Get a 1/8" pipe to 1/4" compression fitting, tap the block and then you will never have a problem again. I reamed out the fitting some because the dipstick was getting caught, but now it is smooth and I will never have to worry about breaking off the end of the dipstick again when I remove it from the block. I also used the $80 repop and broke it, made another from fuel line, broke it, so this was the next step....Tim