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252 skidozer carb upgrade help

treeeman00

treeeman00

Member
I have a 1979 252 skidozer and it has a 300 straight six in it. Im assuming this is an industrial engine. It has a 1bbl motorcraft carb on it. I am wanting to upgrade the carb. Has anyone put a different carb on their 300? Just wanting to know which one I should go with. I rebuilt my carb and I think it was rebuilt previously and there was a piece missing. It was a pump ball weight. I put it back together and it runs good, just hesitates when I give it gas. The weird thing on this carb is that it didnt have an accelerator pump. The carb is a manual choke also. Is their a difference in the industrial and auto carbs?
 
My bet is this engine had a govenor on it when new...boggie? You here?

It would be a great thing to have while working snow, back in the day. It would let you maintain a steady RPM and not worry about touching the throttle. No neeed for an accelerator pump if your using the govener, to control throttle postition.

Were it mine I woud beat a trail to the salvage yard so fast it would make your head spin, and get a tuned port EFI manifold and EEC IV electronics for it. (1998-2006) That manifold is a piece of automotive art that really works if you've seen one/drove one you know this already. It fixed the one engine in Ford's inventory that didn't need fixing, and made it nearly perfect.....:whistling: and it will fit under your stock bonnet I believe..

Regards, Kirk
 
I think your on the right track. This one has an accelerator pump, and that will help with the dead spot. Good luck, great machine...

Regards, Kirk
 
thanks alot. Today was the first time I have heard her run. Shes been sitting about 3-4 years. I picked her up about 4 months ago and havent had the time to do anything with her. Did only some of the skidozers have transfer cases. Mine does not have one. A couple pics of other machines I have seen have had transfer cases.
 
Every one I have been around has a transfere case with the shift lever behind the refular trans shifter. But then again I haven't really seen that many either. Maybe the auto trans models could be had without. All I have been arond are manual trans models.

Regards, Kirk
 
300 H and H said:
My bet is this engine had a govenor on it when new...boggie? You here?

It would be a great thing to have while working snow, back in the day. It would let you maintain a steady RPM and not worry about touching the throttle. No neeed for an accelerator pump if your using the govener, to control throttle postition.

Were it mine I woud beat a trail to the salvage yard so fast it would make your head spin, and get a tuned port EFI manifold and EEC IV electronics for it. (1998-2006) That manifold is a piece of automotive art that really works if you've seen one/drove one you know this already. It fixed the one engine in Ford's inventory that didn't need fixing, and made it nearly perfect.....:whistling: and it will fit under your stock bonnet I believe..

Regards, Kirk
Click to expand...


What vehicle is the easiest to get this off of to make work great, I would like to do this to mine if I can get into one at a decent price if not then I am toying with finding a 4 cylinder diesel to out in.


Sent from my iPad using Tapatalk HD
 
F 150 pickup trucks...

It's a two piece manifold alloy that runs up and over the valve cover. The long intake runners are for low end torque, what this engine does best. Back in the day the 300 had more torque thatn a 460 did up to 2,500 rpm or so. We have two trucks here with them, a stick and an auto, either would work for you. They can be a bit toughto find inthe salvage yards, as they are popular in my area anyway. BUt well worththe effort.

The manual has had the head machined with a groove across the squish area of the combustion chamber. The grooove starts directly opposite the spark plug and grows sligthly in depth and witdth runninng directly at the spark plug. At TDC, the groove throws a "jet" of air into the chamber at max compression and stirs the mix. It will happily run down the road at 35mph in 5th gear at about 450 RPM now, with out bucking or jerking. Amazing. I read about this in Popular Mechaics years ago...

Regards, Kirk
 
300HandH,
I may take your advice about the manifold for my 252. My carb is old and grungy and causing pops and backfires. Thanks for the tip.
Treeman,
I've got an extra transfer case! It isn't original, and it was for a truck, so it's got a PIA front shaft output which isn't needed. But it's mounted in my cat and I'm likely going to replace it with the proper one (which came with my cat). The P.O. swapped them, thinking the tcase was bad, but it was really a misalligned u-joint in the drive-shaft.
 
Treeman,
No, mine is an automatic, and it has the case from new. But even if it wasn't original, I can't see any reason one couldn't be added.
Where's Boggie when we need him? I'm pretty sure his company is real familiar with 252s. IIRC there was a recent thread about them selling several to someone in AK.

330HandH,
Is this the type of intake you're referring to? http://www.ebay.com/itm/87-96-300-4-9-FORD-UPPER-LOWER-INTAKE-W-INJ-/400293465769?_trksid=p5197.m1992&_trkparms=aid%3D111000%26algo%3DREC.CURRENT%26ao%3D1%26asc%3D14%26meid%3D2970189301349583540%26pid%3D100015%26prg%3D1006%26rk%3D1%26sd%3D400293465769%26
It's not the date range you mentioned. I was looking but didn't see 300-6 options on the '98-'06 F150s. Thanks for any help.
 
Treeman,

I was looking back at your posts, and didn't see a photo of the rear end showing things between the transmission and the differential. On mine, there is a large assembly which spans between the left and right sides. The t-case is mounted below that.

I'll see if I can get some pics, but I might have to email them directly. I've got no camera and have no idea how to post pics. But with a helpful neighbor I can get them to you. Give me some time on this. Otherwise, if you want to post pics of yours, I can describe any differences I see.
 
Is this the type of intake you're referring to? http://www.ebay.com/itm/87-96-300-4-...00293465769%26


87-96...Yup this is THE manifold for the 4.9L or 300 six. It is large in size how ever and takes additional room on the right side and top of the engine to get it into a cat. If I had a machine with this engine, I would be making plans to upgrade for one of these. I think they are that good. Ford went to a good bit of work on this piece.

You will need all the vacume lines and their routing as well as sensors as they are not good on the unit you linked to. I have never converted one myself, but I don't think it would be a big deal for someone who is familiar with the fuel injected version of this engine.

Regards, Kirk
 
GROAN! My neighbor just scrapped one, not but 2 months ago. With wiring etc. I guess I'll be looking. Thanks much for the input.
 
Treeman,
The parts manual lists 2 different 2-speed t-cases for the 252. I saw nothing to indicate that some cats had none.
 
treeeman00 said:
Undy, so do you know if only the manuals came with a transfer case? Mine is an auto and has no transfer case.
Click to expand...

Here I am, some had them some did not. We have had them both ways on manuals and autos. Most of the time people forgot to check the fluids in them and when they went out just never put them back in and changed the drive line.
 
thanks guys for all the info. Thanks boggie. So I take it the autos do ok without a transfer case. Im sure it depends wether your climbing hills or not. Sorry again Boggie I decided to not sell the skidozer.
 
Do you have a photo bucket account? You must move pics to some thing like that to post them on websites. At least that is how I do it anyway...

Regards, Kirk
 
I could not post pics on a site I visit frequently so after tearing the hair outta my head, someone told me to email them a couple pics. They said I had to re size them. They sent step by step directions on how to do it & all is OK now.
 
im not sure how big they are. I took them with a digital camera. I will try reducing the size if that dont work ill post of photobucket
 
pics
 

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