Used when disassembled on the waist of DT50
On 2018-08-10 23:19:28
Genuine head gasket alone more than 2,400 yen! This set contains one for upper waist and 1,300 yen. Because it is very cheap, I bought it expecting, but eventually I ended up losing money.
This work was the expansion of the inner diameter of the DT 50 (+ 0.75 mm), but the gasket for this head was made to 40 mm standard inner diameter, and when the head bolt was tightened, the gasket As the aluminum collapsed, it deformed so that it drooped slightly on the cylinder wall surface, and as a result, the piston collided with it and it did not turn to the top dead point. After all I repurchased genuine.
Perhaps, if the cylinder diameter is 40 mm of the standard size, this kind of problem may not occur, but the original gasket is about 42.5 mm, so even if the oversize of + 1.0 mm can be prepared with a margin It is getting. By the way, although it does not seem to sell domestic sales of + 0.25 and +0.5 genuine piston, overseas it is still regularly distributed as regular genuine parts.
Even if the above problem does not occur with a cylinder diameter of 40 mm, care should be exercised because the compression ratio will change compared with the original gasket. I do not want to use this type C piston clip if possible (eventually I used the piston accessory)
However, in the end, I used other than the head gasket and piston rings. For now it has not happened serious problems, but after traveling several kilometers after assembly of the engine, I opened the intake side to see the state of the piston, from the edge of this gasket at the bottom of the port A very small piece that I could tear off was falling (It is quite prominent blue color, so I can understand it immediately). Something is suspicious. Let's exchange this part genuinely too?
When running for several kilometers, it may decompose again for checking, but at that time I will use all genuine gaskets.
On the waist of the engine OH
On 2014-12-08 19:41:07
It is cheaper than genuine parts. Because the manufacturer is also Kitakko, there is a sense of security. I am happy that it will be a little cheaper.