1998 V70 GLT FWD timing belt change...starting now!

[Sveedy]

20210918_131412_notch.jpg
[/quote]

So in this pic, are things aligned, or does the crank need to rotate a little bit clockwise to the raised casting ridge ?
Re pic by Nevada

[Nevada1906]

20210918_131412_notch.jpg

So in this pic, are things aligned, or does the crank need to rotate a little bit clockwise to the raised casting ridge ?
Re pic by Nevada
[/quote]


Yes, they're aligned. The timing belt pulley and serpentine belt pulley mount only go onto the crank one way - it's physically impossible to do it wrong. Those notches are the only marks on the timing pulley. I rotated the crank so the timing pointer on the oil pump is dead center in the tooth valley between the two notches.

According to the information I have, that's #1 TDC.

[Sufbug]

Ok, I found the cam timing marks.

Having trouble finding the top dead center marks on the crank pulley.

Help anyone?

On the timing belt pulley, there's a tooth with a notch on either side. The red lines indicate the notches on both sides of the #1 TDC tooth. It looks like this:

There's also a raised bar on the pulley mount, which is in line with the TDC notch. It's the silver part in the picture.

Hope this helps.


20210918_131412_notch.jpg

Thank u

When you say -timing belt pulley-. Do u mean the crankshaft pulley-. Probably not......(correct me if I wrong)


Do u mean the gear that is to the right (toward the front of the car) of the water pump?

I have enclosed a pic.


Also, if the cam gears are marked and locked in, why do I care if the crank is at TDC? won't the crank stay steady when I take off the timing belt?


Also, coould I watch cylinder one (closed to the pass fender) to see if the poston is at TDC when the cam gear marks line up?


Thanks all...

[Sufbug]

Ok, I found the cam timing marks.

Having trouble finding the top dead center marks on the crank pulley.

Help anyone?

On the timing belt pulley, there's a tooth with a notch on either side. The red lines indicate the notches on both sides of the #1 TDC tooth. It looks like this:

There's also a raised bar on the pulley mount, which is in line with the TDC notch. It's the silver part in the picture.

Hope this helps.


20210918_131412_notch.jpg

Thank u

When you say -timing belt pulley-. Do u mean the crankshaft pulley-. Probably not......(correct me if I wrong)


Do u mean the gear that is to the right (toward the front of the car) of the water pump?

I have enclosed a pic.


Also, if the cam gears are marked and locked in, why do I care if the crank is at TDC? won't the crank stay steady when I take off the timing belt?


Also, coould I watch cylinder one (closed to the pass fender) to see if the poston is at TDC when the cam gear marks line up?


Thanks all...

[volvolugnut]

As I understand these engine, (someone correct me if I am wrong) the crank does not have a mark for TDC. The crank has a mark only for the cam timing.
I will look for the photo of the timing mark. This is the post you need:
viewtopic.php?f=9&t=92012&p=525446&hili ... ot#p525446

volvolugnut

[Nevada1906]

Ok, I found the cam timing marks.

Having trouble finding the top dead center marks on the crank pulley.

Help anyone?

On the timing belt pulley, there's a tooth with a notch on either side. The red lines indicate the notches on both sides of the #1 TDC tooth. It looks like this:

There's also a raised bar on the pulley mount, which is in line with the TDC notch. It's the silver part in the picture.

Hope this helps.


20210918_131412_notch.jpg

Thank u

When you say -timing belt pulley-. Do u mean the crankshaft pulley-. Probably not......(correct me if I wrong)


Do u mean the gear that is to the right (toward the front of the car) of the water pump?

I have enclosed a pic.


Also, if the cam gears are marked and locked in, why do I care if the crank is at TDC? won't the crank stay steady when I take off the timing belt?


Also, coould I watch cylinder one (closed to the pass fender) to see if the poston is at TDC when the cam gear marks line up?


Thanks all...

Unfortunately, the picture you attached didn't show up.

I was paranoid and bought the cam lock tool the first time I changed the timing belt on my car, and when installed correctly it orients the engine internals to #1 TDC, so that's where the crank is when you remove the belt. There's enough friction on the internals that the crank should stay put while you work. That's why I'm speaking as if you're using the cam tool. I apologize if that's assumptive on my part.

There are three items that live on the crank snout: the timing belt drive gear, what I call the pulley mount, and the serpentine belt pulley. The timing gear goes on first, then the pulley mount and finally the serpentine belt pulley bolts to the mount.

On the timing gear, there're two teeth, right next to each other, that have notches in them. The crankshaft gets rotated until the valley between those two teeth sits on the timing pointer on the oil pump. Get it as close to dead center in the valley as you can.

TMK2Pump.jpg (60.93 KiB) Viewed 587 times

What I would do is shine a nice, bright flashlight down from the top of the engine bay and rotate the engine until the timing belt pulley on the crank, pictured above, lines up and the cam pulley marks aim at the center of the notches in the front cover. You want to aim for the center valley of each notch, but getting it in the notch at all is okay.

58047311 timing marks.jpg (106.46 KiB) Viewed 587 times

Forgive me if I come across as condescending. I don't mean to be - I don't know how familiar you are with this engine and am just trying to be thorough.

[cn90]

We have literally hundreds of TB threads in the forum, not sure why we need another thread, anyway...

- You have oil leak, I replaced the FRONT cam seals using Corteco seals.
I posted the tips/tricks in forum.

[Sufbug]

As I understand these engine, (someone correct me if I am wrong) the crank does not have a mark for TDC. The crank has a mark only for the cam timing.
I will look for the photo of the timing mark. This is the post you need:
viewtopic.php?f=9&t=92012&p=525446&hili ... ot#p525446

volvolugnut

Thanks I will look in that direction in the am

Nevada----thanks, yes please be thorough....it's helping, keep the info coming! I enjoy the very detailed descriptions...

Cn90....just thought I would post my adventure and ask questions along the way, yes I saw the oil leak thread tips and tricks you had. I need to review it after I get over this bump. And your posts have helped me a lot in the past, thanks for that!


Abescate---
Thanks for the direction, and trying to assist.


Fellas, this is a bit of a job for me, (and because it's a 'ruin the engine' if not done right) and the help is much appreciated!

Also, at the same time....
---I changed the front brakes,
----did an oil change (have to top off and remeasure when the TB is done
---put in a new trans mount underneath the car
--- and currently working to get a new engine mount urathane bushing up top near the firewall. (the old one is rusted/melted/stuck..trying like heck to get that out
---- drained a quart out of the transmission (black as black can be, but no burnt smell) and put in a quart of new fresh red fluid. ( The expensive stuff, heard a rumor you can use Toyota trans fluid in these cars, don't quote me)

And hopefully will get a new TCV installed, the heavy duty one from IPD, and do a brake flush, and install a new factory radio. Lots planned here, still much to do.

So tomorrow is another day!


Thanks and gnite 11:54 23:54 EDT , North Carolina

Al aka Surf

[Nevada1906]

As I understand these engine, (someone correct me if I am wrong) the crank does not have a mark for TDC. The crank has a mark only for the cam timing.
I will look for the photo of the timing mark. This is the post you need:
viewtopic.php?f=9&t=92012&p=525446&hili ... ot#p525446

volvolugnut

Thanks I will look in that direction in the am

Nevada----thanks, yes please be thorough....it's helping, keep the info coming! I enjoy the very detailed descriptions...

Cn90....just thought I would post my adventure and ask questions along the way, yes I saw the oil leak thread tips and tricks you had. I need to review it after I get over this bump. And your posts have helped me a lot in the past, thanks for that!


Abescate---
Thanks for the direction, and trying to assist.


Fellas, this is a bit of a job for me, (and because it's a 'ruin the engine' if not done right) and the help is much appreciated!

Also, at the same time....
---I changed the front brakes,
----did an oil change (have to top off and remeasure when the TB is done
---put in a new trans mount underneath the car
--- and currently working to get a new engine mount urathane bushing up top near the firewall. (the old one is rusted/melted/stuck..trying like heck to get that out
---- drained a quart out of the transmission (black as black can be, but no burnt smell) and put in a quart of new fresh red fluid. ( The expensive stuff, heard a rumor you can use Toyota trans fluid in these cars, don't quote me)

And hopefully will get a new TCV installed, the heavy duty one from IPD, and do a brake flush, and install a new factory radio. Lots planned here, still much to do.

So tomorrow is another day!


Thanks and gnite 11:54 23:54 EDT , North Carolina

Al aka Surf

Absolutely, no problem. And the thread mentioned by volvolugnut is precisely how I lined up my engine, and what I said to you about where to locate the crank. That extension on the front of the oil pump functions as a timing pointer.

[Sufbug]

Once ya see it....

You can't UNSEE the timing marks on the crank gear..and how they match up to the engine block. Which from reading , is the oil pump.

The marks are on the crankshaft timing gear ... The side of the gear CLOSEST to the engine block.