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Topic Review (Newest First)
02-01-2007 11:49 PM
jimfulco
02-01-2007 12:38 PM
fitzwell dimple the end rail surface of the block & the intake manifold. Lay a bead of P-tex Ultra Black on that surface. THIN bead of silicone around the intake ports, Thin bead of Hylomar around the water ports. Check & retorque at 25 miles, again at about 100 mi. Drive
01-31-2007 02:27 PM
red65mustang the above post (glue and guide bolts) and the following is an attempt to help on a manifold swap with the motor in the car....
probably should have named it "an ounce of prevention can be worth a pound of cure"

if the old manifold did use silicone for the end seals, just scraping and brake cleaner is not enough.....

mark the scraped end seals steel on the block with a magic marker, (cover and protect all, ports and valley) use 60 grit paper and sand till the marker is gone (I use a broken piece of a flat file), then wipe with brake cleaner

now the new silicone has a pristine surface with some bite to adhere to

and do agree, a thin smear of 3M weather strip adhesive does work great
01-31-2007 02:08 PM
Ed ke6bnl
Quote:
Originally Posted by k-star
Unless it's a dirt track team's engine!!!!!L.O.L.

I am with Rick,,not sure where people come up with all these crazy stories but i don't see any way for the glue to ever make it to a valve???

I also use 3m weather strip adhesive.That stuff even held the gaskets on the alcohol late modle engines i built,when most of the other adhesives gave up.


Keith

that 3m weather strip adhesive also serves as a locking material for nut and bolts. Ed
01-31-2007 12:51 PM
66GMC
Quote:
Originally Posted by Rick WI
Never, in over 20 years have I seen that. Never.

Lets use common sense here for a change. The amount of "glue" you are looking at putting on is ONLY enough to hold the gasket in place. Not a whole tube. A thin smear across the surface will not in any way make it to the valves.
Well ... common sense or not, this guy is a Ford Master Tech ... and I'm a partsman that has never done any engine assembly/disassembly to speak of.

So of course I followed his advice ... despite the fact that he calls my 454 a "boat anchor".

Perhaps he was pulling my leg, and I fell for it.
That is his sense of humor.
01-31-2007 07:40 AM
malc I tried using black RTV sparingly, like only on the underside of the intake gaskets around the water ports.
This is what happened.

When I repaired this I used Gasketcinch and RTV on both sides of the intake gasket, and after installing the manifold did not start the engine for 24 hours.
01-31-2007 07:35 AM
302 Z28 Use of RTV on the front and rear is perfectly acceptable. I have done it many times with no problems. One thing that must be done however is once a bead of it is laid down on the engine it must be allowed to skim over or start to harden before the intake is placed on. Both surfaces must be super clean and free of grease. Personally I do not like the cork end gaskets. Earlier small blocks I have seen where people dimpled the block where the cork gaskets go on the block to help hold them in place.

Cince
01-31-2007 05:17 AM
k-star
gaskets

Quote:
Originally Posted by Rick WI
Never, in over 20 years have I seen that. Never.

Lets use common sense here for a change. The amount of "glue" you are looking at putting on is ONLY enough to hold the gasket in place. Not a whole tube. A thin smear across the surface will not in any way make it to the valves.

Unless it's a dirt track team's engine!!!!!L.O.L.

I am with Rick,,not sure where people come up with all these crazy stories but i don't see any way for the glue to ever make it to a valve???

I also use 3m weather strip adhesive.That stuff even held the gaskets on the alcohol late modle engines i built,when most of the other adhesives gave up.


Keith
01-30-2007 09:31 PM
Rick WI Never, in over 20 years have I seen that. Never.

Lets use common sense here for a change. The amount of "glue" you are looking at putting on is ONLY enough to hold the gasket in place. Not a whole tube. A thin smear across the surface will not in any way make it to the valves.
01-30-2007 08:20 PM
66GMC When I got my 454 back from the machine shop, it was assembled to the long-block stage.

When I installed the intake, I started spraying some High Tack on both the intake gaskets and the cylinder heads. I was thinking that it would be best to glue them in place ... so they wouldn't slip around when I was setting the intake into place.

I was advised by one of the technicians NOT to use any adhesive, except (as others have said) a dab of RTV at the corners. He says that he has pulled apart too many engines and found gasket glue on the intake valves ... gumming them up and hardening.

Following his advice, I removed it all with brake clean ... dabbed the corners with RTV, and CAREFULLY set the intake into place.
01-30-2007 07:59 PM
GearJamminHero
Quote:
Originally Posted by 1ownerT
When the intake bolts go through the intake into the head at an angle, you cannot install dowels...there is no way to set the intake over them. If the bolts were to install vertical...then it would be possible.
You could use something a bit more flexible and thin, perhaps pieces of coat hanger or something similiar? Stick it through the corner holes in the manifold, through the gasket and then to the heads. Toss a couple of fasteners into the center pieces then pull the wires out, may make things easier.
01-30-2007 04:31 PM
lowstreet black rtv work well.
Just clean the end rails with brake cleaner.
01-30-2007 04:24 PM
Rick WI
Quote:
Originally Posted by engineczar
To go along with what everyone is saying. Before you run the bead of RTV on the end rails, clean the end rails on both the block and the intake with brake clean. Spray some on a clean rag, wipe and then let it evaporate. This gets rid of any residual oil that may be there. RTV is great but doesn't stick well to oil.
That is correct, all the surfaces, head and end rails really need to be very clean and free of all old debris and oil. That is very important.

If you buy the correct intake gaskets matching the port size is not an issue. No need to make this very easy and common procedure any more complicted than it really is.
01-30-2007 03:48 PM
1ownerT
Quote:
Originally Posted by GearJamminHero
Could you just use some small dowels in the corner holes to hold it in place while you set the manifold on? Just pull them out after setting the manifold on and putting in a few of the fasteners. Least that is how I do it. No possibility of RTV getting sucked into your engine that way.
When the intake bolts go through the intake into the head at an angle, you cannot install dowels...there is no way to set the intake over them. If the bolts were to install vertical...then it would be possible.
01-30-2007 02:06 PM
GearJamminHero Could you just use some small dowels in the corner holes to hold it in place while you set the manifold on? Just pull them out after setting the manifold on and putting in a few of the fasteners. Least that is how I do it. No possibility of RTV getting sucked into your engine that way.
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