24-05-2018, 12:21 AM
I'm in the process of syncro-seat grinding my valve seats in my block after having new K-liner valve guide inserts fitted.
At the same time as this was done by one of the local motor re-conditioners, I had the block put in their "hot bath" for several days. I had removed the core plugs first.
This solution ( I think it is caustic) loosens and dissolves the build up of mud and ferric oxides in the water galleries. I then followed this up with an extensive water blast on the highest pressure I could get the blaster on.
I have recently sectioned my early 90's UK trip initial high performance block and was surprised at the amount of rust that was significantly blocking the water galleries. I highly recommend getting your block into a "hot bath" for some time. Even with the core plugs out, it is not possible to poke a wire around all the galleries. The rust is also so hard that the wire would not dislodge the crud.
I will attempt to post some photos showing this later.
Regards John
Christchurch
NZ
At the same time as this was done by one of the local motor re-conditioners, I had the block put in their "hot bath" for several days. I had removed the core plugs first.
This solution ( I think it is caustic) loosens and dissolves the build up of mud and ferric oxides in the water galleries. I then followed this up with an extensive water blast on the highest pressure I could get the blaster on.
I have recently sectioned my early 90's UK trip initial high performance block and was surprised at the amount of rust that was significantly blocking the water galleries. I highly recommend getting your block into a "hot bath" for some time. Even with the core plugs out, it is not possible to poke a wire around all the galleries. The rust is also so hard that the wire would not dislodge the crud.
I will attempt to post some photos showing this later.
Regards John
Christchurch
NZ