Anti-dive plunger bolts


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dtrider
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Anti-dive plunger bolts

Post by dtrider »



I did a front shock rebuild over the weekend, and in the process of disassembly I discovered that the bolts holding the anti-dive valve plunger were seized. I managed to get them loose, but in the process I rounded off the corners of one of them. I'll want to replace both of them, but do I need to order the OEM screws (probably 2 weeks out) or would there be any concerns with just picking up some appropriate Grade 5 screws from the local hardware supplier?
/dwight


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Re: Anti-dive plunger bolts

Post by MikeB »

Any good quality socket head bolt will work. I used stainless steel socket head bolts bought from my local Ace Hardware.
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Re: Anti-dive plunger bolts

Post by Rambozo »

No such thing as grade 5 metric. :P
8.8 instead.
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dtrider
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Re: Anti-dive plunger bolts

Post by dtrider »

Rambozo wrote: Wed Jul 27, 2022 12:56 pm No such thing as grade 5 metric. :P
8.8 instead.
The nice thing about standards is that there are so many to choose from.
And I hate it when I mix up my standards.

/dwight
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Re: Anti-dive plunger bolts

Post by tamathumper »

If you use stainless, I recommend adding an anti-corrosion paste, as stainless and aluminum (I think they're set into aluminum?) will corrode together readily. You may want to look up the torque values for wet threads.
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Re: Anti-dive plunger bolts

Post by GoldWingrGreg »

dtrider wrote: Wed Jul 27, 2022 11:20 am I did a front shock rebuild over the weekend, and in the process of disassembly I discovered that the bolts holding the anti-dive valve plunger were seized. I managed to get them loose, but in the process I rounded off the corners of one of them. I'll want to replace both of them, but do I need to order the OEM screws (probably 2 weeks out) or would there be any concerns with just picking up some appropriate Grade 5 screws from the local hardware supplier?
/dwight
Although you had problems removing yours, in general, Honda does an amazing job matching metals to keep that from happening. I highly recommend that you wait for OEM bolts.

As an FYI ... be sure to check the torque. I beleive it is less the 3-ft/lbs
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dtrider
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Re: Anti-dive plunger bolts

Post by dtrider »

GoldWingrGreg wrote: Thu Jul 28, 2022 7:16 am Although you had problems removing yours, in general, Honda does an amazing job matching metals to keep that from happening. I highly recommend that you wait for OEM bolts.

As an FYI ... be sure to check the torque. I beleive it is less the 3-ft/lbs
Thanks. That's what I was looking for. The screws will cost me about $9 for the pair (seems expensive for screws), but having the piece of mind that I'll still be able to get them off next time is probably worth it.

And you are right. The torque spec in the book for those screws is only 2.9 ft/lbs. That's why I'm pretty sure that they were over-torqued by the shop monkey when I had it in at the dealer ~30K miles back for a leaking seal.

/dwight
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Re: Anti-dive plunger bolts

Post by Terry D »

I would get your bolts from the Hardware store. Maybe $2 in cost. Also order the OEM bolts and then swap them out.
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Re: Anti-dive plunger bolts

Post by MikeB »

If you are concerned about putting stainless steel in contact with aluminum, any cadmium plated or carbon steel bolts available from a local hardware supplier will work just fine.


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1998 - GL1500 w/195,500 miles ~ 2017 - GL1800 w/32,000 miles
USAF Avionics Communications Tech - 1968 - 1986 / Flight Engineer C-130E - C-141B - 1986 - 1992. Retired
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