Windedv6
Ty n 10s
Re: Cleaning rust out of Cylinder Heads
Sean
There is a couple of levels of risk here.
Minimally they have to be hot tanked at this point and need the value seats retouched and clean honed the guides to clean them up. What size are the valves? If they are not marine heads which have seat inserts you are probably wasting your time and money, especially if the seats are already cut to except larger valves. Non Marine heads are surfaced hardened at the seat and when cut for larger valves loses the majority of this hardened material. It is common on non marine vortecs that have been cut for bigger valves to crack between the valves and leak. Just a quick cleanup of the rust, seats and guides may leave you with problems like cracks, etc that having them maged would be wise.
There would be less risk short cutting the process, ie, hot tanked, value seats retouched and clean honed the guides, if the valves are still a stock size and the seats have not have been already cut . I would think Ed probably had them worked over with larger valves.
If so, I would probably start over with your other set of heads.
John
Sean
There is a couple of levels of risk here.
Minimally they have to be hot tanked at this point and need the value seats retouched and clean honed the guides to clean them up. What size are the valves? If they are not marine heads which have seat inserts you are probably wasting your time and money, especially if the seats are already cut to except larger valves. Non Marine heads are surfaced hardened at the seat and when cut for larger valves loses the majority of this hardened material. It is common on non marine vortecs that have been cut for bigger valves to crack between the valves and leak. Just a quick cleanup of the rust, seats and guides may leave you with problems like cracks, etc that having them maged would be wise.
There would be less risk short cutting the process, ie, hot tanked, value seats retouched and clean honed the guides, if the valves are still a stock size and the seats have not have been already cut . I would think Ed probably had them worked over with larger valves.
If so, I would probably start over with your other set of heads.
John
