Keith:
I am no engineer so may analysis may be flawed, but I believe the rubber spacers securing the radiator are suggested, in part, to accomodate for differing expansion rates between the hot radiator and cooler adjacent metal. If the radiator is secured tightly over time the radiator joints can be compromised leading to leaks. The rubber spacers give a bit of flex to prevent this problem.
Indeed I used rubber spacers on the alumunimum cover plate to radiator connection for the same reason.
If anyone with more expertise can chime in it may be helpful.
Chuck
I am no engineer so may analysis may be flawed, but I believe the rubber spacers securing the radiator are suggested, in part, to accomodate for differing expansion rates between the hot radiator and cooler adjacent metal. If the radiator is secured tightly over time the radiator joints can be compromised leading to leaks. The rubber spacers give a bit of flex to prevent this problem.
Indeed I used rubber spacers on the alumunimum cover plate to radiator connection for the same reason.
If anyone with more expertise can chime in it may be helpful.
Chuck