IP Full Load Adjustment Procedure for the MW and M pumps
IP Full Load Adjustment Procedure for the MW and M pumps
The Bosch P series inline pumps have a similar banjo bolt/valve that we call the 'overflow valve'.
The older ones were not able to be cleanly disassembled/reassembled...but the newer ones are. You can take the spring/ball right out of it and stretch the spring if it has become lazy. Perhaps a P7100 valve could be retrofitted to a Merc M/MW pump...any idea on the dimensions on the Mercs?
Here's a link that has a good picture of a P7100 overflow valve of the newer modifiable (is that a word?) type. You can buy these pretty cheap on eBay or through other outlets. TST Products is a great company...but they don't deal in parts like this in enough volume to be able to sell them at low prices like some other shops could.
Beers,
Matt