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Old 07-10-2002, 12:12 AM
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Join Date: Jun 2002
Location: Monrovia, CA
Posts: 490
Any long-term opinions on Nissen's Radiator?

Anybody have a Nissen's radiator without the neck reinforcement in their car for more than a few years? Is it holding up? Has it cracked or failed? Is it making you nervous?

I need to decide whether to keep and use the one I just bought or return it and pop the extra bucks for the Behr.

I was under the mistaken impression that both brands had reinforced the neck area, but apparently only Behr has done so.

I'd appreciate any feedback.

Thanks again,

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Old 07-10-2002, 12:25 AM
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Join Date: Dec 2001
Posts: 565
Well here's my 2 cents.

I've never owned a Nissen, but have spoken with more than one person who has. None felt the quality measured up to the original Behr. In one case, temp. gauge readings went up a bit. I suspect the capacity dimished somewhat in that particular case.

If I were in the market for a new radiator, it would choose Behr.

On a side note, I recently purchased a Wahler thermostat over the WEB, so I didn't get to see what I was buying up front. The construction, finish, etc. is VERY cheap compared to a Behr thermostat.

When it comes to cooling system parts for my MB, there's one company - Behr.
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Old 07-10-2002, 03:39 AM
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Join Date: Jun 2002
Location: Monrovia, CA
Posts: 490
Sleeving Nissens Radiator Neck

Any opinions on sleeving the Nissens radiator neck? (just for peace of mind if nothing else) I seem to recall reading a post where someone had done it, but I can't remember where I saw it.

Can someone tell me what material the sleeve is made of, and the thickness?

Do you think it could be done with just a slight interference fit, or would it be better to glue it in with JB Weld or some such?

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Old 07-10-2002, 07:24 AM
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Join Date: Apr 2001
Location: Southern California
Posts: 1,663
Exclamation It depends....

...on how long you intend to keep your car. If you intend to keep it for a couple of years, Nissen should be fine. If, however, you intend to keep your car for longer than that, I'd spring for the extra money. My mechanic put a Nissen rad in his 300E and it seems to be OK. On the the other hand, he says that he has seen a few Nissen come back because they leaked.
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Old 07-10-2002, 08:08 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
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On my 16V race car I bought a Nissens radiator & the engine ran hotter & after 2 events it started leaking!! Back to Behr for $100 more than the Nissens BUT more than worth it!!!

My car is a 1986 & only 1 year ago I decided to replace the original radiator!! ONLY mistake was not to buy the OE part first!!
We all learn by mistakes.
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Old 07-10-2002, 08:51 AM
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Join Date: Jun 2001
Location: Omaha, NE
Posts: 962
As you can see, the preponderance of the evidence is to go with a Behr. I would wholeheartedly agree. People have burned up perfectly good engines when their radiator necks snapped off while at speed. You can lose virtually all your coolant in a matter of seconds under those conditions, and by the time you realize it it may be too late. Not worth the risk.
'93 400E
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Old 07-10-2002, 09:39 AM
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Join Date: Jul 2001
Posts: 613
Same thing happened to me when my Behr neck snapped. I was told the Nissen was all aluminum but when it arrived the neck was not reinforced. I already had my car down for a week and did not want to wait another week or so for the Behr to arrive so I kept the Nissen.

No problems with the Nissen, no leaks and the fit/finish is ok, I agree that the Behr is a nicer unit. No temp increases either, seems to be the same
1993 500E
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