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gdotcvg · 10-07-2021, 12:05 PM

Thanks for all of the advice to date.

Progress update (slow but thorough)

• There was zero debris in examination of the oil cooler or its path or 2-bolt access panel on the back side of engine bank 2.
• Reinstalled oil cooler and rear access panel and reversed flushed through normal engine coolant outlet port (green arrow in ref. photo) without and then with t-stat installed. Water flowed out of the uninstalled water pump ports and other opening. Partial success: one significant piece and several slivers found.
• I plan one more engine flush path after I source a few more rubber plugs. This will be through the center port of the water pump cavity, with t-stat installed, bottom port in water pump cavity plugged and normal engine coolant outlet port plugged. This will force water out on the two rectangular water pump cavity openings. That will be all that I can do with the engine.
• Reversed flushed radiators extensively with zero debris
• I have a question regarding back flush of the heater core. Referencing the Pelicanparts photo. Is the coolant line near the red arrow the normal in-flow to the heater core and the purple arrow line the return?
• Found 2 new projects to tackle before I get if off of ramps.
1. Front engine mount. I ordered the insert and pads from Pelican and will press into the existing support structure. This looks to be relatively easy with the water pump and hoses disconnected.
2. I have a very slight weep from the return fuel line quick connect. I’d like to disconnect and replace the o-ring in the connector but no parts are listed or identified in the PET. Any advice on o-ring specifics; size, material (assume viton), or part number?

10-07-2021, 12:05 PM	#6
gdotcvg Registered User Join Date: Sep 2015 Location: SW Ohio Posts: 28	Thanks for all of the advice to date. Progress update (slow but thorough) • There was zero debris in examination of the oil cooler or its path or 2-bolt access panel on the back side of engine bank 2. • Reinstalled oil cooler and rear access panel and reversed flushed through normal engine coolant outlet port (green arrow in ref. photo) without and then with t-stat installed. Water flowed out of the uninstalled water pump ports and other opening. Partial success: one significant piece and several slivers found. • I plan one more engine flush path after I source a few more rubber plugs. This will be through the center port of the water pump cavity, with t-stat installed, bottom port in water pump cavity plugged and normal engine coolant outlet port plugged. This will force water out on the two rectangular water pump cavity openings. That will be all that I can do with the engine. • Reversed flushed radiators extensively with zero debris • I have a question regarding back flush of the heater core. Referencing the Pelicanparts photo. Is the coolant line near the red arrow the normal in-flow to the heater core and the purple arrow line the return? • Found 2 new projects to tackle before I get if off of ramps. 1. Front engine mount. I ordered the insert and pads from Pelican and will press into the existing support structure. This looks to be relatively easy with the water pump and hoses disconnected. 2. I have a very slight weep from the return fuel line quick connect. I’d like to disconnect and replace the o-ring in the connector but no parts are listed or identified in the PET. Any advice on o-ring specifics; size, material (assume viton), or part number?