Can @AreaDieselService Solve This Rare DB2 Automotive Pump Puzzle for a@MortskeRepair Rustoration
We’re back with a collaborative project from @MortskeRepair – a repair and return project that is a little different from those we’ve covered before.
Firstly, the pump is a rare one! Similar to many pumps we repair and rebuild daily at @AreaDieselService but still different in its own right. Curtis covers the rustoration resurrection project that Mortske is undertaking that this pump will be a critical component of – a 1978 Chevy C10 with 5.7L V8 Diesel.
Secondly, the pump arrived in puzzle of pieces and our pump technician Corey will have to do some detective work to discover what problem-causing parts/components of this (Roosa) Stanadyne DB2-825-3633 pump caused the issues Mortske described.
Follow along the repair and return process!
0:00 Intro
1:25 Legendary 1978 Pump Backstory
3:51 DB2-825-3633 Serial Breakdown / Review Puzzle
7:19 Flex Ring Failure Issue
9:42 Stuck Plunger
11:16 Things to Consider Before DIYing
12:04 Can’t Gain Disassembly Knowledge
13:00 Pre-Disassembled = Save Work & $? (Spoiler: Nope.)
13:54 Corey in Rebuild Room
15:45 Review of Automotive Pumps
18:50 Quick Tip – Attempting to Disassemble Head & Rotor Components NOT Recommended
19:32 (Misspoke) “Die” not “Tap”
19:53 Replace Throttle Shaft Bushings
22:11 Governor Arm Linkage / Cross Shaft & Why This Done First
23:45 Turning Up Roller Setting / Leaf Spring for HP Increase
24:30 Fuel Delivery Assembly
26:15 Torque & Tap Cylinder Tips
28:27 Freeing the Plungers
30:43 Leaf Spring Setting / Change for HP
37:06 (Misspoke) “Flex Ring” not “Leaf Spring”
37:08 Checking Weight Cage Timing
38:20 (Misspoke) “Flex Ring” not “Leaf Spring”
39:28 Head & Rotor Unit Assembly
44:03 H & R Into Housing
47:50 Major Problem!
48:17 Found a Housing in Our Spare Hoard!
49:11 Back to Cam Screw
49:37 Power Piston Difference
51:37 Plug into GOOD housing!
52:25 Finishing Assembly
55:03 Solenoid & Top Cover
58:00 New Return Connector
58:38 Test Stand
1:02:35 Adjustments
1:05:39 Running Test Specs
1:10:36 Idle Adjustments & Settings
1:12:05 Checking Shut-Off
1:12:49 Checking Cranking
1:14:51 Advance & Fuel Specs
1:16:53 Adjustments
1:19:02 Final Settings & Checks
1:19:18 Back to the Bench
1:19:41 Air Timing & Mark
1:21:23 Final Button-Up
1:23:42 Outro
Area Diesel Service is focused on bringing diesel-related, interesting, thought-provoking content that highlights our expertise and capabilities to our viewers on this YouTube platform. We are open to future collaborations and projects – reach out at [email protected] if you have any ideas or opportunities for us!
Area Diesel Service’s ultimate goal is to provide customers the most efficient solution to our customers problems and to have the reputation of being experts that are easy to work with and our customer’s preferred one-stop diesel shop! To achieve this, we partner quality replacement parts, repair, testing, warranty, and services with excellent customer service!
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