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June 11, 2011
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gabmuks
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| Lifetime Member | posts 11 | |
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Post edited 12:52 pm – June 11, 2011 by gabmuks
Finally getting around to valve lapping after 400 hrs.. Never opened an engine before.
I was hoping to attach pictures to this post for comment.
Can anyone explain how to attach pictures on your website?
Note: I already have the engine disassembled, valves removed. I haven't cleaned
it up yet or lapped the valves yet. The pictures that I hoped to post are of the internal
parts; head, valves, valve seats etc.. I am mainly concerned with the appearance/condition of these parts.
I was hoping for some feed back…any feed back…whether "Good Bad or Ugly".
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June 11, 2011
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Tinbender
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| Lifetime Member Elite | posts 385 | |
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Post edited 12:55 pm – June 11, 2011 by Tinbender
 
Ok. Click on the tree icon for "insert image" a box pops up, click "browse". Simplepress file manager pops up, this is where you can store all your pictures. Click upload tad at top, then browse at lower left. The pictures you upload have to be shrunk in paint, picassa etc. to less than 500kb. Click upload, then close. the first insert image box is still there, click browse, find your picture in the file manager and upload it. I know this sounds complacated but after loading a few pics it becomes second nature.
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June 11, 2011
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gabmuks
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| Lifetime Member | posts 11 | |
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Hi Tinbender
What is that contraption? Log splitter maybe?
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June 11, 2011
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Tinbender
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| Lifetime Member Elite | posts 385 | |
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Post edited 1:29 pm – June 11, 2011 by Tinbender
Yep, the wife picked it up at a garage sale for $35.00. The old Briggs 4hp needed more than lapping on the intake valve so I threw on a Harbor Freight 6hp. Set your logs against the screw sideways and she splits real good 
Edit: gabmuks, did you mean valve adjust?
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June 11, 2011
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pepage
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| Lifetime Member Expert | posts 119 | |
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Purchased one of these splitters that ran off a tractor PTO. Worked great but there were times I had to cut the log off with a chainsaw. Tractor did not have enough power to split the log but enough to bury the tip. Two years after I purchased the splitter, I received a letter telling me to break off the tip and not use the splitter anymore. Sent a letter asking for return of my money but no reply. Did not expect to get a reply but sending the letter made me feel better. The splitter was not very good at splitting stove wood. Some logs would just become propellers!
I heard they even made some of these splitters to run off the rear tire of a car.
Phil
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June 11, 2011
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gabmuks
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| Lifetime Member | posts 11 | |
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Sorry, but I've reduced the file size of all my pictures to 300kb or less for each one.
But none of them will post here. This is the error message that I get from your site.
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 2592 bytes) in /home1/ctoanet/public_html/ctoa/wp-content/plugins/simple-forum/editors/tinymce/plugins/filemanager/fm-support.php on line 153
Does anyone have any ideas?
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June 11, 2011
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gabmuks
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| Lifetime Member | posts 11 | |
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June 11, 2011
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Bob Rooks
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| Lifetime Member Platinum Elite | posts 868 | |
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Post edited 11:04 pm – June 11, 2011 by Bob Rooks
Carbon and soot are the Nemesis of diesel engines but are inherent to their operation.
Your engine doesn't look bad at all, you can expect some. Wish the pics were lighter to reveal if liner cross hatching is present or they are glazed, which contributes to blow-by.
Several things can cause excessive carbon build up: Low operating temperature, late injector timing, dirty air cleaner, and faulty injectors. To name a few.
I think I understand what you mean by "lapping". You are referring to valve "overlap" which is controlled by the camshaft grind. There is nothing you can do about it, it's engineered into the design.
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June 12, 2011
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gabmuks
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| Lifetime Member | posts 11 | |
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Post edited 8:57 am – June 12, 2011 by gabmuks
Thanks Bob
I guess I thought the lapping was necessary because the lapping tool came with the tractor. It's basically just a stick of wood with a suction cup on the end. I've read a little about it on net. It seems it is just done to re-seat valves after so many hours. After I read your post, I read some more on line stuff about lapping. Seems it was used more in the old days than now…but I'm old. Has anyone else here done this proceedure
on their KM385?
Now that you mentioned it, I'll take a look at the cross-hatching. Good idea!
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June 12, 2011
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gabmuks
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| Lifetime Member | posts 11 | |
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Tinbender wrote; "Yep, the wife picked it up at a garage sale for $35.00. The old Briggs
4hp needed more than lapping on the intake valve so I threw on a Harbor
Freight 6hp. Set your logs against the screw sideways and she splits
real good" 
CooI!!! I've never seen anything like that. I am getting a bit tired of splitting by hand.
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June 12, 2011
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Bob Rooks
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| Lifetime Member Platinum Elite | posts 868 | |
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gabmuks wrote:
" I read some more on line stuff about lapping. Seems it was used more in the old days than now."
Yep, don't know of anyone that does it anymore, I wouldn't bother with it. For all the trouble it would take, I'd just take the head to an automotive machine shop and have them do a three-angle grind and forget about it.
Tin wrote:
"…so I threw on a Harbor Freight 6hp."
How do you like those engines?
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June 12, 2011
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Tinbender
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| Lifetime Member Elite | posts 385 | |
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The engine that came with the log splitter worked for awhile then quit one day. Took the head off to find the intake valve stuck open. I lapped it and checked it with dye, put it back together and it ran 6-7 more times before it did the same thing. Then I noticed that the valve guide was shot, and the engine was so old the local small enging shop could not pull up the numbers on it.
I need to pull the Brigs 5hp I.C. on the rototiller apart as soon as I'm done with it for the year, it's popping out the exaust once warm like it has a burnt valve. Hopefully it's got some carbon stuck in it and I can lap the valves and be done. I doubt it, but one can hope, right?
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June 12, 2011
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gabmuks
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| Lifetime Member | posts 11 | |
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June 12, 2011
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Bob Rooks
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| Lifetime Member Platinum Elite | posts 868 | |
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I doubt if it's carbon on the exhaust valve if you run it at governed speed much. Most likely fuel deposits on the intake valve.
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June 12, 2011
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Tinbender
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| Lifetime Member Elite | posts 385 | |
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Those liners look good
Bob, my only gripe with my HF engine is I need to clean the carb, I have to prime it to start, but it starts right up and runs great even at -10 degrees. A really good copy of a Honda engine. Leaving fuel in it all year is my fault, and most likley the reason the carb needs attention. Should have picked up another one a few weeks back, they had them fo $79.00 on close out, going with another brand now.
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June 12, 2011
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gabmuks
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| Lifetime Member | posts 11 | |
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I wouldn't mind having the valves ground professionally, except for the fact that I've
been unemployed for almost a year now. I've never been able to collect unemployment so I have no income at all. Fortunately my wife still has her job.
Besides, I have lots of free time and their's plenty of stuff around here that needs to be done. I don't know bout you guys, but it seems to me the work to be done on the house, the out-buildings, the equipment repair/maintenance, the gardening etc., is a full time job by itself. Once I get the tractor back together and the fel back on, I have to move some rocks and ground from the west side of the house. Wife wants another patio door put in that side like I just finished doing on the east.
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June 15, 2011
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Tinbender
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| Lifetime Member Elite | posts 385 | |
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The ol' never ending chore list. Nice job on the door I get up at 5:00, have breakfast and work on chores 'till 8:30 and go to work. Come home and do it again 'till dark-thirty. This time of year there is just not enough time in the day. The kid has her last day of school today which means I HAVE to have her pool put up tonight, then on to the six months worth of projects to finish in the next three
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