trouble!
- Thread starter sicivicdude
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Which is why I'm not so concerned about the leaking head gasket or what I'm going to do about it. I just scored a forged piston for the vito's top end so we'll be rocking that shortly.
blastemergencies is hilarious. have u found many jugs warped?i thought it was mostly heads? ive had issues getting mine to seal ever since i realized all the studs have been pulled out and tapped and then i had to retap them ,nothing is square.ur getting good w the alumiweld i c. ive seriuosly thought of using it to join the head to the jug.
Thanks nate. I figured out the amount of heat it needs and that makes it take a LOT better. The stuff still isn't perfect, but it is usable and makes a permanent bond when done right. The video's of the guy smashing it with a hammer, I can see that now; it bonds to the aluminum well enough to NEVER let loose.
I don't think it would hold. The head and cylinder would cool at different rates and it would crack out. The one thing you COULD do (which I have thought about) is buy a viton o-ring off of a YZ250 head from the dealer and cut a groove into the blaster head to match. The head may run too hot for that material but maybe it's something you could try instead of trying to weld the head to the cylinder.
I haven't found many cylinders warped but this cylinder has had head studs replaced before (2 of them) so perhaps lapping is something that needs to take place on any cylinder that has head studs replaced. Not good enough to make sure the head is smooth if the cylinder looks like the ocean...
I don't think it would hold. The head and cylinder would cool at different rates and it would crack out. The one thing you COULD do (which I have thought about) is buy a viton o-ring off of a YZ250 head from the dealer and cut a groove into the blaster head to match. The head may run too hot for that material but maybe it's something you could try instead of trying to weld the head to the cylinder.
I haven't found many cylinders warped but this cylinder has had head studs replaced before (2 of them) so perhaps lapping is something that needs to take place on any cylinder that has head studs replaced. Not good enough to make sure the head is smooth if the cylinder looks like the ocean...
I got the engine back together last night and back in the frame.
I really thought I had messed up though.... I installed the kicker and tried to push it down by hand that it wouldn't move
. I quickly remembered I had shoved a clean shop towel in the exhaust port to keep any crud out. Apparently the piston was down when I did it and some went into the cylinder and the piston came up to trap it. I turned the engine backwards and removed the rag. The engine turned over fine after that....
I got the rims and tires in from tihs yesterday and mounted them. No more lawnmower tires for me! Kenda kutter XCR's mounted on ITP delta steels. It's getting back together quickly...
I have to fab up a anti-vibration exhaust hanger to remount the headpipe. THe factory one, the rubber broke away from the steel plates so the header was sitting up against the steering stem. There is already a nice rub spot on the header. Thankfully not all the way through that thin steel. Once I get the head pipe painted and the hanger made, I'll post some more pics!
I really thought I had messed up though.... I installed the kicker and tried to push it down by hand that it wouldn't move
. I quickly remembered I had shoved a clean shop towel in the exhaust port to keep any crud out. Apparently the piston was down when I did it and some went into the cylinder and the piston came up to trap it. I turned the engine backwards and removed the rag. The engine turned over fine after that....I got the rims and tires in from tihs yesterday and mounted them. No more lawnmower tires for me! Kenda kutter XCR's mounted on ITP delta steels. It's getting back together quickly...
I have to fab up a anti-vibration exhaust hanger to remount the headpipe. THe factory one, the rubber broke away from the steel plates so the header was sitting up against the steering stem. There is already a nice rub spot on the header. Thankfully not all the way through that thin steel. Once I get the head pipe painted and the hanger made, I'll post some more pics!
Good work bro! I don't wanna see a trouble v3!! Standing by for more pics.. Is it possuble your studs started to pull out again?
No, they're in tight. No trouble with the studs themselves. I didn't check the cylinder deck when I assembled, I figured if someone took the time to sert two of the studs, they lapped it too...
I was simply wrong! I believe the cylinder is warped. I may take the studs out tonight and lap to confirm (and fix the problem) but I'm not planning on running this cylinder again anyway.... I may lap it to fix it and then sell it.
I was simply wrong! I believe the cylinder is warped. I may take the studs out tonight and lap to confirm (and fix the problem) but I'm not planning on running this cylinder again anyway.... I may lap it to fix it and then sell it.
Well boys, it's a runner!
Look at that ancient FMF pipe!
I have a seat on the way from tihs and plastic is still in a big green painted pile. We'll get to that in a little while. The main thing is, it runs!
Look at that ancient FMF pipe!
I have a seat on the way from tihs and plastic is still in a big green painted pile. We'll get to that in a little while. The main thing is, it runs!
thanks. I probably should have saved the pics of it getting back together for a mini-build thread but this isn't one for pretty, simply functional...
I still have to bolt the rear caliper on, front fender bracket, and easy-out one of the screws in the front bumper that holds that little plastic piece on that says "yamaha" in the middle. Once those few things are done, the mechanical end is complete and it's up to my wife to get the plastics finished.
I still have to bolt the rear caliper on, front fender bracket, and easy-out one of the screws in the front bumper that holds that little plastic piece on that says "yamaha" in the middle. Once those few things are done, the mechanical end is complete and it's up to my wife to get the plastics finished.
Thats the same FMF pipe I have. Same silencer too. Ive never seen another blaster with an FMF and that silencer on it. Must be old son!
I figure vintage mid 90's. It doesn't have the tail "cone" and it's not marked fatty, gnargly, or anything. Simply FMF "gold series" and a signature. Possibly one of the first batches to come out of the flying machine factory.
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