[Mgs] A short tale of parts & service

Max Heim mvheim at sonic.net
Wed Sep 26 10:11:33 MDT 2018

Actually, when we finally got to my house, we swapped the luggage into my 1967 Barracuda convertible and headed up the freeway to catch up with the Melee. Reached the first night’s stop in Red Bluff by 7pm.

Not the first participants to have to pull in a backup vehicle…

The plastic blade didn’t directly “puncture” the radiator, actually. But it was trapped inside the shroud, and wound up smashing several tubes right where they enter the top and bottom tanks (the blade being caught on the lip of the tank at each revolution, I think). I didn't even know that it had thrown a blade until I started disassembly — I was assuming the 50+ year old radiator had just suddenly developed a stress crack after being transferred from one body to another.

With 5 or 6 tubes mangled top and bottom, it lost coolant instantly, and the radiator shop said it was irreparable other than by completely recoring it.

Max Heim
'66 MGB

> On Sep 26, 2018, at 3:56 AM, Dan DiBiase <dan.dibiase at gmail.com> wrote:
> A bummer that you couldn't participate in the melee, Max, I bet you were disappointed. Good recovery by Moss, though. 
> Just tells you how fast these things spin, for a plastic blade to puncture a metal radiator! 
> Dan D
> '76B, '65B
> Central NJ USA
> http://dandibiase.cbintouch.com/ <http://dandibiase.cbintouch.com/>
> On Tue, Sep 25, 2018 at 11:36 PM Max Heim via Mgs <mgs at autox.team.net <mailto:mgs at autox.team.net>> wrote:
> I haven’t said much on the list about my project. but I got my “new” 66 B roadster together in time for the start of the California Melee on Sept. 8. Unfortunately, a blade flew off the new Moss plastic fan within the first ten miles and punctured the radiator, so that was as far as it got — from the San Francisco Presidio to Marin Civic Center. 
> I made the mistake of trying to get it to the next exit (it was a bad place to be on the shoulder, between the sound wall and 5 lanes of traffic doing 75+), which resulted in overheating and a blown head gasket. Total mileage to failure on this fan was 307 miles.
> Subsequent examination of the stub revealed an air pocket in the plastic right at the center of the base of the blade. Moss accepted my photo of this as evidence of a manufacturing flaw. This model of fan was already out of production (and out of warranty) — I had purchased it as part of a large order back in 2015 when the car body was still in the paint shop.
> But regardless, they decided to send me a new fan ("new model" nylon 7-blade fan) and a new aluminum radiator (the shop had told me mine was irreparable). I thought this was pretty decent of them.
> I just picked up my head at the machine shop where they had skimmed the surface and cleaned up the valves. In the meantime I had inspected the lifters based on a tip from Dave at British Motorsports in Campbell and found a few of them were showing pitting. By replacing them now I can save the cam.
> Now I just need to pick up the lifters and the gasket set and I should be able to have it back together this weekend.
> A few tips based on my experience:
> 1. Just shut it down. If I had stayed out on the freeway verge I would have saved the head gasket, and AAA would have picked me up in a timely manner. But since I had reported myself “safe” and off the highway, it took 4 hours to get a tow. 
> 2. Check your lifters every so often. I had replaced the cam and lifters due to lifter spalling sometime between 1998 and 2010. The new lifters were just starting to pit in 2018.
> 3. If you have a yellow plastic 7-bladed fan from Moss USA purchased prior to mid-2015, you may want to consider retiring it. I suppose if it hasn’t broken so far, it probably doesn’t have air bubbles in a critical location. But they had perhaps a dozen reported incidents. The current product being sold as part #434-332 is a different pattern by a different maker in a different material, so should not be a cause for worry.
> Buy British, Buy Best!
> --
> Max Heim
> '66 MGB
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