1994.5 - 1997 7.3L Power Stroke Diesel  

starter upgrade?

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Old 01-17-2018, 09:05 PM
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starter upgrade?

I am having issues finding info on doing the starter mod. What do I need to do or get? My truck seems slow on the cranking . It's not bad but after putting in 2 1000 amp batteries I feel it should be much faster. some times it is.
 
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Old 01-17-2018, 09:18 PM
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Need a 2 bolt SD starter. I use a 02 year model. The only thing that need to me done is the small ring terminal need to be drilled out a little for it to fit the new starter
 
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Old 01-17-2018, 09:19 PM
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Originally Posted by mcali2
I am having issues finding info on doing the starter mod. What do I need to do or get? My truck seems slow on the cranking . It's not bad but after putting in 2 1000 amp batteries I feel it should be much faster. some times it is.

You have a couple options. A genuine Denso starter is a nice upgrade, bolts right up. Another less common upgrade is to use a 6.7 Powerstroke starter that has been modified. It bolts up to, the 7.3 and spins the engine over quite a bit faster than stock. I have a brand new Ford 6.7 starter modded setting in my garage.

Have you tested the starter for amp draw? What do your cables ohm out at? It sounds odd you say sometimes it starts slow.
 
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Old 01-17-2018, 09:28 PM
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Originally Posted by 1fastktm
You have a couple options. A genuine Denso starter is a nice upgrade, bolts right up. Another less common upgrade is to use a 6.7 Powerstroke starter that has been modified. It bolts up to, the 7.3 and spins the engine over quite a bit faster than stock. I have a brand new Ford 6.7 starter modded setting in my garage.

Have you tested the starter for amp draw? What do your cables ohm out at? It sounds odd you say sometimes it starts slow.
2000-2003 7.3 starter is a 2 bolt gear reduction starter and will spin it faster than the stock 3 bolt planetary gear starter and less work.
 
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Old 01-17-2018, 09:43 PM
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Originally Posted by fordpride
2000-2003 7.3 starter is a 2 bolt gear reduction starter and will spin it faster than the stock 3 bolt planetary gear starter and less work.
The 6.7 starter will spin faster than the Visteon/TYC 2 bolt OSGR starter in later 7.3s The 6.7 starter is an upgraded OSGR starter compared to the 7.3 version.

I like the 6.7 starter since it is brand new Ford. Only other option is a brand new Denso starter if you want Tier I or II Ford supplier. Otherwise you are stuck with remans, china copies, or "new" parts store starters.
 
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Old 01-17-2018, 10:53 PM
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Originally Posted by 1fastktm
You have a couple options. A genuine Denso starter is a nice upgrade, bolts right up. Another less common upgrade is to use a 6.7 Powerstroke starter that has been modified. It bolts up to, the 7.3 and spins the engine over quite a bit faster than stock. I have a brand new Ford 6.7 starter modded setting in my garage.

Have you tested the starter for amp draw? What do your cables ohm out at? It sounds odd you say sometimes it starts slow.
Man, I'm electrical dumb. I can plug and play. It just seems it should spin faster. I could be wrong. The cables could be getting old. The ends are cut off and clamped into the post via the aftermarket battery clamp on a battery. How do I Ohm them?
 
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Old 01-17-2018, 11:28 PM
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to ohm them out I have to pull them off completely right or just one end and get the other end close enough for the meter to read?
 
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Old 01-18-2018, 12:44 AM
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http://m.thoroughbreddiesel.com/denso-stock-replacement-starter-94-03-ford-powerstroke-7-3l.aspx

That is where I bought my Denso. Amazing difference.
 
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Old 01-18-2018, 08:43 AM
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ohming them out isn't going to give good results


measure voltage drop when cranking will tell you how bad they are
 
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Old 01-18-2018, 08:49 AM
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Originally Posted by mcali2
Man, I'm electrical dumb. I can plug and play. It just seems it should spin faster. I could be wrong. The cables could be getting old. The ends are cut off and clamped into the post via the aftermarket battery clamp on a battery. How do I Ohm them?
In my opinion, those clamp on cable ends are a temporary fix at best. They are just another place for corrosion to set in. I would go with new cables, either premade or you can get everything you need to make the cables from a good parts house. If you decide to make the cables use at least 00 gauge cable.
 
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Old 01-18-2018, 09:06 AM
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Originally Posted by knottyrope
ohming them out isn't going to give good results


measure voltage drop when cranking will tell you how bad they are

And how do I do that? Measure power at the battery post while cranking then the same at the starter?
 
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Old 01-18-2018, 09:08 AM
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Originally Posted by 1fastktm
You have a couple options. A genuine Denso starter is a nice upgrade, bolts right up. Another less common upgrade is to use a 6.7 Powerstroke starter that has been modified. It bolts up to, the 7.3 and spins the engine over quite a bit faster than stock. I have a brand new Ford 6.7 starter modded setting in my garage.

Have you tested the starter for amp draw? What do your cables ohm out at? It sounds odd you say sometimes it starts slow.
Are you offering the starter for sale? how much?
is the 6.7 faster than the denso.
 
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Old 01-18-2018, 10:00 AM
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6.7 starter modified? I have not heard of this. Can you explain?
 
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Old 01-18-2018, 10:17 AM
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Originally Posted by mcali2
And how do I do that? Measure power at the battery post while cranking then the same at the starter?
correct. if you have a big drop across the wire, that is a voltage loss to the starter.


I put my lead on battery post and to starter post to measure


then engine block to neg on battery


then test both with one battery removed and repeat on other battery
 
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Old 01-18-2018, 12:15 PM
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Now I'm more confused... how to you measure power if both leads are on the same side? + or -


I was thinking taking power reading at battery red to + post and black to Neg post. get reading. then go to starter, red to + on starter and Black to the starter base or grounding wire if there is one. is this the way to do it?


I'm just reading voltage right.
Also if there was a power drop would it not be the same if cranking or not cranking the engine?


thanks for edumacating me.
 


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