Question: 5.7 Olds Injector Pump Question - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
Home Forum Market Place Garage Tuning Library DTC Tool Register Vendors
Go Back   Diesel Place : Chevrolet and GMC Diesel Truck Forums > GM Diesel Engines > All Other GM Diesels
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Advertise

All Other GM Diesels Discuss any other GM Diesel engines... 5.7l Olds, Chevette Diesel, or anything else that doesn't fit anywhere else...

DieselPlace.com is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 11-09-2019, 12:11 PM   #1 (permalink)
archangel1190
Gear Grinder
 
Join Date: Nov 2019
Posts: 2
iTrader Score: 0 reviews

5.7 Olds Injector Pump Question

I bought a just about perfect 1980 Eldorado diesel, I know about them and was aware of their reputation. I have been driving it awhile and it suddenly started acting weird, last week i was driving it home and it was losing power and wouldn't respond when i would depress the throttle. I limped it home but several times it died while idling. I have been researching the injector pumps and read about the plastic ring that degrades and clogs the return line and this causes problems. I haven't had time to look at it, but i read to look for fuel coming out of the return line, also if the pump is bad whats a rebuild like, i am a mechanic so not afraid of working on cars but am afraid of messing up an injector pump. I have poppet injectors, but i am confused about rebuild kit and where to find the replacement metal ring.

__________________
1980 Eldorado diesel 5.7L

Last edited by OkDually; 11-09-2019 at 12:46 PM. Reason: prefix/sig
Offline  
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-10-2019, 05:00 PM   #2 (permalink)
dieselolds
Ronald Reagan fan
 
dieselolds's Avatar
 
Join Date: Sep 2003
Location: Newfoundland/Alberta,Canada
Posts: 4,091
iTrader Score: 3 reviews
Send a message via MSN to dieselolds

It’s a easy pump to fix.A local stanadyne shop will have a rebuild kit with o-rings and seals with a new flex ring.I think it’s part number 24370.

__________________
1996 GMC Sierra ext.cab Z71....with new genuine GM 6.2 660 short block,4L80E/6.5TD cylinder heads,DS4 5521S,82' 6.2 rocker arms,acdelco TP1069/Racor 20S fuel filters,4" diamond eye exhaust,3.73 G80 locker,stanadyne 37818 injectors

1996 Chevy K1500 Z71.....with '99 6.5 506 goodwrench van engine,88-93 6.2 diesel Napa y-pipe,'87 700R4,acdelco TP630F/Racor 20S fuel filters,Bosch non-turbo injectors,stanadyne blue tag 5088

1993 Chevy K1500 Z71...with 97' 6.5 TD 506 block,82' 6.2 rocker arms,stanadyne 37818 injectors,stanadyne blue tag 4911,DSG girdle,reman 700R4,Banks boost/pyrometer gauges,acdelco TP1069/TP943 fuel filter system,4 diamond eye exhaust/2 piece crossover

2008 Mercedes Benz E320 3.0 V6 turbo diesel

2013 Volkswagen Passat 2.0 TDI
Offline   Reply With Quote Quick reply to this message
Old 11-10-2019, 11:37 PM   #3 (permalink)
57diesel
Diesel Veteran
 
Join Date: Mar 2012
Location: St. Paul/Minneapolis MN USA
Posts: 5,411
iTrader Score: 0 reviews

Its not too hard to get the top off these pumps. IIRC you kinda slide it away from the front of the car as you lift it to clear the shutoff solenoid. A look at what is floating in the fuel there will tell you a lot about the condition. If its clean fuel you should check other places before condemning the pump. If there is crap floating in the fuel there its done and needs a rebuild. If its clean chances are good the gasket will be in good shape too and go back on and seal so you aren't out much more than some time.



What part of the us/world you in? Cloth or leather interior? I still have my 80 Eldo and its got a good pump on it if you are not too far away from MN.
__________________
98 Burb K25 4.10's 250K miles, new to me, pretty clean and stock.
95 Burb K25 3.73's CRASHED 250K miles, looks to have been rebuilt at least once, stock, bad rust, DE exhaust w/walker muffler, 8' western plow.
81 Buick Riviera GAVE AWAY with the infamous Olds 5.7 diesel possibly still going strong.
15 VW Golf wagon, TDI. Did the buyback on my 13 Jetta TDI wagon so it was basically a trade up.
96 Burb K25 3.42's SOLD at 340K miles, told it was all original, close race between engine wearing out or body completely rust out.
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-12-2019, 04:09 AM   #4 (permalink)
archangel1190
Gear Grinder
 
Join Date: Nov 2019
Posts: 2
iTrader Score: 0 reviews

I live in Spokane Washington, so if you have a good working pump i would be interested in it as a spare, it would also allow me a little more time to learn on mine as i take it apart. My eldo has leather, stainless top, sunroof and just about every possible option, its a really nice driving car. and i am surprised by the mileage even with it being a diesel.
__________________
1980 Eldorado diesel 5.7L
Offline   Reply With Quote Quick reply to this message
Old 11-12-2019, 09:44 AM   #5 (permalink)
57diesel
Diesel Veteran
 
Join Date: Mar 2012
Location: St. Paul/Minneapolis MN USA
Posts: 5,411
iTrader Score: 0 reviews

Sounds like a nice car and you are a little far from me to make a whole parts car deal practical. At the moment I don't really want to just sell parts off it.



80 is an oddball year for the diesels. Partway through the year they switched from the pencil to micro injectors. 81 they added the cold advance so that makes a micro with no advance a half year item. Rebuild kits are not a problem because they were somewhat universal but the exact pump can be tricky. Later pumps should work and you can add the advance wiring since its the same circuit as the fast idle and glow inhibit.



Other odd thing about the 80 is the heads. There was only the part year that had the micro injectors and external EGR. 81 had the micro but internal EGR like a gas engine. IF you are looking at intake gaskets the ones you need have the 2 square gaskets for the crossover and the intake ports are also pretty square. The later and more common internal EGR gasket set has more rectangle crossover gaskets with the small egr port in the middle of them and the intake ports are also more narrow and rectangle. If you get the wrong ones you end up with leaks into the crankcase which isn't good for a diesel.
__________________
98 Burb K25 4.10's 250K miles, new to me, pretty clean and stock.
95 Burb K25 3.73's CRASHED 250K miles, looks to have been rebuilt at least once, stock, bad rust, DE exhaust w/walker muffler, 8' western plow.
81 Buick Riviera GAVE AWAY with the infamous Olds 5.7 diesel possibly still going strong.
15 VW Golf wagon, TDI. Did the buyback on my 13 Jetta TDI wagon so it was basically a trade up.
96 Burb K25 3.42's SOLD at 340K miles, told it was all original, close race between engine wearing out or body completely rust out.
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Diesel Place : Chevrolet and GMC Diesel Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

PLEASE READ! You must check your email inbox for the confirmation link to complete registration. Please check your spam box if you do not see the email in your inbox.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 03:26 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
© AutoGuide