Re: Clacking Noise.....

[Andrew Duane USG/PE <duane@zk3.dec.com>]

Hairy green toads from Mars made Christopher Ice say:

> Last I remember, the Fram non-turbo model did NOT have the check valve and
> the turbo model DID.  Also seem to remember that the turbo and non-turbo
> Fram filters are interchangeable...so you could just put the turbo model on
> the non-turbo to ensure the check-valve is there.

Frams for the non-turbos do NOT have the check valve. It's easy
to see; look down the central threaded hole, and it's either there
or it's not.

The Mahle filters from Imparts have them (about $5), and are good
solid construction - at least twice the weight of a Fram. Mann filters
have them ($ unknown - mine was included in a change), and look identical
to the Mahle. The OEM brand filters I mentioned earlier also have them
and also look identical to the Mahle.

I don't notice a huge difference in noise between valve/no-valve,
but I usually don't listen that well.

-- 

Andrew L. Duane (JOT-7)			duane@zk3.dec.com
Digital Equipment Corporation		(603)-881-1294
110 Spit Brook Road			http://www.zk3.dec.com/~duane
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and she clatters at birds outside.