I like the metal web between the cylinders, too but that's definitely a bolt hole on the gummy one. I'd use it.

But, if you don't, I'd trust anything from Lucky 8.

I'll throw in, just to irritate everyone, that I once used copper coat gasket spray on both sides of some head gaskets as an experiment. When I had to remove the heads for other reasons I had to use an engine crane to get them apart (no kidding... and I had the engine OUT... a large rubber mallet and even more drastic means I will not admit to in writing would not separate them from the engine). That's a stout seal. I didn't use it on the reinstall though because getting them apart to do gaskets with the engine in the Rover would, in my imagination, been more than difficult. To further rouse the rabble, I wish you'd use studs instead of bolts. It makes positioning the heads so much easier and they pay for themselves next time you do the gaskets.

 

Looks like you are getting it done.

Here are some pictures from when I did this 4 long years ago...
In a parking lot.
Took two weeks

https://www.flickr.com/photos/76579732@N07/

 

Parking lot! You must be the landlord. Haha! Thats great job! No leak yet after 4 years! I thought this will be easy, my wife is so pissed now coz I started the repair with her car in the driveway and stuck there until Im done. But she agreed to use my other dico and she said it was cool for a while. Im now afraid she might like it. So, its been raining here for 2 days straight and hopefully finish this tomorrow.

My son adding to the damage. Lol

 

We completed the HG job and finally reached the moment of truth. After 3 tries, it started. My only concern at the moment is why the serpentine belt is too loose. Is it common after installing all back? Or i never noticed before, just needed a new belt?

 

Should be no slack -- the tensioner should be taking it all up. Make sure you have everything routed and positioned correctly.

 

Sounds like the tensioner is not bolted into its resting place, there is a dowel that fits into the bracket.

 

I remember that the truck was squeaking badly before the HG replacement. Also, i forgot the tensioner outside in the rain for days coz i will replace it anyway. I ordered a replacement thinking that needed to be replaced but didnt arrive in time.
On the other hand, is it uncommon after the HG work that the Service engine light started flashing? Is it possible that the engine didnt have enough time to warm up yet? I sint want to get it running for long time since the belt is loose. Thanks

 

Flashing light means misfires.

 

No, you shouldn't have a flashing light. You need to get the codes with a code scanner.

That belt shouldn't be loose at all. Squeaking and a loose belt are probably not connected. For squeaking, the easiest fix is if a pulley is not right, so check those. If you idle the engine while standing next to it, state down at the pulleys and see if any are wobbling. That can cause a squeak. But if it was squeaking before and they are right, pull the fan and use some WD 40 with the straw on it (fan off) and spray a little I'm the center of each pulley while it is running. That will a show you which is squeaking.

For the slack, the tensioner pulley must not be on right or the belt is routed wrong.

 

Just be careful around that tentioner, especially if you suspect it is damaged. I had a tentioner come a part on a Max Force diesel engine just last week, blew shards of spring steel into the fiberglass tilt hood a good quarter inch. I'd just had my head in there seconds earlier. Yes, I had safety glasses on...but my heart kind of sunk when I thought about the damage one of those pieces of steal could have done if it connected with that.

So, used extreme care around a running engine.

Brian.