[Trevor78]

Does anyone recall which years used these retainers to keep harness away from exhaust? A used 400 harness of mine had the long oil pressure sender wire and the HEI wire using them. Where did they mount? Looks to be the typical 5/16" style. I can't find anything on the harness routing or the retainers of this type. I've found similar references to #496112 retainer, but for A/C case and transmission bellhousing areas.

400 Firebird engine harness retainers oil sender by Ben, on Flickr

Pontiac 400 oil pressure sender harness retainers by Ben, on Flickr

[Trevor78]

Good chat.

[mzbk2l]

Sometimes I think having some kind of reaction button would help posters in topics like this... I saw your post and was interested in replies, but I don't have any knowledge to add to the topic. Given how active this forum is, I'd think if anybody could verify they would reply.

[Trevor78]

Haha that was just me giving the thread a free bump. On Facebook it would have a hundred replies and 200 different opinions.

So now I don't know if these retainers are anything special or just super boring. No one said, yeah seen those on mine, or never seen thing like it. But plenty looked, are they all confused by their own opinion?!

[78w72]

My 2 cents is that on the numerous 2nd gen 74-81 firebirds ive owned/stripped, i have never seen those clips holding those wires off the exhaust areas, dont think Ive ever noticed them in GM service manuals either but thats just a guess. Ive had close to 50 of these cars, stripped most to bare shells, restored a few with lower miles and have seen up close a couple very low mile original survivors, one with 5K original miles. Have never noticed those clips on those wires.

In fact on the cars I own now, the tach wire & oil sender wire lengths are made just long enough to reach their intended points with not enough slack to touch the exhaust or need retainers to hold them up.... FWIW.

Many times people added (or removed) items from these cars over the years for whatever reason, maybe these were added by someone or were removed so often that nobody recalls seeing them?

[Keith Seymore]

I've not seen a clip exactly like that before, but if authenticity is not a concern you could use the regular fuel line/brake line clips to duplicate those.

K

['ol Pinion head]

Trevor, can you measure the length of the clip & the hole size? Have drawer after drawer of original harness clips as well as nos clips ordered many ters ago, most are slotted for their use.

[Trevor78]

Thanks guys, I'm not after any, I already have these which are spare. They were just part of a used harness I had and I hadn't seen them on anything else or in photos, as mentioned.

Having said that, where does the oil pressure sender wire route on a Pontiac engine, I have several diagrams and photos but never seem to show the rest. I'm curious to see where this was run. Similar engines could mount them off the engine mounts or heads with this type, the shared wire with HEI, if that even belonged there, makes it even more difficult.

[Held for Ransom]

I would say clip number 478007 off the bellhousing bolt, but I don't have any pictures to confirm.

[Trevor78]

Perfect, certainly appear to be #478007 retainers.

They feature in the Parts Manuals but also some of the early Assembly Manuals. I did look previously and missed them.

But also located in HFR's previous posts from 10 years ago, other pics below from Bulletpruf, Loffen, and others. Much appreciated. There's several threads, the photos don't come up in all without searching older links of it. For anyone wanting to see thread:

https://forums.maxperformanceinc.com...ghlight=478007

Here's a few of their pics to show retainer.

https://i1126.photobucket.com/albums...e/183d8259.jpg

https://i1126.photobucket.com/albums...e/92e0ca68.jpg

https://i1126.photobucket.com/albums...e/IMGP3030.jpg

https://i1126.photobucket.com/albums...e/IMGP3031.jpg

https://forums.maxperformanceinc.com...8&d=1360702069

[Trevor78]

1976 Firebird Assembly 400 Pontiac 478007 harness retainers bellhousing (1) by Ben, on Flickr

1976 Firebird Assembly 400 Pontiac 478007 harness retainers bellhousing (2) by Ben, on Flickr

1976 Firebird Assembly 400 Pontiac 478007 harness retainers bellhousing (3) by Ben, on Flickr

[78w72]

Good to see diagrams & pics showing these clips, pretty sure i have some in my boxes of bolts, just never noticed them installed still on the cars ive stripped... but 40+ year old cars, especially in the condition you find many parts cars in the midwest have had so many original things removed or modified somehow.

[nUcLeArEnVoY]

I surprisingly had those clips on my '79, which doesn't even have a numbers-matching engine. The block is an XA block; the original PWH is long gone.

The clips were just hanging off the oil pressure and distributor coil wires. They're bolted to the top two bolts of the bell housing.

The two clips that hold the starter cable on either side of the driver motor mount are almost impossible to find on most cars originally, luckily they're repro'd.