Cee245 818 #1 Posted March 10, 2023 Does anyone know if I could use an ONAN 146-0496 CARBURETOR 20 HP PERFORMER carb on a P216G (1997 416-H)? I found a new one for a decent price. I believe this one listed above does not have the accelerator pump while mine does. Thanks Share this post Link to post Share on other sites
lynnmor 7,316 #2 Posted March 11, 2023 I believe it will work fine. I prefer the one without the accelerator pump since they are temperamental and often backfire on shutdown. 2 Share this post Link to post Share on other sites
Cee245 818 #3 Posted April 2, 2023 Ended up finding a new Performer Nikki carb for 16/18hp Onan from a place in Washington state that services generators. It's expensive, compared to the new Chinese carbs, but it doesn't have the accelerator pump and it works perfectly. Very happy with it. 1 Share this post Link to post Share on other sites
Jason Hunt 3 #4 Posted October 11, 2023 You wouldnt happen to have the name of the place you got your carburetor from would you? Also, will a 20hp carb work on a 16hp engine? I heard that they were jetted differently but the rebuild kits are the same are they not? Share this post Link to post Share on other sites
Jason Hunt 3 #5 Posted October 11, 2023 Ok so I found out that a 20hp carb was jetted differently than a 16hp. Share this post Link to post Share on other sites
RED-Z06 2,221 #6 Posted October 13, 2023 My P220 lost a valve seat, i replaced the engine but kept the old one. My 318 had a pumper carb, i swapped the entire P220 carb/intake over to the P218 and it runs perfectly 1 Share this post Link to post Share on other sites
Handy Don 12,270 #7 Posted October 13, 2023 15 hours ago, RED-Z06 said: My P220 lost a valve seat, i replaced the engine but kept the old one. My 318 had a pumper carb, i swapped the entire P220 carb/intake over to the P218 and it runs perfectly Makes sense--P218 and P220 have the same displacement. Glad to know because my “parts” engine is a P220 (busted rod) and my runner is a P218! Share this post Link to post Share on other sites
RED-Z06 2,221 #8 Posted October 13, 2023 2 hours ago, Handy Don said: Makes sense--P218 and P220 have the same displacement. Glad to know because my “parts” engine is a P220 (busted rod) and my runner is a P218! P220 has that big bumpy cam in it vs that 218, wish they were easier to swap Share this post Link to post Share on other sites
lynnmor 7,316 #9 Posted October 13, 2023 3 hours ago, RED-Z06 said: P220 has that big bumpy cam in it vs that 218, wish they were easier to swap The intake valve lift is .030" higher on the 20 HP, not exactly a big bumpy thing, everything else is the same. Share this post Link to post Share on other sites
RED-Z06 2,221 #10 Posted October 13, 2023 16 minutes ago, lynnmor said: The intake valve lift is .030" higher on the 20 HP, not exactly a big bumpy thing, everything else is the same. Same displacement, same intake, same block, crank, compression...but 0.030 more intake lift and a step richer main jet to compliment it, made 2hp more. I read some years ago that the 220 cam had just a marginally wider duration on both Intake and exhaust, would explain the power increase. Id love to put an 18 and 20 cam in a cam doctor and get the exact numbers. 1 Share this post Link to post Share on other sites
