davidbaker
New member
One of the screws fixing the impeller chamber cover is obscured by a drive belt, making impeller replacement in emergency difficult. I think you can get knurled bolts or screws instead. Anyone know about this?
Yanmar impeller
- Thread starter davidbaker
- Start date
pete
Well-known member
I fitted ss hex headed bolts to my 1 GM 10 water pump but have considered drilling a hole through the crank pulley in line with the offending screw, have heard of someone removing pump completely to gain access to impeller good luck.
pete
pete
G
Guest
Guest
There is a company that makes a product called Speedseal. I bought one. It cost about £30 two years ago. It has been excellent. Details from www.saferengine.com
tonyleigh
New member
Try Speedseal 01372 451992 email safety@speedseal.com
approx £35 inc VAT. Beautifully machined and does "just what it claims". Had one for last 2 seasons and very satisfied.
approx £35 inc VAT. Beautifully machined and does "just what it claims". Had one for last 2 seasons and very satisfied.
snowleopard
Active member
Been there, done that
I fitted Speedseals to my Yanmar 3GMs It doesn't get round the problem! Truth is that you're better off accepting that you have to take the pump off, it's only 2 bolts and you'll have the job done far quicker than the guy who tries to do it with the pump in place. The impeller is quite hard to remove so it's easier if you can get at it directly.
If you order a speedseal, make sure you get the right one, there are two types for the GM series, of very different sizes.
I fitted Speedseals to my Yanmar 3GMs It doesn't get round the problem! Truth is that you're better off accepting that you have to take the pump off, it's only 2 bolts and you'll have the job done far quicker than the guy who tries to do it with the pump in place. The impeller is quite hard to remove so it's easier if you can get at it directly.
If you order a speedseal, make sure you get the right one, there are two types for the GM series, of very different sizes.