26TT first start

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Rod Petrie
Posts: 87
Joined: Sun Jun 16, 2019 10:44 am
First Name: Rod
Last Name: Petrie
* REQUIRED* Type and Year of Model Ts owned: 1926 TT
Location: Thedford, Ne

26TT first start

Post by Rod Petrie » Fri Apr 23, 2021 5:56 pm

After almost 2 years of restoration I decided to start my 26TT. It took awhile and had to really rich the carb to get it started. It runs fine at idle but when the throttle is advanced it spits, sputters and backfires. Advancing the spark doesn't seems to help much. I tried lean until it almost died but so far I haven't found the right combination. I know it is just a matter of trial and error. I just needed to vent a little.
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CudaMan
Posts: 2531
Joined: Fri Jan 04, 2019 4:17 pm
First Name: Mark
Last Name: Strange
* REQUIRED* Type and Year of Model Ts owned: 1924 Cut Off Touring (now a pickup)
Location: Hillsboro, MO
Board Member Since: 2013

Re: 26TT first start

Post by CudaMan » Fri Apr 23, 2021 6:11 pm

Backfiring through the carb means it's lean and/or the timing is too advanced. Doublecheck the timing first, make sure that when the timing lever is fully up that #1 plug fires with the #1 piston about 1/8 inch past top dead center on the firing stroke.

Once you've verified the timing and eliminated it as the culprit, start looking for intake manifold or other vacuum leaks. If you don't find any leaks, see if you can borrow a known good carburetor from a friend and try it.

Good luck! :)
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
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CudaMan
Posts: 2531
Joined: Fri Jan 04, 2019 4:17 pm
First Name: Mark
Last Name: Strange
* REQUIRED* Type and Year of Model Ts owned: 1924 Cut Off Touring (now a pickup)
Location: Hillsboro, MO
Board Member Since: 2013

Re: 26TT first start

Post by CudaMan » Fri Apr 23, 2021 6:41 pm

Also, doublecheck the firing order, it should be 1-2-4-3. Check your coil box and timer wiring per this diagram:
Attachments
stock_ignition_wiring.jpg
stock_ignition_wiring.jpg (56.01 KiB) Viewed 2614 times
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
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John kuehn
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Joined: Sun Jan 06, 2019 8:00 pm
First Name: John
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* REQUIRED* Type and Year of Model Ts owned: 19 Roadster, 21 Touring, 24 Coupe
Location: Texas

Re: 26TT first start

Post by John kuehn » Fri Apr 23, 2021 8:58 pm

Could be something as simple as a loose wire around the coil box area. The little things will drive you crazy. My 24 Coupe got to doing something real similar to yours and after much head scratching it turned out to be a slightly loose coil box wire on no.2. It ran OK but upon acceleration it started cutting out. Tighter up the nut and that cured it.
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Steve Jelf
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* REQUIRED* Type and Year of Model Ts owned: 1923 touring and a few projects
Location: Parkerfield, Kansas
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Re: 26TT first start

Post by Steve Jelf » Fri Apr 23, 2021 11:00 pm

Here's timing: http://dauntlessgeezer.com/DG97.html
The inevitable often happens.
1915 Runabout
1923 Touring
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Topic author
Rod Petrie
Posts: 87
Joined: Sun Jun 16, 2019 10:44 am
First Name: Rod
Last Name: Petrie
* REQUIRED* Type and Year of Model Ts owned: 1926 TT
Location: Thedford, Ne

Re: 26TT first start

Post by Rod Petrie » Mon Apr 26, 2021 9:27 pm

I knew the timing and wiring was OK because I had checked it several times. So I called Ross Lilliker who had rebuilt my engine and asked for his advice. He suggested a carb float check. I removed the plug from the bottom of the carb and let gas run out for 30 seconds replaced the plug and started it up. It now runs like a charm. Thank-you Ross. Next step is learning how to drive.
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Topic author
Rod Petrie
Posts: 87
Joined: Sun Jun 16, 2019 10:44 am
First Name: Rod
Last Name: Petrie
* REQUIRED* Type and Year of Model Ts owned: 1926 TT
Location: Thedford, Ne

Re: 26TT first start

Post by Rod Petrie » Mon Apr 26, 2021 9:48 pm

20210426_145127.jpg
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Topic author
Rod Petrie
Posts: 87
Joined: Sun Jun 16, 2019 10:44 am
First Name: Rod
Last Name: Petrie
* REQUIRED* Type and Year of Model Ts owned: 1926 TT
Location: Thedford, Ne

Re: 26TT first start

Post by Rod Petrie » Mon Apr 26, 2021 9:53 pm

IMG_20200705_100256944_HDR.jpg
The day grandpa gave me his 26TT (circa 1960)
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Dallas Landers
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Joined: Sun Jan 06, 2019 12:26 pm
First Name: Dallas
Last Name: Landers
* REQUIRED* Type and Year of Model Ts owned: 26 Rpu, 23 TT, 24 coupe,
Location: N.E. Indiana

Re: 26TT first start

Post by Dallas Landers » Mon Apr 26, 2021 9:56 pm

Good looking TT Rod. The before and after photos are great. Thanks for showing us. Now drive the wheels off and show what a real truck looks like.
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