Valve seat materials
11-23-2016, 09:17 AM
#41
Registered
In reference to young guys and leaded fuel, I worked at a full service (yikes!) gas station back in the early 80's when leaded fuel was still available right next to unleaded. I can't tell you how many gas tank filler necks I modified to accept the larger leaded fuel pump nozzles and how many "test tubes" (anyone remember that name?) I installed. No one wanted to run unleaded even in cars designated for "Unleaded Fuel Only".
12-09-2016, 07:26 PM
#44
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iTrader: (2)
With bronze guides .0013 intake .0018 exhaust. With iron heads .0020 you also need to have a nice wide valve job so the heat from the valve is transferred to the head and into the coolant system. If it's moderate performance I run all valve seals. If it's a really healthy motor I don't run them on the exhaust.
12-09-2016, 07:35 PM
#46
Registered
No valve seals on my engines No guide issues, haven't used them in 17 years
12-09-2016, 07:39 PM
#47
Registered
Interesting...I used to run Amsoil 100:1 in my two stroke bikes back in the day but never thought to run it in anything else. Maybe I'll try it in my new engines what brand are you using?
12-09-2016, 08:27 PM
#50
