Ever
since I let my 87 sit in the garage for 3 months, I have been
experiencing very noisy lifters. It's not just one, but a couple on
each
side. It does it all the time, not just at startup. Before
letting it sit
for so long, I never had this problem.
On the 928OC tips section, someone recommended using a commercial "top
oil"
like Risolone. Has anyone had any success with this or any other
additives?
Short of replacing the lifters, is there anything else that can be done to
fix the problem?
Thanks,
Randy
============
Randy,
I have a lifter that gets noisy. I tried Risolone with no improvement. A
local mechanic recommended Lucas Oil Treatment and it quiets it down. Changed
oil last week and it got noisy again. Added Lucas yesterday and it is quiet
again today. Guess I'll have to add it with each oil change. BTW I am not
connected to Lucas in any way.
Dennis Wilson
==============
Hey
randy
A while back when i did all my intake.. flappy valve.. oil check valve work
the car sat for about 2 months. When i first fired her up i about died!!
Sounded like i left a tube of BB's or a socket in the engine!!
CLATTER...TICK TICK TICK.. CLATTER CLATTER...
I knew the upper parts of the engine had been DRY with out oil for some time
and i may get that sticky lifter noise back again....but it was horrible!
Lasted about 5 minutes...then all of a sudden it got quieter and quieter...
but was still there. I eventually went for a good HARD test drive and as i
parked the car to check a few things the little bit of clatter that was left
disappeared and has NEVER come back!
During my work i saw my oil check valves were quite "gummy"....
I would try an oil change first and see how that goes...but you may find
that the problem will go away as you drive the car regularly again
Tony
I' ve heard of folks putting a bit of tranny fluid in with the oil...but not
in a 928 though! I guess it is supposed to "clean things out a bit"???
=============
From:
Tony H <v1uhoh@hotmail.com>
Subject: [928] Re: Noisy Lifters
> I've heard of folks putting a bit of tranny fluid in with the oil...but not in a 928 though! I guess it is supposed to "clean things out a
bit"???
Works just fine in the 928. Put it in, drive like a lunatic for about 30
miles (very high rpm) then change the oil.
wk
============
Walt,
How much is a "bit" of tranny fluid? Is it anything like a
"pinch"?
Thanks,
Randy
=============
From:
Randy Page <randy.page@pagetechnology.com>
Subject: [928] Re: Noisy Lifters
> Walt,
>
> How much is a "bit" of tranny fluid? Is it anything
like a "pinch"?
Nope, more like a "dash"......
A couple of years ago, my motor was about 1/2 quart low on oil (loose oil pan
bolts, bad oil pan gasket), and had been making the lifter noise for some
time. I put in a full quart of ATF, drove the hell out of it for about 30
miles, the drained the oil, changed filters, etc, and it's been quiet ever
since.
wk
=============
In
order to keep the valve body squeaky clean transmission oil has stronger
detergents than engine oil, so yes, it sometimes works to free-up stuck
lifters. I would think a quart is no big deal as transmission oil is
basically about 5W30 oil and won't change the viscosity very much. If
I
were doing it I wouldn't even bother to change the oil again real quick,
although don't send me the bill if you blow it up.
Gary Casey
===========
>.
I would think a quart is no big deal as transmission oil is basically about 5W30 oil and won't change the viscosity very much. If
I were doing it I wouldn't even bother to change the oil again real quick, although don't send me the bill if you blow it up.
Lets see...
You put tranny juice in, loosen up crud, then DON'T change oil and filter
real quick?? At least change the filter!!!
Reminds me of a friend whom religiously chemical flushed the cooling
system of every used car he purchased...then wondered why every used car
he owned lost freeze plugs within the 1st year of ownership!
My local Porsche dealer does a $46 oil systems flush. They use
lightweight oil and pump it through the system until filtered wash oil is
clear. Flush pump doesn't exceed normal oil pressure. If my valve train
were noisy I would flush by machine rather than additives. In fact, since
learning of high rpm/g #2 & #6 bearing failure, I may get flushed just
because it has 85000 and do not really know PO abuse.
Richard
==========
<<Ever
since I let my 87 sit in the garage for 3 months, I have been
experiencing very noisy lifters. It's not just one, but a couple on
each side. It does it all the time, not just at startup.
Before
letting it sit for so long, I never had this problem. On the 928OC tips
section, someone recommended using a commercial "top oil" like
Risolone.
Has anyone had any success with this or any other additives? Short
of
replacing the lifters, is there anything else that can be done to fix
the problem?>>
Randy,
Common 928 problem - used to happen to my 87 all the time. Add about 1
quart of automatic trans fluid to your engine oil and take the car out
for an extended cruise (25 minutes or so). Drive the car fairly hard
and take it to redline a few times. Change your oil within 500 or so
miles and your problem will be gone!
Brian
--
Brian E. Buxton
========At 04:43 AM 12/6/2003, Theo Jenniskens wrote:
Wally,
My car has developed a ticking sound that seems to originate from the lifters too. It only happens when the engine is warm and the engine is idling in gear. Its fine when the engine is cold. As soon as the rpm increase the sound also disappears, just as if the oil pressure is too
low. The dash indicator may not be completely reliable, but it stays at 2 when idling at 800rpm. I seem to hear only one lifter estimating from the frequency of the sound.
Any suggestions? Is there a way to find out which lifter is causing it?
Maybe something else besides a lifter?
Thanks
Theo
'88 928s4 a/t cherry red
The Netherlands
http://928s4.no-ip.info
One possibility is that the cam bearing oil plugs have slipped out and need to
be replaced. The S4 and later engines have shorter camshafts, and there are
plastic plugs inserted in the oil holes in the unused bearing saddles.
If these plugs slip out, the resulting oil leak can lower the oil pressure
enough to cause lifter noise.
It might be worthwhile pulling the cam covers to check. If so, I would install
the newer metal oil passage plugs, clean the check valves, paint the covers,
etc.
Wally Plumley
928 Specialists
www.928gt.com
