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66-96 Ford Broncos - Early & Full Size
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diymirage

upper radiator hose

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hey guys 

i want to order a new radiator hose for the bronco (87-351) because whoever owned it before me, put on an accordion hose, and it is junk 

 

the hose i need is a simple Z shaped hose, from the radiator out 10 inches or so to get passed the fan, over towards the drivers side and another 90 to hit the water neck 

the number autozone gives me is 71283 which looks like an omega sign and does not get passed the radiator out far enough to clear the fan 

 

anyone have any idea what the right number hose is? 

 

(ill toss up a picture later) 

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Yo,

What engine?

Please fill in your profile.

 

For 5.0 see images at https://www.rockauto.com/en/catalog/ford,1987,bronco,5.0l+302cid+v8,1105883,cooling+system,radiator+upper+hose,2058

For 5.8 https://www.rockauto.com/en/catalog/ford,1987,bronco,5.8l+351cid+v8,1105894,cooling+system,radiator+upper+hose,2058

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Part Catalogbreadcrumbsep.pngFORDbreadcrumbsep.png1987breadcrumbsep.pngBRONCObreadcrumbsep.png5.8L 351cid V8breadcrumbsep.pngCooling Systembreadcrumbsep.pngRadiator Upper Hose
 
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Molded Coolant Hose
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Curved; Type Dual / Small ID 1.50" / Large ID 1.75" / Span 19.50"
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Posted (edited)

thank Mieks, 

the engine is a 351 

best i can tell, it came out of a 85, but the chassis is an 87 

 

the hoses that show in your post look like the one in bought ( and the number on the dayco is the same) 

no way that fits 

 

i like the looks of the gates 21631 

it shows for a 5.0 but my truck is so cobbled together who know what it should be 

 

come to think of it, it looks like my waterneck comes out horizontal...if the silly thing would be vertical the hose i have would fit 

does this sound like i just have the wrong waterneck ?

 

 

Edited by diymirage

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on a hunch i stopped by autozone last night and picked up a new water neck ($ 7.95) and sure enough...it is different 

im hoping that once i swap that out, the hose will line up as it should 

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Looks like I got this figured out 

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Yo,

Good job!

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On 5/11/2018 at 12:35 PM, miesk5 said:

Yo,

Good job!

Not quite, the Water neck is leaking 

Not pouring, about a drip every 2 seconds at idle 

I guess I'll tear it apart tomorrow and only use rtv instead of a papergasket with a thin coat of rtv like I did this time 

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I just had that issue with a paper gasket I try'd to install recently. It act'd like it melted. Got mine form O'reilly. Blue RTV and no more issues.

 

 

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thanks SKitter, 

i went throught all the steps to get it right 

blocked the neck and the intake side to make sure nothing was warped 

mocked it up without washers to make sure the bolts werent bottoming out 

lines up the gasket with the intake, then filpped it over and lined it up with the waterneck to find out the bypass hose nipple was off by a bit, enough to leave hardly any meat for the gasket to seal on 

 

switched it our for a carquest version and everything seemed good for a few days 

went for a little ride yesterday, and found more water on top of the timing cover 

i will double check everything is tight, but it if is, im putting on a water neck with O rings 

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One issue I had the the thermostat trying to fall out of the groove when I attached the water neck back on. I used a small dot of RTV to hold the T-stat in place and had no issues.

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Yup, did that too 

Still leaking, so I bought an o ring water neck 

Should be here by Friday 

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Ya know, I didn't have a coolant leak till I join'd in on this conversation. 🤣 Thankfully mine is just a bad 5/8 hose going from the intake to the water pump. Stop by O'reilly tomorrow and get a new one.

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So what your saying is...i started a trend? 

I think that 5/8 hose actually has 2 different I D s, so keep an eye on it 

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99Yo Skitter,

The bypass hose is available by Dayco;

 RADIATOR Bypass HOSE

PART NUMBER: 70646

Back to results
70646
ATTRIBUTES SPECIFICATIONS
Type Dual I.D. Hose
Small ID (Frac) A 5/8
Small ID (Dec) A 0.63
Large ID (Frac) B 3/4
Large ID (Dec) B 0.75
Hose Length 5 1/2
Branch 0
 

More DAYCO parts http://www.daycoproducts.com

 

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