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IMG_0064IMG_0055IMG_9789My stock heat exchanger hoses were both severed at the hole where they go through the engine bay floor. I replaced the flimsy aluminum hoses with beefier VW black paper covered hose. But I still see tension where it goes through the floor. How do you protect against friction here? Is there a gasket of some sort you use?

 

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Last edited by Ryan (formerly) in NorCal
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Ryan, four years and 20,000 miles with no damage to the heater hoses where they pass through the tins. My hoses look like this EMPI stuff (aluminum with black plastic coating):

HeaterHose

I do have one of these grommets (missing on the other side), but these seem to be more for keeping hot exhaust gas out rather than protecting the hose:

HeaterHoseGrommet

BUT, here's the thing - there's no binding where the hoses pass through the tin. They're free to move, with the hole in the tin about 1/8" larger than the OD of the hose. And the hoses are long enough that they're not pulled taught against the tin. That seems to be what's kept them from wearing.

Here are links to the hose and the grommets.

I find the heat very useful, as much in the summer as winter. Waking up in a vineyard at dawn, it can get pretty chilly out.

 

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Sacto Mitch posted:

I find the heat very useful, as much in the summer as winter. Waking up in a vineyard at dawn, it can get pretty chilly out. 

haha. you have no idea.

I just stopped by Bugformance to see if they had a grommet or sleeve or body seal or something. They're closed early for Bugorama in Costa Mesa. I'll figure it out. Maybe it's just the 95° heat, but my engine is running warmer today than the 1000 miles I put on it last weekend. And that's after replacing the cracked hoses.

Thankfully I put in a Nuckles Vent.

 

It's noticeably warmer today, here in Sacto, than it was last weekend. I've found, over about 70 degrees, engine temps are pretty sensitive to changes in outside air temps.

A good external oil cooler, mounted in the wheel well, gives more reserve cooling capacity than the cooler that VS mounts up over the transaxle. My current engine would run pretty hot with the VS cooler in outside temps over 90 degrees. But not after we mounted a Setrab cooler in the wheel well.

Even so, I don't like driving much in valley heat over about 85 degrees. I start to overheat before the engine does.

And, at any rate, I don't think cracks in the heater hoses will have much effect on engine temps.

 

 

I have the grommets as well.  They hold the couplers in place.

As for y'all havin' some heat, c'mon guys, it's a dry heat ;-).  Spend July/August in Charleston's humidity.  It's pretty much the same as New Orleans.  Your sweat won't evaporate, so you're constantly drippy.  Pretty soon you start to rust, mildew, or both.  Folks in some areas envy y'all in the winter.  I do it in the summer.  Funny thing is, my car has NEVER (knock wood) displayed any indication that it was overheating.  I'll keep my fingers crossed.

 

My own theory is that drivers are more affected by humidity than their cars are.

I spent the first half of my life in east coast humidity before wussing out and moving west. Here, in the land of milk and honey, 100 degrees feels about like 85 degrees felt to me in the old country.

But, I can't think of any thermodynamic reason why an air-cooled engine would feel any difference between 85 soggy, east coast degrees and 85 dry, California degrees.

So, I'm theorizing that Californians might tend to drive their cars in hotter temps than their east coast brethren and thus appear to encounter more overheating issues.

I like this theory so much that I don't really want to know if it has any basis in scientific fact.

 

Last edited by Sacto Mitch
Ryan in NorCal posted:
Sacto Mitch posted:

I find the heat very useful, as much in the summer as winter. Waking up in a vineyard at dawn, it can get pretty chilly out. 

haha. you have no idea.

I just stopped by Bugformance to see if they had a grommet or sleeve or body seal or something. They're closed early for Bugorama in Costa Mesa. I'll figure it out. Maybe it's just the 95° heat, but my engine is running warmer today than the 1000 miles I put on it last weekend. And that's after replacing the cracked hoses.

Thankfully I put in a Nuckles Vent.

Nuckles vent? Got a pic?

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