1998 V70 Timing belt, cylinder head work 330k miles!

clifford06 · Post by **clifford06** » 04 Jul 2015, 13:31

Greetings. 5rivers that head looks awesome. I finally pulled my head and hope I can get it to look as good as yours does.

5rivers · Post by **5rivers** » 05 Jul 2015, 09:07

Thanks, clifford06! I used a combination of mean green, simple green, and purple power bought in gallon containers; soaked the head in a large plastic storage bin, and used 4 brass bristled brushes! (Try saying those last three words ten times!) As long as you are patient, your end results should make you proud! Good luck with that.

I am about to give the piston walls another cleaning, but I thought I would ask for recommendations. I know I should not use a scouring pad, or anything abrasive; that leaves me with cotton balls and q-tips! Any particular cleaning agents that folks prefer (aside from acetone)? Appreciate any/all suggestions

Post by **Ozark Lee** » 05 Jul 2015, 12:54

Just leave the cylinder walls alone. A soft cloth to wipe away any residual oil / coolant.

...Lee

5rivers · Post by **5rivers** » 07 Jul 2015, 13:02

Thank you, Lee!
I ended up blowing out the cylinder with my leaf blower (after sanding the top portion of the lower engine that the head sits on - there was a dip in the middle) - works really well!!

So, now I am about to move the head from my work station to the motor, and needed to open up a new gasket kit to pull out the head gasket. I will install the rings that are situated around the spark plug holes on the bottom of the head, then install the thermostat and its gasket.

I have new gaskets/seals for each of the camshafts, the intake and exhaust manifolds, the exhaust manifold to exhaust pipe gasket, the gasket for the water pipe at rear of motor. Now I have three seals left that I cannot remember where they sit, one is an o-ring about an inch and a half in diameter, another is a large flat washer-like seal (almost like the one that goes into the oil fill cover) that is two and one-eight in diameter, the third is the same size as the large flat washer-like seal, but has a groove inside of it, like it is supposed to go around something that is thin.

I will attach a pic shortly. Appreciate any/all replies. What I don't want to do is miss something before putting the head on, and end up having to take it off because I could not remember the location of the seals. TIA for your help on this!

5rivers · Post by **5rivers** » 07 Jul 2015, 13:05

: Three seals (one o-ring, two seals); Three seals.jpg (70.36 KiB) Viewed 893 times

5rivers · Post by **5rivers** » 07 Jul 2015, 13:28

In the pic above, the bottom seal with the groove in it, is for the thermostat.

5rivers · Post by **5rivers** » 07 Jul 2015, 13:32

In the pic above, the top seal is the same size as the oil fill cover seal. I am guessing this new seal goes there.
The smaller o-ring's location is still a mystery!

Post by **erikv11** » 07 Jul 2015, 13:34

Bottom one looks like a thermostat gasket.

Where are these seals coming from? If you bought some kind of a kit, it is very common for the gasket kits to have extra parts in them.

On the cam seals, Corteco and SKF are known to last a long time and most other brands are known to last very little time at all.

5rivers · Post by **5rivers** » 07 Jul 2015, 14:08

Yes, erikv11, it is a kit; made by Elwis. The camshaft seals do have numbers and capital letters, the two groups of letters are: MFC and TCR (and numbers are 1.750, 2.250, and 0.265, and then a 7) on the larger seals; MFC and SC (numbers are 30, 47,and 19) on the smaller seals, but I am not familiar with TCR or SC, or what they mean. They are, however, the same size seals as those I took off the camshafts.

Post by **FLXC90** » 07 Jul 2015, 15:05

Just a total WAG but, is the o-ring about the size for the dipstick tube or vacuum tree?

1998 V70 Timing belt, cylinder head work 330k miles!

Re: 1998 V70 Timing belt, cylinder head work 330k miles!