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Timing Chain Cover Dipstick on 302ci


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#1 76 MS. bronco

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Posted 09 April 2009 - 12:31 PM

I'm wondering how/why there is a dipstick tube on the timing chain cover of my 302 in a 76 Bronco. there is a dipstick in the oil pan. which one should i plug and how do i do this?

Thank you!!!

#2 Broncobill78

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Posted 09 April 2009 - 12:51 PM

Pre 1980's 302's had the dipstick in the timing chain cover. At some point that engine was swapped in from something else and the swap required a new oil pan & the new pan was setup for a dipstick. The original dipstick location (timing chain cover) was intended to be used with the original pan, since the original pan has been replaced I'd plug the timing cover hole & use the pan mounted dipstick. The way I'm reading your post the actual dipstick is in the pan but you're wondering why there's a dipstick tube (with no dipstick) in the timing chain cover, correct ?
Dave

People who say it can't be done should not interrupt the person doing it.

84 Mustang GT (Great car to lose your license with, I recommend it for those trying to do so)
74 Ranchero (429, c6, Currie enterprises 9" w/Mickey Thompson cheater slicks, 1970 Torino shaker hood scoop)
82 Bronco (Canadian truck, kilometer speedo, dual batteries, hi-output heater, dual factory block heaters/etc)
78 Bronco (400, 33" Fun Countries, fastback softtop)
79 Bronco (460, 36" Ground Hawgs, frame-off rebuild)
84 Bronco (bone-stock beater)
73 Bronco (I only had it 2 wks before flipping & crushing it.)
76 F-350 (390, 40" Super Swampers, ugly ugly ugly fire-engine green/yellow cab w/faded purple bed)
78 Bronco (460, 38.5" Ground Hawgs, Dana 60's, boxed frame, frame-off rebuild)
86 Bronco (only truck I've ever had fall thru the ice & just plain disappear. no end of hassles from the ins. co.)
91 Bronco (25th anniversary edition, red w/grey leather everything interior, 31x11.5's)
88 Bronco (33x12.5's)
79 Bronco (Current project, 4" lift w/weenie little pizza cutters)

Looking for 78/79 parts, please let me know if you have one you're parting out.

#3 Bronc76

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Posted 09 April 2009 - 01:57 PM

Bill- I'm not disputing what youre saying about location of tube, but my 76 tube is in the pan. (original owners, so i know it has original motor and tranny). my question is could it be possible that the dipstick tube could have been in different locations even same era? maybe different for passenger cars and trucks?

#4 Broncobill78

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Posted 09 April 2009 - 04:12 PM

Yup, sure could be. There are also variations in location from passenger cars to trucks. I don't have the exact years & applications handy :) I know the earlier car 302's used the timing cover. Now I suppose it's equally possible that somewhere along the line the original engine was rebuilt & the timing cover that was handy just happen to have the dipstick tube in it but it just seemed more likely that someone swapped in a car engine which originally used the timing cover location and going from car to Bronco required the truck oil pan which uses the oil pan for the dipstick.
Dave

People who say it can't be done should not interrupt the person doing it.

84 Mustang GT (Great car to lose your license with, I recommend it for those trying to do so)
74 Ranchero (429, c6, Currie enterprises 9" w/Mickey Thompson cheater slicks, 1970 Torino shaker hood scoop)
82 Bronco (Canadian truck, kilometer speedo, dual batteries, hi-output heater, dual factory block heaters/etc)
78 Bronco (400, 33" Fun Countries, fastback softtop)
79 Bronco (460, 36" Ground Hawgs, frame-off rebuild)
84 Bronco (bone-stock beater)
73 Bronco (I only had it 2 wks before flipping & crushing it.)
76 F-350 (390, 40" Super Swampers, ugly ugly ugly fire-engine green/yellow cab w/faded purple bed)
78 Bronco (460, 38.5" Ground Hawgs, Dana 60's, boxed frame, frame-off rebuild)
86 Bronco (only truck I've ever had fall thru the ice & just plain disappear. no end of hassles from the ins. co.)
91 Bronco (25th anniversary edition, red w/grey leather everything interior, 31x11.5's)
88 Bronco (33x12.5's)
79 Bronco (Current project, 4" lift w/weenie little pizza cutters)

Looking for 78/79 parts, please let me know if you have one you're parting out.

#5 Bully Bob

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Posted 09 April 2009 - 04:54 PM

Check me.,
but all aft. market t-chain covers come with the dipstick tube/hole in them.
More likely the t-chain cover was replaced for some reason...,
So just plug it., & use the orig. side stick.
"...which one should i plug and how do i do this?"
I've cleaned & sanded a bit to rough it up., then mixed up some "JB weld"., waited 'til it's not so runny., then plugged away.
(don't want it running down inside....)
I'm sure there's a number of ways to plug it.

Edited by Bully Bob, 09 April 2009 - 05:02 PM.

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#6 76 MS. bronco

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Posted 10 April 2009 - 05:19 AM

Thank you guys!!!

That is correct. there is no Dipstick in the Timing Cover Tube. Do i cut this tube off and plug it down low or do i just plug the top of the tube. i'd just like to simplify the area and do away with one of the. The dipstick tube in the Oil Pan is leaking so i was thinking about plugging it. Would i use the same Dipstick or is there a special one for the Timing Cover tube?

Thanks again,

#7 Bully Bob

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Posted 10 April 2009 - 06:25 AM

"....is there a special one for the Timing Cover tube?"
Yes.
"The dipstick tube in the Oil Pan is leaking so i was thinking about plugging it."
NO......Clean the area where the tube meets the pan W/carb spray cleaner or Laq. thinner
(use dremmel & wire wheel if necess.)
Dry well, & apply the black silicone over the whole area.
If you ever remove the pan.., then you can remove that assy. & re-build it.
"Do i cut this tube off and plug it down low or do i just plug the top of the tube..?"
Haven't seen a tube on them..., just a hole down low.
Check to see if that tube pulls out....if not....your choice as to the plugging.
Another way is to butter up a short bolt with JB Weld & slip it down the hole.
---Jeep recovery unit---
1966 "U-13" Roadster...topless, doorless. (with rag top-n-doors)
200 cu.in. I-6 with 250 head.
$30 homemade HEI elect. ignition.
Pwr. steering, Hurst 3-speed floor shifter.
Split headers, dual exhaust, Holley 1 brl.
Stock axles...456's...32's ...Posi rear. 2.5 in. lift.
Full roll-cage, front.
65 gallons of fuel on board..!
70+ MPH cruise---15 MPG
6 EB's (& 11 early Land Cruisers) referbished & sold..

#8 Broncobill78

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Posted 10 April 2009 - 08:44 PM

I ran into this the last time I swapped a 460 into a 78. I used a Lincoln 460 that had a timing cover mounted dipstick tube but the oil pan that came with my kit had a dipstick of it's own. The timing cover had a tube that extended about 5". I took the easy route and just stuck vacuum plug over the tube & secured it with a hose clamp. How anyone else deals with it is a matter of personal preference :)
Dave

People who say it can't be done should not interrupt the person doing it.

84 Mustang GT (Great car to lose your license with, I recommend it for those trying to do so)
74 Ranchero (429, c6, Currie enterprises 9" w/Mickey Thompson cheater slicks, 1970 Torino shaker hood scoop)
82 Bronco (Canadian truck, kilometer speedo, dual batteries, hi-output heater, dual factory block heaters/etc)
78 Bronco (400, 33" Fun Countries, fastback softtop)
79 Bronco (460, 36" Ground Hawgs, frame-off rebuild)
84 Bronco (bone-stock beater)
73 Bronco (I only had it 2 wks before flipping & crushing it.)
76 F-350 (390, 40" Super Swampers, ugly ugly ugly fire-engine green/yellow cab w/faded purple bed)
78 Bronco (460, 38.5" Ground Hawgs, Dana 60's, boxed frame, frame-off rebuild)
86 Bronco (only truck I've ever had fall thru the ice & just plain disappear. no end of hassles from the ins. co.)
91 Bronco (25th anniversary edition, red w/grey leather everything interior, 31x11.5's)
88 Bronco (33x12.5's)
79 Bronco (Current project, 4" lift w/weenie little pizza cutters)

Looking for 78/79 parts, please let me know if you have one you're parting out.



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