Retired Wrencher 4,884 #1 Posted February 2 Looking for info on fuel pump that has vacuum pump or pulse pump. Never knew they had these pumps because it is a 66? Never owned a 66 before. Does it take the same rebuild kit as the lever or arm to cam pumps? Will arm or lever pump work on these engines? 1 Share this post Link to post Share on other sites
ebinmaine 63,267 #2 Posted February 2 12 minutes ago, Retired Wrencher said: Does it take the same rebuild kit as the lever or arm to cam pumps? Different kit. The vacuum pulse pump you have requires only a small square diaphragm to be replaced. We have two vendors here on Red Square. @buckrancher And @rmaynard I've used both and recommend either one. 1 Share this post Link to post Share on other sites
Retired Wrencher 4,884 #3 Posted February 2 (edited) Thanks Eric getting close to firing up the K181. I just sent a PM to https://www.wheelhorseforum.com/profile/591-buckrancher/. Edited February 2 by Retired Wrencher 2 Share this post Link to post Share on other sites
rmaynard 14,922 #4 Posted February 2 38 minutes ago, ebinmaine said: We have two vendors here on Red Square. @buckrancher And @rmaynard I've used both and recommend either one. I am not really a vendor for diaphragms. I just happen to have a few extras that I made while stuck in the house during the Covid pandemic. 1 Share this post Link to post Share on other sites
Retired Wrencher 4,884 #5 Posted February 2 50 minutes ago, rmaynard said: I am not really a vendor for diaphragms. I just happen to have a few extras that I made while stuck in the house during the Covid pandemic. Thanks Bob senthttps://www.wheelhorseforum.com/profile/591-buckrancher/ a message if he does not have anyI will contact you. Thank you for the reply. I am thinking of trying the cam arm type to see if the engine will run? I have every thing else for it. Share this post Link to post Share on other sites
ebinmaine 63,267 #6 Posted February 2 5 minutes ago, Retired Wrencher said: . I am thinking of trying the cam arm type to see if the engine will run? It's come up on Redsquare about swapping from one style pump to the other in the past. The part in question is the actual camshaft in a Pulse type engine. I've not seen definitive proof that Kohler always used the same cam on both engines. I would NOT try to install a lever arm pump where a pulse pump was originally. Order the correct gasket for the pulse pump. It's very easy to install. Share this post Link to post Share on other sites
rmaynard 14,922 #7 Posted February 2 (edited) You can look into the hole where the pump mounts and see the cam shaft. If there is a lobe, you're good to go. Edited February 2 by rmaynard 2 Share this post Link to post Share on other sites
Mike'sHorseBarn 2,665 #8 Posted February 2 I've used the @buckrancher diaphragms before and usually keep a few on the shelf. In fact I used one this week on my 854 pump and now I only have one left so it may soon be time for another order lol As far as using a lever style pump I believe the cams have the lobe no matter if your engine has a vacuum pump or not. I only know that because I tried it on an 855 and I found one that worked. You have to use a pump with the offset lever. 3 1 Share this post Link to post Share on other sites
Retired Wrencher 4,884 #9 Posted February 3 Thanks every one for the info. Hoping to fire it up this weekend? 1 Share this post Link to post Share on other sites
