Chevy 350 main bearing replacement procedure
Robert W. Buster
GUSHING OIL AT THE REAR MAIN SEAL. How big a deal is that to resolve and
what steps are involved.
--
Robert W. Buster
George B
If it is a 4x4 it is more of a problem since you have more "stuff"
around the underside of the engine.
If it is 4x2 (regular two wheel drive 4 wheels - 2 driven) you might
be able to drain the oil, unbolt the motor mounts, jack up engine,
place blocks of wood in the motor mounts (this gives you clearance
from any crossmembers ... maybe even enough). remove oil pan, replace
seal using procedure in your maintenance manual, (85 should use the
old two-piece seal ... I think that the one-piece started in 86).
replace the pan, secure the mounts, ADD OIL, test. You will need a new
pan gasket ... don't forget. You can also use Ultra-Black or the GM
black silicone if you want to go that route. (I use the black on any
application that seals oil, I use Ultra-Copper otherwise).
George Bonser
gr...@cris.com
See Santa's Home Page!
Something special for the little ones on the Internet!
Check out http://www.cris.com/santa
ronald tyrie
not coming from the oil pressure sending unit (located beside the
distributor). It is much more common for these units to start leaking
drastically than for the main seal to blow out. The leaked oil would go
down the back of the engine and appear to be from the crank seal.
Hint - use the special sending unit socket if you have to replace it, a
regular socket wont fit.
Hope this is helpful
Ron Tyrie
Chris J. Poche
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Chris J. Poche
Terence T. Lung
on their car? After seeing some of the fiber optic video
technology available for workstations, the idea of installing
a fiber optic cable onto a periscoping antenna, stabilized
with guide wires to say 14' high seems kind of fun. It seems
like a fun option for looking over in front of trucks and
vans in rush hour traffic when you run out of better things
to do.
Terence
Ron Miller
: Has anyone out there ever considered installing a periscope
: Terence
I used one extensively in a submarine.
Believe me, it's not worth it.
Ron Miller
George B
>Terence T. Lung (lun...@gus.ecn.purdue.edu) wrote:
>: Has anyone out there ever considered installing a periscope
>: on their car?
>: Terence
>I used one extensively in a submarine.
>Believe me, it's not worth it.
>Ron Miller
Well, if I could add fiberoptic guided water balloons as a waepons
system ... naaa.
George Bonser
gr...@cris.com
HEY I ACTUALLY TOOK A DAY OFF!
Dan N. Bernardo
|> Terence T. Lung (lun...@gus.ecn.purdue.edu) wrote:
|> : Has anyone out there ever considered installing a periscope
|> : on their car?
|>
|> Believe me, it's not worth it.
Why? (Could be an entertaining explanation.)
Dan
----------------------------------------------------------------------------
Dan N. Bernardo | The opinions expressed
bern...@think.com | herein are not those of
http://www.think.com/users/bernardo/ | Thinking Machines Corporation.
John Paramore
On 13 Dec 1995, Terence T. Lung wrote:
> Has anyone out there ever considered installing a periscope
> on their car? After seeing some of the fiber optic video
> technology available for workstations, the idea of installing
> a fiber optic cable onto a periscoping antenna, stabilized
> with guide wires to say 14' high seems kind of fun. It seems
> like a fun option for looking over in front of trucks and
> vans in rush hour traffic when you run out of better things
> to do.
>
> Terence
Darn! I'd kind of favored a roof mounted 105 recoilless rifle, but your
idea takes care of the reload and littering concerns. :-)
John
Small Block
To change the rear main seal is not an easy task the easiest way is to
pull the motor, put it on a stand,
and perform the operation. However this may be impractical in most
cases. Because you have a truck
you have extra ground clearance and since you stated the year as 85'
you dont have to pull the engine
out after all. You can change the seal by doing the following.
1. Disconect the negative battery cable
2. locate and remove the motor mount bolts. this will allow you to
raise the motor to get the pan off.
3. Drain the oil and remove the oil pan attaching bolts. You may also
want to remove the oil filter for
additional working room.
4. Lift the motor up in the engine bay. there are several ways to do
this, the prefferd method is and engine hoist, you can also use a
floor jack and a 2x4 and pick the motor up by the harmonic balancer.
You should excersie cation in this step not to bind anything! It is
possible to damage several components by overextending or stretching
hoses and wires. also note the trans. will move to so pay attention to
the trans tunnel clearance, its close quarters but it will work.
5. Carefully remove the oil pan and move to a clean dry sopt. Don't
drop, pry, or bend the pan as they cost about 70-150$ to replace.
6.Remove the oil pump from the rear bearing cap, it's held on by one
5/8 bolt and 2 locater pins. You may have to tap it to free it, the
pump will come strait down and have a long shaft with a notch in the
end.
the distribtor drives the oil pump and the notch must line up for the
pump to reinstall properly.
7. Remove the rear main bearing cap. the rear main seal it a two piece
design, half in the cap the other in the block. Press out the cap half
with your thumb, note the direction the seal lip faces and install the
new one in the same way (lip starts at the back and rises to the
frount of the motor) as incorect instalation will result in a worse
leak than before!
The second half in the block will reqire a little more effort! First
lossen all other main caps 1 turn per bolt, this will give the crank a
little play, CAREFULLY AND GENTLY push the top half out with a wood
stick to prevent jounal damage. Once the end of the seal is showing
grab with pliers and carefully work out the old seal. Install the new
half noting lip direction and gently work in, do not force, if it
won't go lossen the caps a little more and pull down on the crank.
once the seal is in place it should be flush with the surface, apply a
very small amount of RTV to the ends and reinstall rear main cap.
8. Retourq all the main caps in a circular pattern starting with the
center cap then the 2 and 4 cap and finally the 1 and rear main caps.
Do this in steps increasing by 20 foot lbs. a step untill final tourq
is obtained.
9.the rest is reverse of removal. while I would sujest a new oil pump
while you have it off!
If you need more info e-mail me at sbl...@intersurf.com
>Robert W. Buster
Ron Miller
: |> I used one extensively in a submarine.
: |> Believe me, it's not worth it.
: Why? (Could be an entertaining explanation.)
But it won't be. Not in a very creative mood at the moment.
Primary thoughts are: restricted field of view
mechanical problems of stowage/retraction
(a sub scope is a SOLID tube that is moved not
collapsed)
eyestrain
aero drag
weight
low bridges
etc.
Slow dancing with the one-eyed lady will make you crazy. She won't be
riding in my car :-)
Ron
Andy Dingley
>Has anyone out there ever considered installing a periscope
>on their car?
Anyone else remember those rear-view periscopes that were popular for
towing caravans in the UK, about 20 years ago ? They were a clamp-on
fit, at the top of the windscreen looking rearwards. I never worked
out if they were meant to look over the caravan, with a wider view
past it, or through the caravan windows.
--
Andy Dingley din...@codesmth.demon.co.uk
alt.flame - Making the world a safer place for postal workers.
Chris Wilson
Dingley) wrote:
>lun...@gus.ecn.purdue.edu (Terence T. Lung) wrote:
>
>>Has anyone out there ever considered installing a periscope
>>on their car?
>
>Anyone else remember those rear-view periscopes that were popular for
>towing caravans in the UK, about 20 years ago ? They were a clamp-on
>fit, at the top of the windscreen looking rearwards. I never worked
>out if they were meant to look over the caravan, with a wider view
>past it, or through the caravan windows.
>
I have to admit, I remember these things.You were supposed to look
<through> the caravan.We took one off a customers car and used it for
looking into..., well, not for its original purpose anyway.
I see the Japs have been marketing rear CCTV for the Winnies and
things.I just get the wife to leg it round the back, and shout, much
cheaper!
Regards,
Chris Wilson.
(Gatesgarth Racing Developments)
Gatley,Cheshire,England.