Path: ...!feeds.phibee-telecom.net!news.mixmin.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Clare Snyder Newsgroups: rec.crafts.metalworking Subject: Re: Pressure washers Date: Wed, 22 May 2024 16:52:53 -0400 Organization: A noiseless patient Spider Lines: 47 Message-ID: <0oms4jddgt2gcm5oo3r9u41remnk5qjuo2@4ax.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Date: Wed, 22 May 2024 22:52:53 +0200 (CEST) Injection-Info: dont-email.me; posting-host="b24259c627b11d36bb1dbb02586a1db0"; logging-data="1433295"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19FtN/62ce8pS3NJWQ7rawx" User-Agent: ForteAgent/8.00.32.1272 Cancel-Lock: sha1:HRfBv++2CpmA8/aQGfVANrG9itA= Bytes: 3442 On Wed, 22 May 2024 07:16:09 -0500, Snag wrote: >On 5/21/2024 9:24 PM, bp@www.zefox.net wrote: >> Snag wrote: >>> I was given a Troy Bilt a couple of weeks ago because it "wouldn't >>> build pressure" and I think I figured out why . There is a ball check >>> vent valve on the HP outlet . The spring holds the ball off the seat >>> under normal hose pressure but as soon as the pump builds pressure the >>> ball is supposed to seal the outlet . Except the ball and spring are >>> missing ... Soooooo , the question is , if I can't find the ball and >>> spring can I just plug the hole ? I think the only difference it will >>> make is that I'll have to hold the wand trigger down while starting the >>> unit . I just replaced the bypass valve because it had a crack on the >>> piston head . I think the missing ball and spring are venting enough >>> pressure that the bypass valve never opens . I'd like to get this unit >>> running , it has higher pressure and flow rate than the last one I got >>> for free . >> >> A bit confused here; does the missing ball check valve vent to air? > > > Yes , it vents to air . Near as I can tell it's purpose is to vent >pressure as the motor comes up to speed . My other gas powered washer >doesn't have that feature and you must hold the wand trigger down to >start it . I'm pretty sure plugging the hole will result in having to >hold the trigger down to start this one too . > > >> >> FWIW there's a Youtube channel called "Mustie1" with at least a few >> pressure washer salvage videos, along with many more. >> >> bob prohaska >> > > I haven't watched any videos , but I did download the repair manual >and the parts diagram . The diagram shows a ball and spring under the >vent nipple , it's missing on this unit . Inspecting the nipple shows a >bright ring where that ball has seated on a machined shoulder . I can >think of no reason to have this feature but to relieve pressure at >startup . The nipple will be going to town with me this morning to see >if I can find suitable replacements . If I can't , I'll plug the hole >and see what happens . And if I can't get this thing to run , I'm only >out about 25 bucks for parts and I'll have a 6.5 Hp B&S OHV motor that >can be used for other things . Replace the spring and ball with a manual valve - open to start, shut to run