12/18/2023 0 Comments Flatirons crossing coolant for car![]() I realize you probably know all this, but on the off chance something got missed - maybe you made a field expedient repair, who knows. Write the torque down on a post it, take the post it, adult beverage and torque wrench to the truck and gradually tighten both bolts to the setting. On the off chance these are one use bolts, get replacements before actual truck use. ![]() I’ve never seen one of these being reused cause a problem, but others on the internet proclaim otherwise and warn of dire consequences if you do. obtain adult beverage and confirm the torque values for these 2 bolts.Īlso, confirm these bolts are not torque to yield that is, not supposed to be reused. Clean and dry with alcohol, carefully reassemble. I’d make sure the surface areas are clean, magnifying glass inspection, razor scrape and solvent. Next, without seeing all the relevant stuff with my own eyes, I’d replace both gasket and T-stat if you still have the old one, maybe that would work. if it’s leaking upstream of the housing joint, that will show it. That qualifies me for an internet certified design engineer status.īefore checking the housing joint, are we sure it’s not weeping up stream? we should be sure that the hose isn’t weeping, I usually hit a suspect area with something that will show evidence of a leak, so in this case I would coat the housing just below the hose mating with chalk line chalk, baby powder or similar. Not that I like them, but I’ve encountered them plus, for extra credit, I’ve actually disassembled and reassembled such an assembly and 1) had no parts left over after reassembly 2) said assembly did not leak after my intervention. Although I’ve not had one of these apart in a while because the Gen2 is ultra reliable, and has no problems I am familiar with that type of “gasket”. Housing was, or was not leaking prior to the t-stat change?īecause now I’m suspecting the T stat is not seating, fitting or otherwise orienting properly enough for the o ring seal to work. no excommunication or disintegration necessary. is just kidding guys, his Gen 1 continues to be trouble free. Of course if it's too thick it'll prevent the o-ring from sealing at all.Ĭould it be that the NAPA thermostat is the culprit? That seems unlikely, but one of the analytical rules of automotive mechanics is to diagnose a new problem by looking at the last thing you did. Since the original o-ring was deformed (after 80K miles), I thought that if I added a gasket or gasket material it might act as a spacer to allow the o-ring to seal without deforming it. I'll try that, but I doubt that it'll solve the leakage problem because the seal isn't made where those two surfaces meet. It's hard to imagine that I've bent an aluminum casting by tightening its machined flat surface down against a machined flat iron surface, but a touch-up with some fine abrasive cloth isn't a bad idea. Thinking, "Ah-ha, I've found the problem!" I replaced the o-ring with a new one from the Ford dealership, and all was well for a couple of weeks. That was the original factory o-ring that I'd reused when I replaced the thermostat in November. When I took it apart recently to see what was wrong I observed that the o-ring was no longer round in cross-section. The thermostat sits in a little pocket machined into the block, the o-ring goes down on the thermostat, and a cylindrical protrusion with an angled end in the thermostat housing compresses the o-ring and makes it seal.Įxcept it doesn't seal. So I replaced the single-spring factory thermostat with a dual-spring NAPA unit of the same temperature rating (195 degrees). That occasion was after a drive from Nevada to Colorado in which I became concerned that the engine was running a little hot. Eligible users will need to contact their Human Resources Administration or local Volvo retailer, in order to acquire the appropriate partner code, which is required to register for the site.I am putting the assembly together exactly as I found it when I first took it apart. Additional purchase eligibility will be extended to eligible employee's spouses and members of their immediate households only. The A-Plan by Volvo program is offered to active employees of selected US business partners, fleet partners, and special organizations, all having a unique relationship with Volvo. ![]() Learn More about Volvo Certified Collision VIP "Certified by Volvo" Warranty Upgrade Service Contracts Protect Your Investment-Extended Service Contract ![]()
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