift pump, Snorkle mod, Chipped, 97 Air Box, Duraterms, ARP headstuds, H/V Oil & Water Pump, Marine Injectors, Rebuilt I/P 3 Years Ago, Fuel Tank, Heath Turbo Master, Rem. Vac. Pump, Optix Boost/Pyro Gauge Rust... What Rust..?
Reply With Quote
 
 
 
submit to reddit
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


 
All times are GMT -5. The time now is 07:56 PM.

Copyright And Legal Notice Links Of Interest

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.5.2
Diesel Bombers ® - All Content Protected Under Intellectual Property Rights Law of Registered Trademarks
Reg. No. 3,494,401 Cls. 100, 101 & 104 Under Int. Cl. 38
USE AT YOUR OWN RISK WE HOLD NO LIABILITY FOR ANY CONTENT RIGHT, WRONG OR INDIFFERENT

Protected by Copyscape Duplicate Content Check


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235