MLS Head Gasket : Needs Modification
Login  | |
|
MLS Head Gasket : Needs Modification - 5/11/2008 6:27:06 PM
|
|
|
Ghost Neon 2
Posts: 516
Joined: 12/21/2006
Status: offline
|
Just built my first engine and noticed something about the MLS head gasket. The coolant passages vary in size from cylinder #1 to cylinder #4. This would mean that cylinder #1 gets a good amount of coolant and will run cooler, while cylinder #4 will get very little and run hooter/leaner. Not trying to build another engine sooner that necessary, so I did the following:
This is cylinder #1. As you can see, the coolant passages are a good size. In between cylinder #1 and cylinder #2, there are very small holes to cool between cylinders. Left them alone, but next time, I'll add a few holes with a small drill bit
This is cylinder #2. Now notice the coolant passages have gone down some in size. I di dnot change these, as they seem satisfactory from my n/a car. had i gone with boost, I'd likelt widen then a tad.
This is cylinder #3. Notice that one more, the size of the coolant passages has been decreased yet again. These are smaller than the passages of cylinder # 1 and cylinder #2, and will ultimately run warmer from lack of coolant flow.
This is cylinder #4. Notice the drastic decrease in the coolant passages. This is far too small to supply the cooling needed to run effectively for a modified or even a stock vehicle.
Here are the changes I made to bring some balance to the coolant flow in this engine:
This is cylinder #3 bored out. Simply too a larger drill bit, secured the head gasket to prevent damage, and drill the passages out. This should certainly do a better job of cooling cylinder #3.
This is cylinder #4 bored out. Quite an improvement over the original design, and one less flaw to cause failure down the road.
After the drilling, I was nervous about the gasket sealing properly, so I used cooper gasket sealer on the MLS to ensure a good seal. Working great so far!
< Message edited by Ghost Neon 2 -- 5/11/2008 10:28:22 PM >
_____________________________
Angels on the side lines. Baffled and confused. Father blessed them all with reason, cause this is what they choose.
|
|
|
|
|
|
|
RE: MLS Head Gasket : Needs Modification - 5/12/2008 1:06:14 AM
|
|
|
12 volt
Posts: 1359
Joined: 8/4/2007
From: roswell New Mexico
Status: offline
|
ive notice this on sevral engines that ive disassembled, thos small hole can get clogged pretty easy
what brand is that gasket?
_____________________________
98 neon Sport mtx/DOHC audio system, toggle switch ignition, K&N insert
95 neon (parts car)
91 BMW E34
|
|
|
|
|
RE: MLS Head Gasket : Needs Modification - 5/12/2008 12:56:55 PM
|
|
|
Jr. Mechanic
Posts: 4215
Joined: 1/10/2007
From: Lima, Ohio
Status: offline
|
You realized they did that for a reason, correct? If you are not in a cold climate, or you dont use your heat it is ok, but the reason they do that is to restrict the coolant flow so the engine warms up sooner.
_____________________________
~Garret
1997 Plymouth neon
1983 Camaro Z28
|
|
|
|
|
RE: MLS Head Gasket : Needs Modification - 5/12/2008 1:11:20 PM
|
|
|
12 volt
Posts: 1359
Joined: 8/4/2007
From: roswell New Mexico
Status: offline
|
quote:
reason they do that is to restrict the coolant flow so the engine warms up sooner
well thats what the thermstat is for.
the only reason i can think why, is because the water flows for one side on the block to the other. So they restric the first cylinder that sees fresh cool water so the last one the water is warmer so it needs more coolant flow to stay cool.
_____________________________
98 neon Sport mtx/DOHC audio system, toggle switch ignition, K&N insert
95 neon (parts car)
91 BMW E34
|
|
|
|
|
RE: MLS Head Gasket : Needs Modification - 5/12/2008 4:57:07 PM
|
|
|
Jr. Mechanic
Posts: 4215
Joined: 1/10/2007
From: Lima, Ohio
Status: offline
|
Not really. The engine may never even get hot enough to open the thermostat. There really may be nothing wrong with doing this, but my point is that there is a reason the high payed Chrysler engineers decided to do that, do you think they just said "Hey, lets make some holes smaller than others cause we are over paid douche bags?"
Another example of this, when I built my 350, the rebuild kit came with these little metal restrictors that went into the intake coolant ports, and a little paper came with it explaining that some castings had larger cooling ports than others, and the engine may not get up to operating temperature. Mine was not one of the engines listed, so I didnt use them.
_____________________________
~Garret
1997 Plymouth neon
1983 Camaro Z28
|
|
|
|
Contact Us |
Link To Us |
Sitemap |
Archive |
Advertising |
Automotive Directory |
About Us |
Dodge Links |
Legal |
Privacy Policy |
© Dodge Forum
Harley Davidson |
Ford Mustang Forums |
Dodge Challenger
Dodge Forum .com is not affiliated with or endorsed by Daimler Chrysler.
|
Printable Version
