Can't Start New Engine

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Can't Start New Engine

Postby GooseCreek Farms » Sat Jan 29, 2005 2:29 pm

Just had my Cub engine rebuitl by a professional shop. New sleeves, pistons and valve job. I now have the tractor put back together, but can't get it started. I adjusted the lifters (per book) at .013. I am quite sure it's timed correctly. I put the #1 piston at TDC and checked the distributor and it appears to be at # 1 spark firing position. The compression does seem low. Any thought on where my problem may be and what I could do as for a next step in trouble shooting? Thanks for your help :cry:
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Postby Arizona Mike » Sat Jan 29, 2005 3:08 pm

I would give a call to the professional shop. I assume you put in new rings. The compression should not be low.
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Postby Bigdog » Sat Jan 29, 2005 5:03 pm

I don't question anything you have done so far but have you double checked to make sure #1 is @ TDC on the compression stroke rather than exhaust?
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Postby John *.?-!.* cub owner » Sat Jan 29, 2005 5:35 pm

Try squirting a coupel teaspoons of oil in each cylender to get compression up until it starts.
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Postby Ron L » Sat Jan 29, 2005 6:34 pm

Make sure your getting spark. Then check fuel. If they're both OK, probably need timing adjust.......... Also, check this http://www.farmallcub.com/HLChauvin.htm ... 't%20Start
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Postby Jack Donovan » Sat Jan 29, 2005 7:27 pm

The low compreshion tells me that the cam timming is off to the pistions or crank if you wish.
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Postby Jim Hudson » Sat Jan 29, 2005 8:53 pm

Check with the professional shop and ask if they had some literature on the Cub and how to set the timing gears. Are did they just look at it before and thought they could remember. There answer will depend on how it affects them. Think I would just go ask to look at there info for some info you need to see if they even had any.
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Postby Eugene » Sun Jan 30, 2005 2:33 am

Before you go jumping all over the machine shop. There is a double check on the valve timing in the I&T, IH-8, manual on page 23, paragraph 56. It's pretty simple.

The information in the manual may not be correct. John the gosh darn Cub Owner can hopefully provide the correct information.

If the machine shop did set the timing gears incorrectly you will be able to show them the problem and how you arrived at your conclusion. Darn that would be a big %^^%* headache now that you have the Cub back together.
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Postby GooseCreek Farms » Sun Jan 30, 2005 7:01 pm

I finally got the Cub started today. After double checking the timing, which was OK, I added a little oil to each cylinder, but still couldn't get it started. I then tweeked the timing at the distributor and got it to fire a couple of times. I did a little more fine tuning and it finally started. I sure do appreciate all of your suggestions. I am new to this board and will probablly be coming to you guys again in the future. Thanks again for all of your help. :lol:
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Postby Ricaroo » Sun Jan 30, 2005 7:56 pm

I have a 1958 cub, Does it have sleeves? I didn't think it did

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Postby John *.?-!.* cub owner » Sun Jan 30, 2005 8:05 pm

I have heard of them being installed a time or two, but they do not normally have sleeves.
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63 Cub with Sleeves

Postby GooseCreek Farms » Mon Jan 31, 2005 8:08 am

My Cub is a 1963 and it has sleeves.
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Postby Matt Kirsch » Mon Jan 31, 2005 4:18 pm

Cubs aren't supposed to have sleeves. All this means is that at one time, the engine was so badly worn that they bored it out and punched in some sleeves.
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Postby cowboy » Mon Jan 31, 2005 4:37 pm

:P Yep have to agree with that my '64 does not have sleeves. :lol:
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