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FE Power Forums => FE Technical Forum => Topic started by: 67428GT500 on March 11, 2020, 10:47:35 PM

Title: D4TE 105 blocks. Distributor bushing?
Post by: 67428GT500 on March 11, 2020, 10:47:35 PM
I am trying to get clarification. Understand the true FT blocks have a compressor drain back to the block. Is that how the blocks are identified that need the distributor? It wasn't measured previously to assembly.
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: countrysquire on March 12, 2020, 01:46:11 PM
My D4TE block has the compressor drain hole on the passenger side skirt, but has the 'automotive' size hole for the bottom of the distributor.  I was expecting to need a bushing, so I was surprised by this.
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: 67428GT500 on March 12, 2020, 10:43:11 PM
It's confusing and I should have taken the precaution and measured. I understood it was only blocks used with dump trucks and such.
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: fekbmax on March 13, 2020, 12:51:44 AM
Mostly 331, 361, 391 truck blocks but there are several others. I'm just naming the most popular ..  ::) give me a break guys lol..
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: Riderjeff on March 13, 2020, 11:27:25 PM
I just took my D4TE block down to the machine shop last Saturday, and just before leaving I did a quick and dirty measurement of the distributor hole using drill bits to check the ID.  Seemed to me it was an easy fit for a 7/16” shaft. Can anyone tell me if that’s the large or small hole? My rebuilder block didn’t come with a distributor.
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: Riderjeff on March 19, 2020, 03:05:19 PM
I just took my D4TE block down to the machine shop last Saturday, and just before leaving I did a quick and dirty measurement of the distributor hole using drill bits to check the ID.  Seemed to me it was an easy fit for a 7/16” shaft. Can anyone tell me if that’s the large or small hole? My rebuilder block didn’t come with a distributor.

Sorry for being such a newb, but still looking for an answer to this.

THX
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: Heo on March 20, 2020, 03:15:54 AM
I just took my D4TE block down to the machine shop last Saturday, and just before leaving I did a quick and dirty measurement of the distributor hole using drill bits to check the ID.  Seemed to me it was an easy fit for a 7/16” shaft. Can anyone tell me if that’s the large or small hole? My rebuilder block didn’t come with a distributor.

Sorry for being such a newb, but still looking for an answer to this.

THX

I can take meassures later today
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: Heo on March 20, 2020, 12:58:45 PM
A 7/16 bolt is a loose fit, 1/2 is a no go on a passenger block
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: Riderjeff on March 20, 2020, 02:36:51 PM
A 7/16 bolt is a loose fit, 1/2 is a no go on a passenger block

So, is the 7/16" hole a "passenger" distributor hole, and a 1/2" a truck/HD sized hole?  Thanks for checking, but not having more than one block lying around, I can't compare one to another.  I think I'll get hold of POP to maybe clear this up.
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: Tom Gahman on March 20, 2020, 07:05:25 PM
Rider, a29/64 drill bit is a nice fit (.448)
A used fe distributor is (.450)
Hope this helps you.
 tom 
Passenger car
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: thatdarncat on March 20, 2020, 07:37:58 PM
The bushing Ford used to service to adapt the FT block for a FE sized distributor is part number C4TZ-12367-A. I measured the O.D. of an NOS bushing and it is .518”

(https://i.postimg.cc/fL2zXySd/EADF9601-7739-4680-A053-F41-F556-BDBEA.jpg) (https://postimg.cc/LYPFFHT4)
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: Heo on March 21, 2020, 11:23:53 AM
A 7/16 bolt is a loose fit, 1/2 is a no go on a passenger block

So, is the 7/16" hole a "passenger" distributor hole, and a 1/2" a truck/HD sized hole?  Thanks for checking, but not having more than one block lying around, I can't compare one to another.  I think I'll get hold of POP to maybe clear this up.
Yes 7/16 + is passenger
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: wsu0702 on March 21, 2020, 12:34:57 PM
I just took my D4TE block down to the machine shop last Saturday, and just before leaving I did a quick and dirty measurement of the distributor hole using drill bits to check the ID.  Seemed to me it was an easy fit for a 7/16” shaft. Can anyone tell me if that’s the large or small hole? My rebuilder block didn’t come with a distributor.

I made this a while back when this question was coming up frequently on my FB FE group.
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: Riderjeff on March 21, 2020, 01:21:42 PM
Interesting, as there's no doubt of the D4TE casting.  The date code is a little muddled, pretty sure it's January '76.  So, looks like a passenger-type dizzy.
So easy to get misinformation, I emailed Precision Oil Pumps who makes a repop bushing.  They assured me that it's a truck block and I'd need the bushing. 
Thanks for all the help, everyone!
Title: Re: D4TE 105 blocks. Distributor bushing?
Post by: wsu0702 on March 21, 2020, 03:19:05 PM
Interesting, as there's no doubt of the D4TE casting.  The date code is a little muddled, pretty sure it's January '76.  So, looks like a passenger-type dizzy.
So easy to get misinformation, I emailed Precision Oil Pumps who makes a repop bushing.  They assured me that it's a truck block and I'd need the bushing. 
Thanks for all the help, everyone!

I think you are confusing the car vs truck aspect of this when you say "passenger" block.  D4TE blocks where mostly (95+%) used in light trucks (F150-F350s).  These engines all used the regular FE distributor and therefore have the smaller hole.  The only engines that used a different distributor with the larger shaft (bigger holes) were the medium and heavy duty truck (and some U-haul light truck) FT engines.