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Post by jerseyhighlander on Jun 5, 2019 9:43:40 GMT -5
Stemming from the previous post with the new Super EZ Auto that runs but needed a carb rebuild, I've yet another supply nightmare, again. Taking the Walbro HDC carb apart for the rebuild, it was filthy inside as expected, given the amount of debris in the air box. I have several full rebuild kits for that and the SDC on hand but once again, ran into this issue with the 86-520 check valve kit that, despite being vital, is not part of the rebuild kit. I really didn't want to waste the time to do the rebuild & put it all back together, only to find out it isn't going to run/hold a tune without that stupid little diaphragm dot and a replacement screen for the one that isn't possible to get out without destroying it, so set to an hours long internet search trying to find a supplier that has them and planned to order several.
Started on Walbro's site, went to their distributor list and all of their major distributors have "no stock". Found a small engine supply site that said "usually ships within 24 hours in stock" and put 7 in my cart, along with a few other essentials I'm getting tired of the fiasco trying to find. Paid the bill and pressed the order button.
That was May 15th.... Several days later and my account with "Small Engines PRO Dealer" still says "awaiting shipment" and hadn't been updated since the day after I placed my order. No surprise, there is no phone number at all to contact them on their site. Used their site messaging service and got no reply for another several days and four messages sent. Finally replied back to my confirmation email and got a response, probably cause I threatened to cancel the payment. Was told that the "usually ships within 24 hours in stock" actually means "IF in stock"... and that my items were on backorder & should ship on May 29th. Well, the 29th came & went and a week later, still nothing has changed. I'm beginning to believe I've been scammed. No response at all to my last email inquiry. Saw still apart on my bench. Bad taste in my mouth every time I say the word Walbro... Will be cancelling the credit card charges tomorrow & starting the search again. Is there a Tillotson carb version for the Super EZ's and Super 2's? This is getting really tiring.
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Post by undee70ss on Jun 5, 2019 12:08:27 GMT -5
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Post by jerseyhighlander on Jun 5, 2019 14:28:26 GMT -5
Removal Tool, No, don't have it. Looked for it once or twice, found a set that was something like $75.- and looking at it, can't imagine it's going to be any more effective in removing that part without destroying the screen. Also don't see the point as you still need the hole punched membrane dot that only comes in the kit with the new plug/screen. You have one? Care to share some detailed, close up pictures?
When I looked on ebay first, prior to this episode, there were only 2 or 3, 1 each from different sources and the cheapest was over $10.- plus shipping. The Small Engine Pro Dealer place I'm getting scammed by had them for $4 & change & $2.60 for the 86-523 that is for later HDC carbs. Wanted to get several and end this 3-ring circus and also didn't feel like paying 2-3 times more for them.
Sent an email to Walbro trying to get this sorted out and was told they have stock. Was also told I can't buy direct from them... Except for newer kits and stuff where I can. They also couldn't tell me what the difference is between the 520 & 523 or if they are interchangeable. I really hate corporate America.
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Post by edju1958 on Jun 5, 2019 15:53:51 GMT -5
Maybe you'd be better off taking a gamble on another carb? Ed
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Post by scotts2000 on Jun 5, 2019 16:17:19 GMT -5
I will check when i arrive home...but wouldnt be surprised if i had a bunch ..scott
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Post by blythkd on Jun 5, 2019 19:18:11 GMT -5
Removal Tool, No, don't have it. Looked for it once or twice, found a set that was something like $75.- and looking at it, can't imagine it's going to be any more effective in removing that part without destroying the screen. Also don't see the point as you still need the hole punched membrane dot that only comes in the kit with the new plug/screen. You have one? Care to share some detailed, close up pictures?
When I looked on ebay first, prior to this episode, there were only 2 or 3, 1 each from different sources and the cheapest was over $10.- plus shipping. The Small Engine Pro Dealer place I'm getting scammed by had them for $4 & change & $2.60 for the 86-523 that is for later HDC carbs. Wanted to get several and end this 3-ring circus and also didn't feel like paying 2-3 times more for them.
Sent an email to Walbro trying to get this sorted out and was told they have stock. Was also told I can't buy direct from them... Except for newer kits and stuff where I can. They also couldn't tell me what the difference is between the 520 & 523 or if they are interchangeable. I really hate corporate America.
The removal tool is a little rod just small enough to fit through the hole in the brass seat. It has a groove cut in it very near the end. You remove the snap ring and screen from the check valve seat, insert the end of the tool and slide it sideways to hook the brass seat then slide hammer the seat out of the carb. It is possible to pull it with the tool without damage but when the kit comes with a new seat, not much need to worry about the old one.
I know that was pretty wordy, and maybe you already knew what the tool resembled. My point is it wouldn't be very hard to make one. The rod probably woudln't have to be hard as the brass seat usually doesn't pull hard. Or just pry them out to one side. I'm sure more of them are rocked out to one side then are ever removed with the actual Walbro tool.
Have you checked the check valve or just want to replace it for good measure? I've checked hundreds of them and rarely find a bad one but as all this stuff gets older and older, I find that what used to be the exception is seemingly becoming the rule now on some things.
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Post by jerseyhighlander on Jun 5, 2019 21:34:47 GMT -5
I've only done two other HDC carbs and the saws wouldn't work until I took it all apart again and replaced that check valve. So I'm just going on the fact it's 45 years old and don't want to do this twice. Just makes no sense, if the parts are available. Even if it works, it's likely not going to be 100% what it should.
I've had no issues getting the brass plug/seat out, I've just never been able to get that c-ring out that holds the screen in.
Scott, if you've got a couple you'd be willing to sell, I'd appreciate it. I went into my bank drafts online and found a phone # for this company with the bank info. - They wasted no time taking my money...- Going to call tomorrow and get this straight one way or another.
Another carb wouldn't be undesirable if there was a Tillotson version available. Would probably cost twice as much as I paid for the saw but worth not having this aggravation.
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Post by blythkd on Jun 5, 2019 22:23:24 GMT -5
Yeah that little rubber disc could be prone to age much like diaphragms do.
So did you research Homelite 93910 as well? That would open up your options some.
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Post by scotts2000 on Jun 5, 2019 22:54:50 GMT -5
If the 93910 is a go i have plenty...
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Post by jerseyhighlander on Jun 5, 2019 22:56:24 GMT -5
Yeah that little rubber disc could be prone to age much like diaphragms do. So did you research Homelite 93910 as well? That would open up your options some. It is indeed. The last one I replaced was hardened into a little dome.
The 93910 I believe is just the Homelite branded part number but it's the equivilent to the 86-523 & I need the 86-520. At least as far as I know. Still trying to figure out if they are interchangeable. Last time I looked there was one or two on ebay but the clown wanted $15.- plus shipping for it. Looks like a couple more now.
I get the feeling the 86-523/Homelite 93910a, is just a newer version with a different, maybe updated, material for the valve disc, but can't even get an answer from Walbro on that.
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Post by scotts2000 on Jun 5, 2019 22:58:46 GMT -5
So whats the homelite number for the one you need.. Ill never find a walboro number in this shop lol
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Post by 5terrysupersaws on Jun 5, 2019 23:19:30 GMT -5
Yeah that little rubber disc could be prone to age much like diaphragms do. So did you research Homelite 93910 as well? That would open up your options some. It is indeed. The last one I replaced was hardened into a little dome.
The 93910 I believe is just the Homelite branded part number but it's the equivilent to the 86-523 & I need the 86-520. At least as far as I know. Still trying to figure out if they are interchangeable. Last time I looked there was one or two on ebay but the clown wanted $15.- plus shipping for it. Looks like a couple more now.
I get the feeling the 86-523/Homelite 93910a, is just a newer version with a different, maybe updated, material for the valve disc, but can't even get an answer from Walbro on that.
Which HDC carburetor is on your '74 SEZ-auto ? I see the HDC-1 and HDC-3 using 86-523 on my Walbro List. HDC-4 and up uses 86-520.
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Post by jerseyhighlander on Jun 5, 2019 23:24:26 GMT -5
It's an HDC-4 and the IPL revision 2 shows it as separate part numbers but revision 3 shows the 93910. Also looked at the Super 2 which has the HDC-65 that gave me trouble, as Walbro's site didn't spec a kit for that model and the IPL shows the 93910-A for that one too.
Let me see if I can get an answer from this shop tomorrow before I put you to any more trouble. Appreciate your checking your stash.
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Post by 5terrysupersaws on Jun 5, 2019 23:32:56 GMT -5
It's an HDC-4 and the IPL revision 2 shows it as separate part numbers but revision 3 shows the 93910. Also looked at the Super 2 which has the HDC-65 that gave me trouble, as Walbro's site didn't spec a kit for that model and the IPL shows the 93910-A for that one too. Let me see if I can get an answer from this shop tomorrow before I put you to any more trouble. Appreciate your checking your stash. HDC-65 is an 86-601 check valve kit. Good luck tomorrow !
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Post by undee70ss on Jun 6, 2019 4:56:01 GMT -5
Removal Tool, No, don't have it. Looked for it once or twice, found a set that was something like $75.- and looking at it, can't imagine it's going to be any more effective in removing that part without destroying the screen. Also don't see the point as you still need the hole punched membrane dot that only comes in the kit with the new plug/screen. You have one? Care to share some detailed, close up pictures? Here’s mine. It’s not a genuine Walbro kit, it’s a china aftermarket one, but works for me.
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Post by undee70ss on Jun 6, 2019 5:19:59 GMT -5
First, out of all the saws I worked on, only 2 needed the check valve replaced. The first one (most memorable) was on a Super 2. Carb was super nasty, after cleaning and a kit, if it started, it would idle somewhat, but as soon as the throttle was touched it died. Tried another carb and it ran great. Now I'm the type of person who doesn't like being defeated, and after a lot of online reading, determined the check valve needed replaced, so that's what I did. I'm pretty sure the valve was stuck closed, but I didn't know how to test at that time. You can also test the check valve, see on how to in link that I posted. I can tell you from experience, your test hose must have a very clean and straight cut. Sawing a hose with a knife leaves surface irregularities and will leak. I don't test the check valve everytime, but I do pressure test every carb I work on before reinstalling. houseofhomelite.proboards.com/thread/5820/homelite-carb-adjusting-pressure-testing
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Post by undee70ss on Jun 6, 2019 5:24:16 GMT -5
Here is a list of different carbs and what check valves they use.
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Post by undee70ss on Jun 6, 2019 5:31:05 GMT -5
For carbs that use 65386, number was superseded to 93910B. See pic.
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Post by undee70ss on Jun 6, 2019 5:34:25 GMT -5
So whats the homelite number for the one you need.. Ill never find a walboro number in this shop lol Sure you can, on most of them, the Walbro part number is also on the package. Some of the ones you have in your pic have the walbro number.
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Post by undee70ss on Jun 6, 2019 5:45:17 GMT -5
Here’s a few on eBay right now, clearly has the Walbro number. I believe 93910 doesn’t come with a Welch plug, 93910A and so on (B, C ect...) also has a Welch plug.
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