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11-06-2019, 02:26 PM | #1 |
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torquing 8ba heads with an oil filter
I am reassembling the heads on an 8ba v8 engine. The original oil filter is in place. Does anyone have a suggestion on how to torque the heads bolts which hold the filter is in place? Thanks for any help you may provide.
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11-06-2019, 03:11 PM | #2 |
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Re: torquing 8ba heads with an oil filter
8BA oil filters are attached two ways. '49's use the actual head bolts themselves, while the later models have bosses cast into the heads and the filter housing bolts on them with smaller bolts. It sounds like you have the earlier type, is this correct?
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11-06-2019, 03:12 PM | #3 |
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Re: torquing 8ba heads with an oil filter
Like tubman intimated, if you have the filter canister that is bolted to the head with 3 head bolts, you install the oil canister in place using hardened flat washers with the head bolts and torque to specs.
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11-06-2019, 03:50 PM | #4 |
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Re: torquing 8ba heads with an oil filter
Yes, the filter that I have is held in place with 3 of the long actual head bolts. The question I have, is how you get a torque wrench in place to do the actual torquing.
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11-06-2019, 03:58 PM | #5 |
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Re: torquing 8ba heads with an oil filter
I've never had an early engine, so I can't be of much help. However, I have heard the a "crow's foot" wrench on an extension might get around the obstacles. If you can, turn it to 90 degrees from the axis of the torque wrench to minimize the effects of leverage.
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11-06-2019, 05:51 PM | #6 |
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Re: torquing 8ba heads with an oil filter
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11-06-2019, 05:52 PM | #7 |
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Re: torquing 8ba heads with an oil filter
If you used a short universal joint with an extension on your torque wrench you can tighten the head bolts very close to the torque specifications without any problems. The photo below shows the adaptation of the 3/8 inch bolt canister to the wider head bolt configuration. There is enough room for the torque wrench using a universal joint and an extension.
Last edited by 19Fordy; 11-06-2019 at 06:01 PM. |
11-06-2019, 06:15 PM | #8 |
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Re: torquing 8ba heads with an oil filter
I did try using an extension,universal joint and a crows foot. I only did the first tightening sequence. I'll check online for any needed torque adjustment. Thank you all for your help.
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11-06-2019, 06:20 PM | #9 |
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Re: torquing 8ba heads with an oil filter
Go grab an extension out of your tool drawer and spend five minutes massaging the square end on your grinder. Works way better than a universal. You'll end-up using this extension mucho-alot in the future. This ain't no trick for a show dog. Sorry about the gi-hugic picture. DD
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11-06-2019, 06:34 PM | #10 |
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Re: torquing 8ba heads with an oil filter
I just went out to the garage and found that I can fit a torque wrench to those oil canister head bolts by using a short 3/8 socket and 3/8 inch extension with 3/8 adapters on a 1/2 in. drive torque wrench. Also, using a short 1/2 in. drive socket on the head bolt with my 1/2 in. drive torque wrench will also work. As a last resort you could cut a longer head bolt socket shorter if you have a lathe. If not, grind it shorter as needed. 1st photo shows 1/2 in socket directly on torque wrench. 2nd photo shows 1/2 in drive torque wrench using 3/8 in. reducer and extension. There is still enough room to move the toque wrench handle.
However, i like V8's swivel extension idea a lot Last edited by 19Fordy; 11-06-2019 at 06:40 PM. |
11-06-2019, 08:35 PM | #11 |
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Re: torquing 8ba heads with an oil filter
Here are some torque wrench calculations if anyone is interested. The values change when a swivel is used and is not 90 degs to the wrench (+/- 15 deg). The chart is not easy to read, but will maybe give you the idea.
Last edited by JSeery; 11-06-2019 at 08:48 PM. |
11-06-2019, 08:46 PM | #12 |
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Re: torquing 8ba heads with an oil filter
Mr. Seery. Thanks for that. I Googled Angle Torque Wrench and lots of neat stuff appears.
https://www.google.com/search?q=angl...hrome&ie=UTF-8 |
11-07-2019, 11:45 AM | #13 |
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Re: torquing 8ba heads with an oil filter
Hey guys, thank you for your help. The oil filter canister that I have seems to more closely surround the head bolts. Nevertheless, I will try all of the suggestions and report back with results. Also unfortunately, since my move I no longer have my mill, lathes and welders. Just like being back in high school "making due".
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11-07-2019, 11:53 AM | #14 |
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Re: torquing 8ba heads with an oil filter
Those torque charts are great. Thanks.
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11-07-2019, 12:27 PM | #15 |
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Re: torquing 8ba heads with an oil filter
That's "making do". Fell victim to correct a text
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11-07-2019, 01:05 PM | #16 | |
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Re: torquing 8ba heads with an oil filter
Quote:
Those are called wobble extensions. Google will find many price ranges. I have some no-name from many years ago that have served me well. |
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11-07-2019, 02:18 PM | #17 |
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Re: torquing 8ba heads with an oil filter
Love them things, use them a lot.
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11-08-2019, 10:35 AM | #18 |
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Re: torquing 8ba heads with an oil filter
I saved a lot of trouble, I cut the brt. off iwith a saws all and junked the worthless filter.
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11-08-2019, 11:03 AM | #19 |
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Re: torquing 8ba heads with an oil filter
Cannot think of the name for them but there is a box end tool on the order of a crow foot with a tall C shaped body and square drive end on the top of the C. Will reach under rocker arms and shafts. No need to alter torque reading, but I guess it's a OHV thing.
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11-08-2019, 11:21 AM | #20 |
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Re: torquing 8ba heads with an oil filter
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11-08-2019, 12:02 PM | #21 |
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Re: torquing 8ba heads with an oil filter
I have one of the "C" shaped tools that was actually from Nissan which I used to install the oil sender unit on the installed 8BA engine in my "51. The top fit the drive on a ratchet and the bottom fit the square section under the oil sender. It was very useful.
On the oil filter, I do sort of wish that I hadn't decided to use it, but...! I'm hoping that this Snap On tool will solve my issue. Well, that and a bit of the necessary math. |
11-09-2019, 02:18 PM | #22 |
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Re: torquing 8ba heads with an oil filter
This and a bit of math as needed and the issue is solved. Just wanted to provide follow-up. Thanks everyone.
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11-09-2019, 05:39 PM | #23 |
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Re: torquing 8ba heads with an oil filter
Part #: 32-23817-1 at Macs Auto Parts. Is a pic of what I was thinking or something similar. Used them on FE engines to retorque head bolts without removing rocker arm shafts.
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11-11-2019, 11:53 AM | #24 | |
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Re: torquing 8ba heads with an oil filter
Quote:
I see this car does not have 8BA heads and thermostat housing are in the middle of head. That might be a problem getting the blade down low on the brt.? After cutting it off I filed the edge with a file and then painted the edge to keep it from rusting. The brt. cut much better than expected. Remove a couple of plugs also. Cover the holes. |
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11-11-2019, 02:30 PM | #25 | |
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Re: torquing 8ba heads with an oil filter
Quote:
It looks to me like if you use that wrench in the configuration shown in the third image down, in the right hand column in JSeery's chart, there should be NO math involved. DD |
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11-12-2019, 06:32 PM | #26 |
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Re: torquing 8ba heads with an oil filter
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11-12-2019, 07:49 PM | #27 |
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Re: torquing 8ba heads with an oil filter
>>>Does anyone have a suggestion on how to torque the heads bolts which hold the filter is in place?>>>
I think it's more important to torque in proper sequence than worrying too much about ft-lbs applied. Preferrably use a torque wrench where possible. About 45-50 ft lbs on iron heads. Maybe as much a 40 on aluminum. But use your own feel or judgment for torque applied with any kind of wrench that'll reach where the torque wrench can't. Torque isn't an exact science. Depends on thread count, lubed/dry lubed, etc. Just don't over do it. Jack E/NJ |
11-13-2019, 11:48 AM | #28 | |
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Re: torquing 8ba heads with an oil filter
Quote:
Within reason, and depending on how much "wrenching" experience one has, I pretty-much agree with what Jack is saying here. Hell, I can watch a guy (and gals, too) twisting on a wrench and get a pretty good "feel" for how tight the fastener is. DD |
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11-13-2019, 05:47 PM | #29 |
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Re: torquing 8ba heads with an oil filter
51 Merc cast iron head torque is 65-70 foot pounds.
https://www.fordbarn.com/forum/showthread.php?t=67567 |
11-13-2019, 08:54 PM | #30 |
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Re: torquing 8ba heads with an oil filter
I think over the years a lot of builders have determined that lower headbolt/stud torque values work and there is less distortion to the thin flathead blocks upper surfaces.
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