Testing the roosa master fuel injection pump for an Oldsmobile 350 diesel. The fuel injection pump (Figure 2). Insert the Pump Timing Pin (P/N 40610) into the hole (Figure 3a) and rotate the pump's drive shaft until the pin indexes in the internal drive shaft slot. Leave the pump timing pin in the pump until installation is complete. NOTE: A small punch may be temporarily inserted into the small hole in.
- Plumbing Injection Pump
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$24.95
Covers: 1987-1994 Stanadyne DB2 Fuel Injection Pump
- For 1987-1994 International 7.3L diesel engines
Pages: 111
Format: PDF download
File size: 93mb
Compatibility: Windows/Mac/Mobile
Note: Instant digital download only – no printed copy or CD-ROM media.
Plumbing Injection Pump
This downloadable PDF service manual provides detailed service, overhaul and testing information for Stanadyne DB2 fuel injection pumps used in International 7.3L engines from 1987 to 1994.
Latest edition, 1988. This manual is designed to be used in conjunction with the 7.3L engine service manual.
Topics:
- General Information
- Fuel Injection Pump Identification
- Pump Operating Principles
- Disassembly
- Inspection
- Reassembly
- Injection Pump Calibration
- Testing
- Special Service Tools
- Source Address List
- And More…
How does this work?
It's simple – after purchasing this manual through our secure checkout, a download link will be sent to the email address you specify at checkout. You have up to 90 days to retrieve and save the file. Once saved, the manual is yours for good.
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International 6.9L IDI Diesel
Development of the 6.9L IDI began several years before Ford and International would commence their relationship in the diesel pickup sector, which would last nearly 30 years. And neither Ford nor International knew at the time that this engine would eventually lay the foundation for one of the most successful diesels ever offered. The 6.9L IDI was introduced for 1983 model year Ford 3/4 and 1 ton F-Series pickups. It was available with a 4 speed manual or 4 speed automatic transmission, though a 5 speed variant was offered during its last production year. At 170 horsepower, the 6.9L was never a speed demon, but it produced a respectable 338 lb-ft at only 1,400 rpm. And by nature of being a diesel, its fuel economy capabilities far exceeded that of all Ford's gassers with comparable torque output. Completely mechanical, the 6.9L is relatively easy to maintain and repair. Despite having a fraction of the performance potential of modern diesels, the 6.9L IDI earned itself the reputation of being a reliable workhorse, and the pickups still make honest work and farm trucks today.
6.9L IDI Specs
Engine: | International Harvester 6.9L IDI V-8 diesel |
Years Offered: | 1983 to 1987 model year Ford Trucks |
Displacement: | 6.9 liters, 420 ci |
Compression Ratio: | 20.7 : 1 for 1983 MY, increased to 21.5 : 1 for 1984+ MY |
Bore: | 4.00 inches |
Stroke: | 4.18 inches |
Aspiration: | Naturally aspirated, never offered with factory turbocharger options |
Injection: | Indirect injection (IDI), mechanical injectors, Stanadyne rotary style injection pump |
Valvetrain: | 2 valves per cylinder, standard OHV, camshaft in block |
Peak Horsepower: | 170 hp @ 3,300 rpm |
Peak Torque: | 318 lb-ft @ 1,400 rpm |
International 7.3L IDI Diesel
The 7.3L IDI is based on the 6.9L IDI engine platform, the 7.3L having a marginally larger cylinder bore. The extra displacement resulted in a modest bump in horsepower and just over 20 extra lb-ft of torque. In 1993, a turbocharged version of the engine was released, which pushed torque to nearly 390 lb-ft. Since the 7.3L is a high compression engine, the turbocharged versions proved to be marginally less reliable, as the engine was not originally designed with turbocharging in mind. The 7.3L has slightly larger head bolts than the 6.9L, contributing to a more robust design. The cylinder walls of the 7.3L are thinner than the 6.9L, and as a result cavitation in the water passages is a concern (cavitation is the formation of small vacuum pockets in a liquid, in the case of an engine this can erode the cylinder walls over time). However, using the appropriate SCA/DCA (supplemental coolant additive/diesel coolant additive) eliminates this risk. The 7.3L IDI was replaced mid-model year for 1994, when Ford/International released the 7.3L Power Stroke. The two engines share displacement and dimensional characteristics, but the direct injection Power Stroke is much more than an adaptation of the IDI.
7.3L IDI Specs
Engine: | International/Navistar 7.3L IDI V-8 diesel |
Years Produced: | 1988 to 1994 model years |
Displacement: | 7.3 liters, 444 ci |
Compression Ratio: | 21.5 : 1 |
Bore: | 4.11 inches |
Stroke: | 4.18 inches |
Aspiration: | Naturally aspirated or turbocharged. Turbocharged version available for 1993 and 1994 MY trucks only |
Injection: | Indirect injection (IDI), mechanical injectors, Stanadyne rotary style injection pump |
Valvetrain: | 2 valves per cylinder, standard OHV, standard camshaft in block |
Peak Horsepower: | 185 hp @ 3,000 rpm (naturally aspirated) |
Peak Torque: | 338 lb-ft @ 1,400 rpm (naturally aspirated) |
6.9L IDI and 7.3L IDI Performance Options
Stanadyne Fuel Pump Injection Pump Work Manual
Modern electronically controlled diesel engines are relatively easy to modify for significant performance increases. The IDI engines are limited in aftermarket support and there are few options available to improve performance. To squeeze the most out of a Ford IDI, the following modifications are common:
•Turbocharging - Aftermarket turbocharger kits are available for both the 6.9L and 7.3L IDI. Turbocharger systems designed for direct injection engines cannot be easily adapted, since the IDI has a high compression ratio and maximum boost needs to reflect the operational characteristics specific to an IDI. When retrofitting an IDI with a turbocharger, there are companies that manufacturer injectors and injection pumps designed to work efficiently with these systems. Performance injectors and injection pump upgrades are not available for naturally aspirated IDI engines. Airflow needs to be increased for these engines to accept fuel system upgrades without EGT (exhaust gas temperature) concerns.
Stanadyne Fuel Injection Pump Parts
• Turning up the injection pump - The Stanadyne injection pump found on the 6.9L and 7.3L IDI can be turned up to flow more fuel. When done in moderation, owners will notice a moderate performance increase with minimal reliability concerns. For safety reasons, a pyrometer is recommended when turning up the injection pump. A pyro will also help you find the 'sweet spot', where performance is maximized while maintaining reasonable exhaust gas temperatures under load.
Vw Injection Pump
• Removing the soup bowl - From the factory, most 6.9L and 7.3L IDI engines have a restrictive bowl attached to the bottom of the air cleaner lid. The purpose of this 'soup bowl' (as it is commonly referred to) is to reduce intake noise. It can be cut off and removed to marginally increase airflow to the engine, though a noticeable amount of intake noise will be present.
Stanadyne Pump Diagram
• Free flowing exhaust - A custom exhaust system for an IDI will provide noticeable performance increases. The availability of pre-formed kits is limited, but having an exhaust shop fabricate a complete exhaust system with a straight through muffler is a viable option.
