Cylinder Head Porting Questions:

Question #1:

multiple engine problems, are you awesome with cars? head gasket, valve seal or piston ring?

Its for an 96 Mazda mx6 4 cyl 2.0L
It all began with a water pump leak. Coolant was unseaworthy discover of the liquid pump and i hit been running with low coolant level for a while. Since i had the whole weekend, I put in new liquid pump, bullet core, radiator, thermostat and patch I was already there, the timing track as well. And there was no more leak.
But on the first essay I had the timing track soured digit agency so I went back and corrected it. The automobile ran beautifully....only for a bit...this is when everything started feat wrong.

I first let it idle for 2 hours shut it soured and next day I effort crowd for about 30 transactions on the highway, it ran fine, no vibration, no smoke, no loss of noesis etc. But then the engine light came on and by the time I was home, the car was running respiration out the tailpipe and coolant was bubbling constantly at idle. After sitting for a day, the car would separate for exclusive 3 minutes at idle, move quiver seriously which i now conceive was a misfire but feature ahead prototypal , smoke out the tailpipe and rough idle. From the white respiration and the foaming coolant and the engine having 250000kms on it i figured its a panting head gasket....

I started attractive unconnected the intake, wear mani, plugs, etc then I noticed that my cylinder 3 spark plug counsel is awninged in black oily gunk and I can wager finished the exhaust ports that the valves are also covered in the aforementioned gunk.

Now I am completely confused whether the difficulty to begin with was coolant revealing in the head, or bad valve accolade maybe it was dilapidated when i ran the car with timing off or intense piston ring...? Pressure in the coolant and white respiration I'm sure is nous gasket failure....but then ground is there so such lubricator in the cylinder instead of coolant? I'm trusty the timing was on properly i patterned prefabricated sure of it about a 1000 nowadays and if the valves or pistons were damaged, ground the SUDDEN unfortunate after running perfectly?

Can anyone tell me what I'm hunting at?!??! Its a taste late for comp tests or any kind of tests since ive already got the head off... I just poverty to attain trusty Im sterilisation the right thing. I dont poverty to do all the work on the nous and find out it was the piston rings....which I slope fix on my own...

It haw hit been both the HG and intense valve seal...but now i requirement to undergo if it was the valve seal or piston ring...
Its absent beyond my level so if you are awing at sterilisation cars, permit me undergo the answer. Thanks!

Question #2:

What 351C heads do I have?

CASTING      #D0AE-N
DATE CODE- 9K31
DATE CODE- 9K30
CARB              4V
CHAMBER TYPE: QUENCH CLOSED
INTAKE VALVE DIAMETER: 2.19"
EXHAUST VALVE DIA.         : 1.71"
INTAKE PORT DIMENSIONS: 2.50" X 1.75"
EXHAUST PORT DIMENSION: 2.00" X 1.74"
CHAMBER SIZE: 62.8cc

Please wager photos on EBay

I posted these after a lot of investigate and then received an email telling me I had no idea what I was selling. Any help is greatly appreciated. Thanks in advance

Jeff

Question #3:

1999 mitsubishi eclipse performance question?

Anyone know the hp I'm confident of? An what filler injecters I should run? Have stock right today :/ I'm actuation 10psi. And does anyone propose anything added to be done?

JE Pistons, Eagle H Beam Rods, ARP Head Stud Kit, Ported & Polished Cylinder Head, King Bearings, Stock Crank,Stock Camshafts, AEM Adjustable river Gears, Hahn Super 16g Turbo,GReedy Emanage Ultimate, ACT StreetLite XACT Flywheel, ACT Clutch, Custom 2.5" Exhaust, 4" N1

Question #4:

What is the proper procedure for adjusting SB Chevy valves. 1981 C10 2WD 305 ci. 4bbl.?

I followed the directions from the Chiltons drill and the truck will just separate and it seemed to backfire back through the exhaust. Flat cam maybe. I dont undergo the history on the motor. All I know is that it ran before I tore it downbound to replace the heads. The old ones were cracked. Exterior anti-freeze leak between exh. increase ports. Between cylinders 1 and 3 and also between cylinders 6 and 8.

Question #5:

I'm a CAR NOOB: steps to modify engine? please HELP ME!!?!?

I hit ever had a love for cars & speed, but I'm new to every the tuning & modifying and my noesis is lowercase to none. I currently hit a Nissan 240sx 1998 and it has 280, on the have engine which is a KA 4 chamber engine. i poverty to switch it discover with a RB20DE/DET 6 cyl. engine. i think that should be the first step, and after that, have the newborn RB blueprinted & hit the "heads ported & polished. I'm not rattling trusty what that means, but my cousin says that if you verify it to a shop, they module rebuild it to attain everything run meliorate Can anyone else enlarge or support this?

after that, what upgrades should i make, and in which order? or does visit not matter?

Question #6:

1986 ford mustang 5.0H.O. smokes . removed intake to see egr port wet with oil on left head. What is the cause?

doesn't smoke at initial algid start. compression is 150 psi average on every cylinders.smokes at 2000 rate

Question #7:

Chevy Cylinder Heads?

Chevy Worlds Sportmans 202 heads.Wanting to take them to the shop since i dont know the size of the springs.And since i,m going that far,wanting to know what the world think most modifying them without porting and polishing them.Its a chevy soon to be 355 you know 350 .30 over.I think the springs say have 125 azygos and 145 doubble.Wanting a great street car temperate track and yea its a 71 camaro 400 trans 3.42 gears back.What most gasket matching or painting low the springs for oil flow.Really poverty to keep up with those 2000 and 2010 camaros,ALL ROLLER MSD HEDDERS CARB INTAKE.

Question #8:

Is my headgasket blown, or do I have a cracked head maybe ?

Hello I hit a discourse about 98 Jeep Grand Cherokee with the 5.9 Liter v8 magnum engine.

It has 125k miles on it, and i bought it a lil over a year ago from a Volkswagen dealership. The engine is very strong and doesnt feal same it has any problems when it drives.

However i noticed most 2 weeks past when i turned the Jeep on and went behind the Jeep to get into the luggage that the tailpipe has white respiration not black or chromatic coming out, and it was flowing water and the cat convertor was dripping also. So i waited and watched it and after most 5 minutes it went away the engine was at around 180f by that time. That and its also gone after i drive it for same 2 minutes then kibosh and check on it.

Coolant level has been feat down slowely but i attribute this to the upper radiator tubing when leaks when pressure is in the system, and the regulator gasket leaks as well. I have replaced the timing counterbalance gasket, the waterpump, automobile fan motor, because they every went bad and started unseaworthy coolant after i replaced my radiator cap old cap was bad and the new cap place pressure backwards in the grouping so old seals started leaking..

I havent gotten around to fixing the radiator hose or theromostat gasket yet. I ran a densification analyse and 7 cylinders are running at 160psi dry, and 166psi with oil squirts. 1 cylinder is running at 150 dry and 155 with oil.

I also used digit of those chemical test kits that you put over the radiator fill port where you suck air up from the radiator so it mixes with the chemical to verify you if you hit combustion gases in the cooling grouping The chemical stayed blue after 5 minutes with the engine running, and the intructions says chromatic means the headgasket and head are good, green effectuation effort bad, and yellow effectuation bad.

The temps outside are around 50-65f so maybe its because of the temperature right ?

Could i ease have a bad headgasket or head and hit no signs of combustion gases in the coolant or the oil ? Maybe it leaks into a chamber after the engine is shut off ? Or is this meet moisture effort into the engine/exhaust and burning soured after the Jeep sits

Question #9:

How can I increase power in my truck?

I have an 82 doge 360 V8 and here are the upgrades I'm planning on: k&n cold expose intake and filter, larger enrich body, throttle embody spacer, broad performance intake manifold, racing ported chamber heads, racing cams,piston,connecting rod and crankshaft, 8mm platinum flash wires and platinum flash plugs, MSD offroad ignition system, underdrive pulley, 3 1/2 progress 304 stainless steel header w/ ceramic coating, genuine threefold exhaust, broad action cats and mufflers, and I conceive that's it. Probably light coefficient valves, lifters an springs.

Question #10:

Question about cars: is this Lancer fast?

Hey, so straightforward up i'll just put it out there that when it comes to cars i'm very basic. Im asking this on behalf of a friend who 'seems' to know alot. So this questions is discover to car lovers that actually know what the hell theyre conversation about.

Ill post the specs of a Lancer in which quoted by him, could decimate 90% of stock cars off the line no concern the engine filler and for 10-15 seconds after continue with the lead. presuming its straightforward and no cornering required apologies if I good same digit of the stereotypical car-wannabes "OH MAN SO FAST COULD SMASH ANY CAR

All I poverty to know of if this is anywhere near true, it seems to hit alot of mods but I dont hit the long noesis to understand how priceless each of these mods are.. here are the specs

1995 MITSUBISHI LANCER CC GSR

1190kg
4 chamber Unleaded Turbo 1.8 L 1834cc
Motor 20tho oversice
Blance sharfts removed
ARP nous cover and unstable kits
Eagle h-beam rods
Aires deep ply pistons
Cometic 3mm nous gasket and gasket kit
Fully o-ringed block
Fullt port and polished and flow tested head
Titanium vavles and retaners
HKS vavle springs
HKS 272 cams
HKS adjustable cam gears
Custom wear increase and heat wraped
Garrett Ball Bearing Turbo GT35R with 1.06 and .63 houseings
Turbosmart 45mm wastgate
3inch exhaust
All 3inch intercooler piping
PWR 600x300x76 intercooler
76mm throttle body
Custom 9lt plenman
RC 750cc injectors
Malpassi rising evaluate fuel reg
Walbro intank pump
Bosh 984 inline and 3lt surgetank
All ralliart bushes
Exedy Sports Ceramic 3 puck Clutch Kit
Cusco frount and side strut braces
All way retrimed red/back
Dash and door paniles varnished the same as the car
Stewart Warner gauges oil fule boost fule piro tac
Kong 18inch unknown wheels

EVO 3 embody kit

1Lt of paint
RWC at right price
232kw 6200
732nm 4400
all at 16 PSI

little/any description as to why this is true/false would be greatly appreciated. thanks



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