Briggs 8 HP using oil - Snowblower Forum : Snow Blower Forums
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post #1 of 26 Old 04-26-2015, 08:35 PM Thread Starter
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Briggs 8 HP using oil

I have a '78 Toro 826 with a Briggs model 190402. Last winter I had to add oil every 2nd time I cleaned the driveway. I tore it down to put fresh rings in it and lap the valves this weekend and found slight to medium play in the valve guides - exhaust is the worst. What do I do now? If it goes another 2-3 years, that's OK with me or I may even sell it this fall.
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post #2 of 26 Old 04-26-2015, 11:44 PM
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predator 412cc repower, you might be able to drill out the current guides and install inserts, if not it probably wont last much longer. i would probably fix it the way i described for now and when it gets really bad replace it with the predator
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post #3 of 26 Old 04-27-2015, 07:41 AM Thread Starter
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Do you need special tools to insert guides?
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post #4 of 26 Old 04-27-2015, 08:53 AM
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Can the guides be knurled on a small engine ?? Short of replacing a valve guide knurling on an automotive head is pretty common during a rebuild.

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post #5 of 26 Old 04-27-2015, 10:29 AM Thread Starter
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That's a good question. I suppose I should call a machine shop about that. I talked to a small engine shop that says they don't repair the engine when they find worn guides. They also said they've got used b&s 8 HP engines for $150.
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post #6 of 26 Old 04-27-2015, 01:56 PM
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i woild be looking at the 301cc predator motor

current machines
1-toro2450E-38419. 1-toro3000E-38435. 1-toro 3650E-38445
2-toro 521E-38052. 1-toro xl824pt 38086
1-.............,TORO XL 624ps..............
1-............, TORO XL 824ps..............
william
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post #7 of 26 Old 04-27-2015, 02:50 PM
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That's the problem with a small engine, the labor to repair if you're paying out of pocket just doesn't make sense. The parts are usually bad enough.

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post #8 of 26 Old 04-27-2015, 04:40 PM Thread Starter
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The machine shop claims they can put inserts in for $12 per valve. Seems cheap to me. I figure I'll let them take a look at and do it if they don't see any other obvious problems. If things start getting expensive, I'll probably slap it back together and run til its totally dead.
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post #9 of 26 Old 04-27-2015, 07:54 PM
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It sounds believable. There are special tools to ream the stock block then the inserts just press in. I don't hear of it being done that often but it's an age old process.
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post #10 of 26 Old 04-28-2015, 08:30 AM
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Hopefully that is all that is needed to repair the engine. I used to have an old Briggs that puffed oil and rather than dump money into it I replaced it. If you can repair it for a reasonable cost go for it and if it works well than it is money well spent.
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