Didn't those three get killed in a freak gasoline fight accident?
Wires, Hoses, & Digital Wizardry.
Got the holeshot
Didn't those three get killed in a freak gasoline fight accident?
Red Rider's Sand Machine Updated 07/23/14
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Hopefully!!!
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Originally Posted by BigGreenMachine
What I did was with the cylinder and head off the engine bolt the head on the cylinder then using my pressure tester pressurize the coolant loop for the top end and check for leaks, it didnt take much pressure to find this leak I would not exceed toyr hose rating if your using your radiator hose like I did (15-20 lbs max?) you can put the assembly under water then look for the bubbles...
Let us know what you find.
Just Too Addicted
Arm chair racerJust too addicted
That's a great idea!! I'm having problems with a Tri-z head leaking, so I think I'll try that. Thanks!
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Arm chair racerAt the back of the pack
I have found that most head gasket failures are a product of a bad surface or a surface that is distorted usually by improper torque.
I painted the top of this cylinder with a blue sharpie before taking it a few laps across the surface plate, the places you still see the marker is the low spots on the gasket surfaces.
Here is the head after some lapping you can see the indent the head metal head gasket ring left in the aluminum casting if not corrected that area will not apply the proper clamping forces on the new head gasket, it might seal for a while but after some heat cycles or a slight over heating it will leak again.
You find the same thing on the top of the cylinder
Below is another head that was machined by a big name company what a mess, who ever tried to re cut the head must have had alot of problems with the cutter, blue arrows point to the extreme chatter the cutter must have had to make that chatter pattern on the sealing surface, even after me lapping the head the yellow arrows point to low spots that still contain gasket material I could not remove with a razor blade, the pink arrows show a random gouge in the dome area where I bet the machine operator said "oh *Edited**Edited**Edited**Edited*" when the cutter dug into the materail
Just Too Addicted
Arm chair racerJust too addicted
Originally, I was losing coolant through the rad overflow. So I pulled the head and cylinder and sent it out for a new bore and head work. I figured bad head gasket. It needed a bore anyway. I reinstalled everything w/ a new gasket and torqued to proper specs, 18ft lbs, in the correct sequence. The only thing that bugged me was that the original head bolts were pretty chewed up from removal and years of corrosion. But I reused them figuring that it shouldn't affect anything. Well, now I have coolant leaking out of the front head stud. So I tried another new gasket and torqued to 22 ft lbs. It was better, but still leaking. I still haven't started the engine yet. Is it possible that the head studs are the problem? Any advice? Thanks!!
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Yes the studs can be a problem too they can stretch the only way you can tell would be to remove them and measure them against new or each other to see if they are the same length, before you torque a fastner you need to make sure the threads are clean, dirt and rust free and that the threads are in good shape, not pulled.
New to the board
Arm chair racerNew to the board
you guys were right about my water problem. the guy i bought it from made the head gasket. he made a stencil and cut it out but when he did, he forgot to cut out one of the jet holes, and on two of the jet holes he cut the part in between the jet hole and cylinder hole so water was flushing in to the cylinder and getting into my oil. thanks for the help. i really appreciate it.--DJ
Loves Corn.
Catch me if you can
WOW I've heard of people jerry riggin but thats the best one yet!!! MY GOD! what did he make it out of carboard....
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Arm chair racerAt the back of the pack
I agree!! I have made base gaskets from a cereal box before in a pinch, but afro-engineering a head gasket is beyond words. What a putz................
One piece at a time. Status: The Beast is Done..06-23-07
Back in the saddle again
Currently owned rides:
My sleds, and.........
1995 CBR600F3
1976 Kaw 400 triple-smoker......SOLD
1986 250R...owned since 1990
06-23-07........the R is finally done!!!
ESR pipe, Aktive reeds/CR cage, 38mm PWK, +4 Dominator
mild clean-up porting, an open K&N, CR and YZ calipers.......among other things
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i dont kno what he made it out of. i got a new one today and kicked it one time and she fired right up. the gasket i got doesnt have the jet holes cut out all the way. im gonna take it back apart and try to cut it a lilttle bit so the coolant can get into the jets better. it runs fine but its runnin too rich so it wont idle. im gonna change the ratio. i dont have the plug for the drain hole for the water. where can i get one or what can i use as one? i had a little plastic thing i was usin but it still had a slow leak so i need somethin else.
Loves Corn.
Catch me if you can
most of head gaskits have a touch smaller holes in the gaskit for the water jackets, if its a oem gaskit i would leave it alone..make shure its tourked right and move on to the next problem,
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Arm chair racerNew to the board
what about the drain plug for the water?
Wires, Hoses, & Digital Wizardry.
Got the holeshot
It sounds like you're planning on cutting the existing head gasket and then reusing it. If that's what you're thinking of doing, plan on some head gasket leaking problems. You don't want to reuse them after being torqued down. As for making the holes bigger that feed the waterjackets, I'd just leave them alone. They are that size for a reason.
Red Rider's Sand Machine Updated 07/23/14
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Arm chair racerAt the back of the pack
Here is a classic example of some shade tree skillbilly in action, sand blasting gasket surfaces so they will not be flat any more....
http://cgi.ebay.com/ebaymotors/1985-...33951022QQrdZ1
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