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D 15 Head gasket

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ACinSC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Topic: D 15 Head gasket
    Posted: 23 Jun 2022 at 3:21pm
My old head gasket looks like a FEL-PRO 7914 . Can't confirm that on-line . Anyone know ? This is a 149 cubic inch gas engine . THANKS !
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2022 at 3:33pm
Think I found it . It's a FEL-PRO 7914 SB . THANKS !
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Tracy Martin TN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2022 at 5:05pm
Make sure it has the fire rings.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2022 at 5:46pm
Not sure what fire rings are? Metal rings around each cylinder? Thanks Tracy
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jun 2022 at 2:22pm
My service manual says to use sealant on both sides of the gasket . Just wanted to ask what you fellas use ? My head is still at the machine shop . I'm just trying to round everything up . Probably buy new bolts . Guess they're just reg grade 8 bolts ? THANKS !!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jun 2022 at 9:35pm
Yes, steel rings around cylinder. IIRR, there is a special head bolt with a washer in center of head. Probably should replace the washer. HTH Tracy
No greater gift than healthy grandkids!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 2022 at 6:17am
Thanks Tracy. Don't remember seeing a washer but I'll check.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 2022 at 6:24am
You want new head bolts? That's fine but unless they are pitted, not needed. There is no "special" head bolt in the center location on a G-149 engine.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 2022 at 7:58am
Thanks Dr Allis, I do have a couple that are pitted
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jun 2022 at 11:51am
Back from the machine shop . They found 2 stripped bolt holes that they fixed . Also a bent pushrod and a broken rocker arm support . Brenda at Sandy Lake to the rescue on them . Sad thing is when I put it all back together and pressure test the cooling system I may still have coolant in the oil . Oh well . Fav son should post pics soon . 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WeisAC2 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 2022 at 7:22am



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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 2022 at 5:26pm
When tightening down of loosening the rocker arm, make sure you do it evenly, not all at one tower. It will help out. HTH Tracy
No greater gift than healthy grandkids!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 2022 at 6:07pm
Thanks Tracy I'll keep that in mind. I'm thinking that support was broken the last time someone was in there. It had those 2 washers under it. Not sure why? That stud was also slightly bent. I'm guessing that's where the bent pushrod came from? Thanks again
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jul 2022 at 9:23pm
Do not over tighten rocker hold down bolts. That is what brakes the stands.                         MACK
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jul 2022 at 12:52pm
Thanks Mack , I'll torque them to 20-25 lbs like my service manual says . A little at a time like Tracy suggested .
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jul 2022 at 3:41pm
Finally have all my parts . Noticed I have no sleeve stand out on the block . Book says I need .002 -.005 . Starting to think I should pull this engine and get it rebuilt ? That should fix my coolant in oil problem . Imagine that'll cost at least $1,000 ? It's only money right ? Thanks !
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jul 2022 at 3:45pm
You might buy the parts for that price, Although you just had the head done, so now onto the short block. Those rocker arm are common to be found broken on the 138/149/160 engines.  
If it was fun to pull in LOW gear, I could have a John Deere.
If you can't make it GO... make it SHINY
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jul 2022 at 10:14am
Thanks Paul. I guess it is what it is. Crazy thing is I thought everything was fine before I found coolant in the oil.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jul 2022 at 10:42am
I have never seen an A-C gas engine EVER have a sleeve stand-out problem. But, I sure have seen a lot of Buda/A-C diesels, as that is their biggest flaw. Do you realize what you are now getting into ?? New sleeves and possible block decking or even cut the counterbores square. I really don't think you have an issue. It may not be .005", but I'll bet it isn't flush and even then, it isn't a high compression diesel. Coolant in the oil wasn't diagnosed properly, so now you're guessing again. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jul 2022 at 11:04am
Thanks Dr Allis. I guess as was already suggested I should put the head back on and put 12 lbs of pressure on the cooling system overnight and see if I have a leak out of the oil pan. Thanks again
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jul 2022 at 8:58am
Update . Finally got a rad pressure tester (Auto Zone) that would work . It held 10 PSI all night with no coolant leak . Should have everything back together soon and finish the oil change I started a month ago . THANKS !
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2022 at 7:06am
Another update. Finally ran my tractor about 15 minutes. Runs good. No leaks. Is it too soon to re torque the head and manifold ? Also check valve clearance ? Thanks! I set valves at .015
Head at 80 lbs
Manifold at 25
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2022 at 9:50am
I would advise running for an hour or so to be sure it is heat soaked. Park it and come back tomorrow when totally cold and do your re-torque and reset valves. .015 is good on 226's but don't know about the little ones. Doc will know.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ACinSC Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2022 at 10:05am
Thanks Steve . Sounds like good advice .
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 05 Aug 2022 at 5:35pm
Very good advise! Tracy
No greater gift than healthy grandkids!
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