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11-07-2021, 09:53 AM | #1 |
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Does the oil pump bolt have to be safety wired?
I just put the pump in with original bolt/ new lock washer. Then I got to thinking about all the ones I’ve seen with a a hole for the wire. This one does not have it, but I torqued it down to specs.
Should I be worried? |
11-07-2021, 10:10 AM | #2 |
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Re: Does the oil pump bolt have to be safety wired?
I'd find a bolt with a hole in the head or drill one in the head of your present bolt. Generally speaking there is a good reason why they were safety-wired in the first place, at least on all of the early ones.
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11-07-2021, 10:50 AM | #3 |
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Re: Does the oil pump bolt have to be safety wired?
Why take the chance that if that bolt comes loose, and falls into the oil pan, it has the potential to tear up something in that lower end that can/will ruin the engine.
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11-07-2021, 11:06 AM | #4 |
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Re: Does the oil pump bolt have to be safety wired?
Except for race cars and airplanes, does anyone safety wire bolts if they also use lock washers? Car manufactures find that properly torqued bolts with lock washers exceed the 100,000 mile warranties so are unnecessary. Once the bean counters took over at Ford after the war, safety wiring disappeared in the new models. Should you be worried? Not unless you need redundancy to be care free.
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11-07-2021, 11:51 AM | #5 |
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Re: Does the oil pump bolt have to be safety wired?
Pumps to '48 used a drilled head bolt.
'49-'53 manual shows bolt and lock washer only. It's like wearing a belt and suspenders. For peace of mind you can wear the suspenders (safety wire)
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11-07-2021, 12:21 PM | #6 |
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Re: Does the oil pump bolt have to be safety wired?
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11-07-2021, 12:27 PM | #7 |
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Re: Does the oil pump bolt have to be safety wired?
Ford used safety wire in the times up to and just after WWII. They didn't use the annealed stainless wire like we use in aviation but it worked just the same. They even used a lot more cotter pins in the early years.
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11-07-2021, 12:29 PM | #8 |
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Re: Does the oil pump bolt have to be safety wired?
I use loctite
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11-07-2021, 12:47 PM | #9 |
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Re: Does the oil pump bolt have to be safety wired?
I tried to find my Loctite before putting it in, but I have no idea where it is.
I’m thinking I’m gonna pull it back out and drill a hole through the head. |
11-07-2021, 04:51 PM | #10 |
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Re: Does the oil pump bolt have to be safety wired?
Great idea!! I can't tell you how many broken/non functional lock washers I've found while working on these old Fords in the last 63 years.
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11-07-2021, 05:03 PM | #11 |
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Re: Does the oil pump bolt have to be safety wired?
Lock washers are single use items. Not to be reused. Ask the airplane guys.
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11-07-2021, 07:19 PM | #12 |
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Re: Does the oil pump bolt have to be safety wired?
During the depression everybody reused things that looked ok. I agree they are one use items. I use LockTite and washers for looks.
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11-07-2021, 07:24 PM | #13 |
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Re: Does the oil pump bolt have to be safety wired?
During the depression everybody reused things that looked ok. I agree they are one use items. I use LockTite and washers for looks.
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11-07-2021, 07:42 PM | #14 |
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Re: Does the oil pump bolt have to be safety wired?
The problem with using Loctite in that application is the necessity for the threads in the block (and obviously on the bolt) to be dry and completely free of oil. Oil is an ingredient of the assembly process for a rebuilt engine and the odds of some ending up in that hole in the block are not zero.
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11-07-2021, 08:01 PM | #15 | |
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Re: Does the oil pump bolt have to be safety wired?
Quote:
Last edited by J Franklin; 11-08-2021 at 12:44 AM. |
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11-07-2021, 08:10 PM | #16 |
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Re: Does the oil pump bolt have to be safety wired?
On the engines I build I use the safety wire no matter what year flathead it is.
Ronnieroadster
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I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
11-08-2021, 10:01 AM | #17 |
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Re: Does the oil pump bolt have to be safety wired?
Good advice in general Ronnie, and especially good advice for anyone attempting a record run at Bonneville @ 200+ mph. What was your approximate engine rpm @ 205.744 mph?
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11-08-2021, 10:09 AM | #18 |
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Re: Does the oil pump bolt have to be safety wired?
What is the proper way to safety wire the bolts holding the differential carrier together? The safety wire that I cut off to replace an axle was tightly twisted double wire by some tool that I do not have. So far I have just run a single galvanized steel wire around through all of the bolt heads, and twisted the ends together. With that, no bolt can make more than an eighth of a turn. Good enough?
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11-08-2021, 10:14 AM | #19 |
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Re: Does the oil pump bolt have to be safety wired?
Most of the broken, non functional lock washers I mention in post #10 were on original cars being dismantled for the first time. Probably the only thing that kept that hardware together was rusty threads.
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11-08-2021, 11:32 AM | #20 | |
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Safety wire
Quote:
I did a LOT of safety wiring in the .mil and only rarely used them. Like modern cars there is oftentimes very, very little room to work in and unfortunately the pliers were absolutely useless most of the time. Safety wiring does take practice, but the pliers are not critical to the task. The idea is that the bolt or fastener will not loosen, (or wire installed in the loosening direction!) no nicks or excessive work hardening of the wire, and no sharp edges to cut or catch "pigtail" etc. There are even accepted practices for installing the lowly cotter pin. Search "safety wire techniques" for some instruction. |
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