B & S Md# 33r777-0005-g1 replaced by a B & S 33S877-0043

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Hello HR.

The head is the first to warp from excess heat. That is not uncommon on this design.

To re true the head gasket surface I use a section of tempered glass or a glass tabletop (when my wife is not around) and come 400 grit wet-dry sandpaper. I sit the head on the sandpaper (head gasket surface down) and lightly scrub the head back and forth on the sandpaper.

I stop and check every 10-20 strokes to see the progress. It is easy to tell what is being sanded and what is not.

Once the entire surface looks uniform, it is ready to be reinstalled with a new head gasket.

Make sure to reset the valve clearances.
Greetings Auto Doc's,


To re true the head gasket surface I use a section of tempered glass or a glass tabletop (when my wife is not around)
:LOL: I've upset My Wife a few times by rebuilding an Oil Burner Gun, &/or other equipment on the Kitchen Table.

If I'm understanding correctly then "Re-surfacing" is basically "Hand sanding the Head" to an even surface. Cool!
Is the "Head Gasket" also called the "Cylinder head Gasket"?
 
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Rivets, I haven't disregarded any answer that You, or Auto Doc's has given me, & I am absolutely appreciate the help that You both have given.

With that said,....I was Trained to not just throw a part away, but to tear it down, & find out why it Broke/Quit. Furthermore,.... Rebuilding the original motor, will let me have a back up motor waiting for the time when the New Motor quits,... Which I would also repair, as long as The economy, & Situation in the World would permit that.

"Are you telling me that your customers would do the same on equipment you could repair for them"

Do Not Twist My Words Sir, I Did Not State Any Such Thing!.

I have ALWAYS presented Repairing Equipment, over Replacement, For More Than 30 Years. And I have Always asked My Customers whose Equipment Warranties, have expired whether they wanted to continue repairing the Equipment, or replace it with Equipment that was more efficient, & with Part & Labor Warranties.

I had a "Well off", Customer that had a Wiiliamson Oil furnace, manufactured in 1956.I kept her furnace properly operating up to 2002, when she died of a Heart Attack.,... Her Children sold them home.

I've been called in to give a Bid on replacing Furnaces, Air Conditioners, etc., many times, where the Customer was told by a Con-man that their unit could not be repaired, so they wanted a bid from me. I asked, each time, what was wrong with their unit, & if I could take a look at it. Many times, all that was needed was a simple repair, such as replacing Fuses, a Contractor, Capacitors, Thermocouple etc!! I've even replaced Heat Exchangers, & Compressors

And, I've had, & have Customers, that once the Warranty expires, they replace their Equipment, which was/is their Choice.

Perhaps You should "Get out of this thread",& Sir,.... Look in th' mirror for a definition of being "Hard Headed".
 

Auto Doc's

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Greetings Auto Doc's,



:LOL: I've upset My Wife a few times by rebuilding an Oil Burner Gun, &/or other equipment on the Kitchen Table.

If I'm understanding correctly then "Re-surfacing" is basically "Hand sanding the Head" to an even surface. Cool!
Is the "Head Gasket" also called the "Cylinder head Gasket"?
Hello HR,

Yes, it is known as the "cylinder head gasket". Yes, you are sanding the head to true up the cylinder head gasket mounting surface so it will properly seal again.

I specify a tempered glass table because it will provide a true level surface. Most work benches and wood tables are distorted, so they would not be a good idea to use.

On a side note: Make sure you wash the entire cylinder head down really well with Dawn dish soap and water when the sanding process is finished. Rinse with clear water. Then make sure to blow everything nice and dry really well.

There should be some good videos online that cover the reassembly process. The cylinder head bolt torque is crucial for a successful repair.

There are also manuals available online to help with the finer details.

If you need further help, just ask.
 
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