How to change cam seal on 3SFE engine?

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Old 15 Nov 2006, 10:45 pm   #1 (permalink)
geronimo
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Default How to change cam seal on 3SFE engine?



I know there is some special tool to do this...does this come only
from a Toyota dealer and is it expensive? What to ask for exactly?
Also is a special tool needed to pull the camshaft pulley, and is it
lock-tite'ed or usually dificult to remove?

I changed the oil pump recently, and that stopped the oil leak from
teh crankshaft seal....but now it is starting to leak from the
camshaft seal.
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Old 16 Nov 2006, 09:48 am   #2 (permalink)
Daniel
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Default Re: How to change cam seal on 3SFE engine?

geronimo wrote:
> I know there is some special tool to do this...does this come only
> from a Toyota dealer

=========
Found one at toolsource.com for under $50. You may be able to find one
elsewhere for less.
Once the bolt is removed the cam sprocket should be easy to remove.
(unless it is like your crankshaft pulley :?) -- cam sprocket should
just lift off.
The tool is to press the new seal in place where the strut tower limits
clearance.
The tool makes it so simple you're done in a matter of moments.
It is a "cup" shape, with a threaded bolt in the center. Supposedly
works with a variety of engines from different manufacturers including
Toyota.

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Old 19 Nov 2006, 12:44 am   #3 (permalink)
johngdole@hotmail.com
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Default Re: How to change cam seal on 3SFE engine?

The seals are in the sockets tight and the clearance on the camshaft
side is very tight. So the larger Sears #00999814000 hook puller $10.99
won't fit.

I'd used my "special tool" called a taped flathead screwdriver. But to
gain better leverage on the seal you might want to consider Sears oil
seal puller #00947091000 $9.49. I haven't tried this but want to buy
one of these for the next oil seal.


geronimo wrote:
> I know there is some special tool to do this...does this come only
> from a Toyota dealer and is it expensive? What to ask for exactly?
> Also is a special tool needed to pull the camshaft pulley, and is it
> lock-tite'ed or usually dificult to remove?
>
> I changed the oil pump recently, and that stopped the oil leak from
> teh crankshaft seal....but now it is starting to leak from the
> camshaft seal.


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Old 19 Nov 2006, 09:06 am   #4 (permalink)
geronimo
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Default Re: How to change cam seal on 3SFE engine?

Thanks John...will see if the local Sears store has one.

On 18 Nov 2006 22:44:01 -0800, johngdole@hotmail.com wrote:

>The seals are in the sockets tight and the clearance on the camshaft
>side is very tight. So the larger Sears #00999814000 hook puller $10.99
>won't fit.
>
>I'd used my "special tool" called a taped flathead screwdriver. But to
>gain better leverage on the seal you might want to consider Sears oil
>seal puller #00947091000 $9.49. I haven't tried this but want to buy
>one of these for the next oil seal.
>
>
>geronimo wrote:
>> I know there is some special tool to do this...does this come only
>> from a Toyota dealer and is it expensive? What to ask for exactly?
>> Also is a special tool needed to pull the camshaft pulley, and is it
>> lock-tite'ed or usually dificult to remove?
>>
>> I changed the oil pump recently, and that stopped the oil leak from
>> teh crankshaft seal....but now it is starting to leak from the
>> camshaft seal.


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Old 19 Nov 2006, 09:27 am   #5 (permalink)
Daniel
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Default Re: How to change cam seal on 3SFE engine?


johngdole@hotmail.com wrote:
> The seals are in the sockets tight and the clearance on the camshaft
> side is very tight. So the larger Sears #00999814000 hook puller $10.99
> won't fit.

=======
You need a seal tool to press in the new seal.
There is no metal backing like the crankshaft oil seal. I didn't have
any trouble removing it with a standard hook tool. Just poked a hole in
the seal and yanked it out.
The rub comes in trying to fit the new seal. There's no room to drive
it in so you need the special tool to press it in correctly.
I've read you could also try removing a cam bearing cap to install the
new seal, but then you need to seal the bearing cap against leaks
because the leading edge has sealant.
Rather than mess with that, I bought the seal installer.

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Old 19 Nov 2006, 02:17 pm   #6 (permalink)
geronimo
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Default Re: How to change cam seal on 3SFE engine?


Well, I absolutely don't want to open up engine and remove a bearing
cap to change it...but I think you said this special tool cost about
$50? Too high for a tool that I may never use again. Can you help the
seal into place with a short piece of PVC pipe of the appropriate
diameter maybe? (I guess that this special tool is circular, so it
applies even pressure all around to seat it..I guess). but then it is
so close to strut tower, I would imagine you can't tap on the pipe.
Anyway, there is no way to home-brew this tool? Is there a picture of
it somewhere?

You know there is something wierd about the way the car is timed. THe
car runs perfectly, must be timed OK. I had it timed professionally
after making the major repair (oil pump, water pump, crankshaft seal,
timng belt replacement). Well, now I have an Equus timing light. So I
decided to see how the mechanic had set it. However at idle (and yes
I am on #1 cylinder!), the damper mark is at the very aft edge of the
timing index protruding from the lower cover. That is not marked...it
only goes to + 15...but the aft edge would be about 20 deg.! And then
when you go to high RPM, it moves aonither inch or more towards
aft/counter-clockwise. There was no sign of the damper pulley not
being the original one....but perhaps, if it had been replaced with
one with the notch in a difference place, that would explain this? I
wonder if the crank sprocket is lining up with TDC? I see now why
setting the timing according to the Haynes book didn't work!
When I do the cam seal replacement, I am going to have to be very
careful to put new timing marks with white-out or something so I don't
mess up the timing!



Thanks, geronimo


On 19 Nov 2006 07:27:11 -0800, "Daniel" <nospampls2002@yahoo.com>
wrote:

>
>johngdole@hotmail.com wrote:
>> The seals are in the sockets tight and the clearance on the camshaft
>> side is very tight. So the larger Sears #00999814000 hook puller $10.99
>> won't fit.

>=======
>You need a seal tool to press in the new seal.
>There is no metal backing like the crankshaft oil seal. I didn't have
>any trouble removing it with a standard hook tool. Just poked a hole in
>the seal and yanked it out.
>The rub comes in trying to fit the new seal. There's no room to drive
>it in so you need the special tool to press it in correctly.
>I've read you could also try removing a cam bearing cap to install the
>new seal, but then you need to seal the bearing cap against leaks
>because the leading edge has sealant.
>Rather than mess with that, I bought the seal installer.


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Old 20 Nov 2006, 08:54 am   #7 (permalink)
Daniel
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Default Re: How to change cam seal on 3SFE engine?

geronimo wrote:
> You know there is something wierd about the way the car is timed. at idle (and yes
> I am on #1 cylinder!), the damper mark is at the very aft edge of the
> timing index protruding from the lower cover. That is not marked...it
> only goes to + 15...but the aft edge would be about 20 deg.!

==========
On the next generation, you need to use a jumper wire (paper clip) at
the DLC1 prior to checking timing. Could be similar on yours. This
disables the electronic advance and enables you to correctly check the
base timing. When doing this the check engine light in the instrument
panel flashes until you later remove the wire.
To fabricate your own cam seal tool, you would need a bolt that threads
into the end of the camshaft and a flat plate to fit over your
correctly sized pipe to match the seal diameter. That way you could
apply the pressure to push in the seal by threading in the bolt - there
is no room to drive it in with a hammer, hence the need for a special
tool.

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Old 20 Nov 2006, 10:59 pm   #8 (permalink)
geronimo
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Default Re: How to change cam seal on 3SFE engine?



Or instead of a bolt, one might be able to use two pieces of threaded
rod joined together with one of those threaded unions that would
shorten or lengthen as you turn the union.....the adjustable rod
pushing against the strut tower?


On 20 Nov 2006 06:54:49 -0800, "Daniel" <nospampls2002@yahoo.com>
wrote:

>geronimo wrote:
>> You know there is something wierd about the way the car is timed. at idle (and yes
>> I am on #1 cylinder!), the damper mark is at the very aft edge of the
>> timing index protruding from the lower cover. That is not marked...it
>> only goes to + 15...but the aft edge would be about 20 deg.!

>==========
>On the next generation, you need to use a jumper wire (paper clip) at
>the DLC1 prior to checking timing. Could be similar on yours. This
>disables the electronic advance and enables you to correctly check the
>base timing. When doing this the check engine light in the instrument
>panel flashes until you later remove the wire.
>To fabricate your own cam seal tool, you would need a bolt that threads
>into the end of the camshaft and a flat plate to fit over your
>correctly sized pipe to match the seal diameter. That way you could
>apply the pressure to push in the seal by threading in the bolt - there
>is no room to drive it in with a hammer, hence the need for a special
>tool.


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Old 21 Nov 2006, 08:45 am   #9 (permalink)
Daniel
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Default Re: How to change cam seal on 3SFE engine?

geronimo wrote:
> Or instead of a bolt, one might be able to use two pieces of threaded
> rod joined together with one of those threaded unions that would
> shorten or lengthen as you turn the union.....the adjustable rod
> pushing against the strut tower?

=========================
Why overly complicate it?
If you try to push against the strut tower, you're going to be using an
angled surface and push the tool out of position.
Once you get everything lined up, it is a very simple process to
install the seal. It takes very little force and doesn't have to move
very far.
The key is getting the right size to exactly match the seal, and make
sure it is exactly aligned to press on the seal only.

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Old 21 Nov 2006, 09:47 am   #10 (permalink)
geronimo
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Default Re: How to change cam seal on 3SFE engine?


Oh.....I get it now. Won't have to force it once it is lined up& not
crooked. Guess what I'll be busy doing over the Thanksgiving holidays?
The seal job, and replacing the steering rack. Should be interesting,
I have never replaced a rack before. The pain in the rear is having
to remove the center engine mount and cross-member again. Happy
Holidays, Geronimo


On 21 Nov 2006 06:45:18 -0800, "Daniel" <nospampls2002@yahoo.com>
wrote:

>geronimo wrote:
>> Or instead of a bolt, one might be able to use two pieces of threaded
>> rod joined together with one of those threaded unions that would
>> shorten or lengthen as you turn the union.....the adjustable rod
>> pushing against the strut tower?

>=========================
>Why overly complicate it?
>If you try to push against the strut tower, you're going to be using an
>angled surface and push the tool out of position.
>Once you get everything lined up, it is a very simple process to
>install the seal. It takes very little force and doesn't have to move
>very far.
>The key is getting the right size to exactly match the seal, and make
>sure it is exactly aligned to press on the seal only.


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