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MxChief66-1 · 12-31-2016, 02:27 PM

To those of you with experience under the 450D hood, you see anything I should be concerned with? All wire connections appear solid. All is dry. I'll probably upgrade hose clamps. Thanks.

Mark & Dee
2016 Anthem 44B

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brobox · 12-31-2016, 02:51 PM

The good news is you have the new round Buhler motors. Nice to know they were updated on the 2016's. I have never heard of one of those spring clamps leaking, they are low PSI lines at 7 PSI. The clamps on the pump motor on the other side of the AH are the ones that need to be changed. They come off the engine at a higher PSI. Hopefully your 2016 already has the upgraded clamps, but it doesn't hurt to check.

If you want to beef up those clamps, slide the back without removing them then add a screw clamp. That way no fluid will be lost. I did that to pump #4 on the back side when I did the clamp upgrade.

I see that your hose going from the coolant tank to the AH unit is discoloring already. That hose gets stiff from the heat of the fluid, cracks and starts to leak, usually under the clamps. That should be changed on your first annual service with a better quality hose, per the AH tech that changed my motors. I replaced mine with this sold at Lowe's by the foot. https://www.lowes.com/pd/B-K-5-8-in-...ing/1000115999

Tall Tex · 12-31-2016, 06:23 PM

I duct taped a shower drain screen (from Lowes) over the air inlet to keep the mud daubers out.

Gary.Jones · 12-31-2016, 06:30 PM

Yep, you got the new Buehler pumps.... what are we looking for?

Gary

MxChief66-1 · 12-31-2016, 07:08 PM

Quote:

Originally Posted by brobox

The good news is you have the new round Buhler motors. Nice to know they were updated on the 2016's. I have never heard of one of those spring clamps leaking, they are low PSI lines at 7 PSI. The clamps on the pump motor on the other side of the AH are the ones that need to be changed. They come off the engine at a higher PSI. Hopefully your 2016 already has the upgraded clamps, but it doesn't hurt to check.

If you want to beef up those clamps, slide the back without removing them then add a screw clamp. That way no fluid will be lost. I did that to pump #4 on the back side when I did the clamp upgrade.

I see that your hose going from the coolant tank to the AH unit is discoloring already. That hose gets stiff from the heat of the fluid, cracks and starts to leak, usually under the clamps. That should be changed on your first annual service with a better quality hose, per the AH tech that changed my motors. I replaced mine with this sold at Lowe's by the foot. https://www.lowes.com/pd/B-K-5-8-in-...ing/1000115999

Chuck.

I'll ensure I have the upgraded clamps on back side.

I do hope the Buehler pumps hold up. I guess if I do have to replace one it shouldn't be to painful.

It was interesting that the hose was this color during PDI. I will definitely be upgrading to the braided hose at first annual.

Thanks for taking a look.

MxChief66-1 · 12-31-2016, 07:13 PM

Quote:

Originally Posted by Tall Tex

I duct taped a shower drain screen (from Lowes) over the air inlet to keep the mud daubers out.

Great point Larry! I could see all kinds of nasty insects taking up residency there. Appreciate you taking time to point that out.

FreshAir · 12-31-2016, 07:16 PM

My early 2016 Aspire built in May 2015 and delivered in June had 108 pumps which began to fail shortly afterwards. Good to see they were upgraded.

Tall Tex · 01-01-2017, 06:41 AM

Quote:

Originally Posted by FreshAir

My early 2016 Aspire built in May 2015 and delivered in June had 108 pumps which began to fail shortly afterwards. Good to see they were upgraded.

Mine came with the Buehler pumps, and the stir pump has been replaced.

I hope it was just a fluke failure.

Dr4Film · 01-01-2017, 07:06 AM

Quote:

Originally Posted by brobox

I see that your hose going from the coolant surge tank to the AH unit is discoloring already. That hose gets stiff from the heat of the fluid, cracks and starts to leak, usually under the clamps. That should be changed on your first annual service with a better quality hose, per the AH tech that changed my motors. I replaced mine with this sold at Lowe's by the foot. https://www.lowes.com/pd/B-K-5-8-in-...ing/1000115999

Chuck's recommendation is right on!

The coolant surge tank hose on my older AH had cracked a few times right at the connection point and clamp next to the main tank radiator cap. If you don't catch that right away your main tank will lose fluid and you won't realize it.

I solved the problem by installing a section of actual opaque coolant rated hose for the first half length of the hose and then used a clear hose for the balance to the surge tank. This allows me to still view the action of the Hot/Cold coolant flowing back and forth. The clear can easily be replaced now that it is easier to get to and I do that every few years.

Dr4Film ----- Richard