Need a writeup on

[sonyman87]

a 99 buick regal 3100 intake gasket replacement.

 

i have a friend who has a 3100 and is leaking coolant i told him its his intake gaskets and sure enough there is coolant in the valley wall. i just got done searching and form what i have read in some places it says $120 in parts! wtf..

someone help this poor man out and get me some basic instructions.

[slick]

Lower intake gasket I assume. First time doing it, you will probably spend a good day doing it (8-9 hours of work).

 

As for write ups, lemme do a quick search.

[slick]

http://www.60degreev6.com/modules.php?op=modload&name=Pushrod&file=index&req=viewarticle&artid=18&page=1

 

Then....

 

 

http://www.60degreev6.com/modules.php?op=modload&name=Pushrod&file=index&req=viewarticle&artid=17&page=1

 

 

Now, you obviously don't need to remove the heads, so stop there.

[manitcor]

id say $120 after all said and done maybe more

 

Upper intake gaskets (reusable if your careful) $15

Lower intake 25-35

Lower intake bolts (required to go to the new desgin) $35

RTV $3

T-Stat w/ gasget $5

Coolant $10-$15

Enough oil for 2 oil changes Oil $12-$50 (depending on your brand and quailty of choice)

EGR Gaskets $5 (might as well do them while your there)

Injector O-Rings $5 (ditto, not neccassary though, im just kinda anal)

Sea Foam or GM top Engine Cleaner $3 -5

Cardboard box $0 (youll see what its for when you get there)

 

Drain all coolant from the car as possible (makes things less messy later)

DISCONNECT THE BATTERY

De-Pressurize the fuel system

Disconnect front wires (you can leave the rears connected)

Remove Coil packs and set aside

Unbolt lower intake

Unbolt Egr move egr out of the way

pull off upper intake and set on drivers side strut brace upside down (or if you want dissconted the cables and take it all the way out of the car.

CAREFULLY remove upper intake gaskets (inspect for cracks and leaks)

Unbolt Fuel rail disconnect fuel injector harness

remove fuel rail and set aside with fuel lines still connected (you can dissconect them if you want, not really neccassary, requires special fuel line tool)

Disconnect upper rad hose

Unbolt coolant neck

remove t-stat

unbolt lower intake

Remove lower intake carefully (you may need to loosen or remove the PS pump to do this)

Loosen rocker arms (DO NOT REMOVE THEM)

Remove pushrods (this is what the box is for, the orientation and position of the pushrods must go back to where they were beofre. I normally write on the box Cyl 1, Cyl2 and then push them through the box with the correct end pointing down)

remove old gasket

carefully scrape up all the old rtv

clean up any excess fluid

clean all gasket surfaces and make sure they are smooth and clean

install new gasket

lay new rtv

reinstall everything

wiait 24 houts for the RTV to set

change the oil

put in fresh coolant

run the car

bleed the cooling system

run a can of GM top engine clean or sea foam trough the engine

have fun with the huge smoke cloud

after all the smoke stops

change the oil again

 

ensure there are no leaks and everything is clean and working

 

test drive

 

Be paitent, take your time, do it right, read the directions carefully.

 

GET A HAYENS BOOK IT WILL WALK YOU THROUGH THIS WITH MORE DETAIL THAN I JUS DID.

 

 

Thats off the top of my head, i prob missed something but it gets you started

[manitcor]

DOH, I complety forgot 60v6 had a write up on this already

[sonyman87]

http://www.60degreev6.com/modules.php?op=modload&name=Pushrod&file=index&req=viewarticle&artid=18&page=1

 

Then....

 

 

http://www.60degreev6.com/modules.php?op=modload&name=Pushrod&file=index&req=viewarticle&artid=17&page=1

 

 

Now, you obviously don't need to remove the heads, so stop there.

 

do those steps hold ture on a 3100?

[manitcor]

http://www.60degreev6.com/modules.php?op=modload&name=Pushrod&file=index&req=viewarticle&artid=18&page=1

 

Then....

 

 

http://www.60degreev6.com/modules.php?op=modload&name=Pushrod&file=index&req=viewarticle&artid=17&page=1

 

 

Now, you obviously don't need to remove the heads, so stop there.

 

do those steps hold ture on a 3100?

 

for the most part, yes, my steps are 3100/3400 specifce but its very much the same process.

[sonyman87]

OK cool i will give that to him.. i seen 60degreev6 writeup but thats why i asked for one. i seen the 3.1 writeup but i didnt know if that held true for 3x00 motors. you guys RoCK speedy respones 10 points to manicor and slick94prix

[slick]

Yeah, the 2.8/3.1 will mostly hold true to the 3100. There may be minor differences, but nothing crazy. As manticor said, pick up a Haynes manual, as you will need it to correctly torque everything down.

[manitcor]

Yeah, the 2.8/3.1 will mostly hold true to the 3100. There may be minor differences, but nothing crazy. As manticor said, pick up a Haynes manual, as you will need it to correctly torque everything down.

 

ohh almost forgot, dont listen to the torque procdure or specs in the hayes manual there are revised specs from GM, you can have a dealer print out the TSB on the lower intake gasket for the genIII pushrods

 

be sure to get the updated LIM gasket desgins and the updated bolts

 

You can tell if you have the newer desgin if there are metal discs in the gasket. The new bolts have a powder type thread locker on the threads.