Hydraulic Lifters

[aaron youngblood]

I recently tried this on a 1994 Jetta 2.O...at 170k it is kinda clicky and the oil 
pressure light likes to come on....so changed the oil, then changed it again after 1k, 
but before doing so i put a cup of Seafoam in it, and took it for a very modiest drive 
(aka grandpa mode).  Put thicker 10w30 vs 5w30 oil and a container of STP Engine 
Treatment.  It is much better, still sounds like a sewing machine though.


I think I will do the same w/ my 1.8t A4 next time, except that car will continue to 
get Amsoil 5w40 syn.

..aaron

-SABIS Educational Systems Network Administrator
--Carpe Diem

On Tue May 27 14:26 , "Ed Kellock"  sent:

>In the 89 90q which has the NG motor, the clacking can be caused by
>the vacuum pump rod as well.
>
>Ed
>
>
>On 5/27/08, cobram at juno.com cobram at juno.com> wrote:
>> Personal BTDT, don't bother with a flush.  When the I5's sit, the lifters
>> get loud for a while, drive it and sometimes it'll quiet down or go away.
>>  The only thing that worked (and I tried just about everything short of
>> changing lifters) on the 5KS was good ole Marvel Mystery Oil.  I put a
>> quart in (yeah, a bit aggressive) at an oil change and let it work it's
>> magic, the 5KS's engine went quietly on it's way for years after, I'd
>> always add half a quart during oil changes after that too.  I hear ATF
>> has a similar result.
>>
>> On the '89 90Q, NOTHING has worked, even the very pricey German flush I
>> tried, the lifters seem to get to a point sometimes where nothing will
>> bring them back, I bit the bullet and bought the whole lifter set from
>> Autohauz Ariz. for about $7 each on sale.
>>
>> The 200TQA-if she sits for more than a month she'll clack, but the ole
>> girl always quiets down after a couple days of normal driving.
>>
>> Unless you're up to chasing oil leaks, I wouldn't try anything more
>> aggressive than ATF or Marvel Mystery Oil.  The harsher flush agents
>> caused the main seal to start spewing oil on the 5KS, lucky it was
>> overdue for a timing belt anyway so it was no big deal.
>>
>> BCNU,
>> http://www.geocities.com/cobramsri/
>> "God's a kid with an ant farm, lady. He's not planning anything."
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