Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

97 Civic transmission mount - Need size of three bolts

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Old Jan 31, 2013 | 08:28 AM
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Default 97 Civic transmission mount - Need size of three bolts

1997 LX Sedan

Does anyone happen to know the size/pitch of the 3 bolts that go into the top of the trans mount? The mount that is on top and can be seen by looking down and to the left of the lower rad hose. I just picked this car up 3 days ago and while going over it yesterday i noticed its missing all of the bolts for the mount, like they forgot to put them back in...i dont know how that could forget the vibration is pretty bad. But anyways, if someone could get me that info i'd appreciate it. Thanks.
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Old Jan 31, 2013 | 08:42 AM
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Default Re: Need bolt size

Here:
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Old Jan 31, 2013 | 08:46 AM
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Default Re: Need bolt size

Originally Posted by RonJ@HT
Here:
I swear ron is a human manual xD
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Old Jan 31, 2013 | 08:53 AM
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Default Re: Need bolt size

Originally Posted by PerfectionIsKey
I swear ron is a human manual xD
Hey, got a basic or even rare question about our cars? First stop should be the car bible (=service manual). So often overlooked.
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Old Jan 31, 2013 | 08:58 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Where are you getting all these pics online though?
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Old Jan 31, 2013 | 08:59 AM
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Default Re: Need bolt size

Originally Posted by PerfectionIsKey
I swear ron is a human manual xD
He really is, hes helped me out 2 times already and was so quick to answer it was almost scary.


Thanks again Ron
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Old Jan 31, 2013 | 09:02 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Originally Posted by doctorake
Where are you getting all these pics online though?
Although posting links here is strictly against site rules, suffice it to say that, a Google search would probably reveal PDF versions of service manuals.
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Old Jan 31, 2013 | 09:03 AM
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Default Re: Need bolt size

Originally Posted by khube2

Thanks again Ron
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Old Jan 31, 2013 | 09:06 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Originally Posted by RonJ@HT
Although posting links here is strictly against site rules, suffice it to say that, a Google search would probably reveal PDF versions of service manuals.
I know there is a fine line while talking about this. I have a Hanes manual for my civic, what type of manual do you prefer?
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Old Jan 31, 2013 | 09:07 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

And you can get the exact length from on online catalog from an online OEM Honda Parts dealer. I have found it difficult to find automotive grade strength (I forget all the ratings, but you need to be safe here, don't skimp) bolts at my local hardware store in the metric sizes, so I just buy them online from Honda.
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Old Jan 31, 2013 | 09:09 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Originally Posted by doctorake
I have a Hanes manual for my civic, what type of manual do you prefer?
Without a doubt, you want to get the Helms/official Honda factory service manual for your car. In my experience, the Haynes manual is less than a poor substitute.
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Old Jan 31, 2013 | 09:13 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Originally Posted by RonJ@HT
Without a doubt, you want to get the Helms/official Honda factory service manual for your car. In my experience, the Haynes manual is less than a poor substitute.
Interesting, the haynes has been sufficient for me so far.
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Old Jan 31, 2013 | 09:15 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Originally Posted by doctorake
Interesting, the haynes has been sufficient for me so far.
Try side by side comparing them when you have the opportunity.
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Old Jan 31, 2013 | 11:28 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Then there's Chilton, which seems to borrow pics from the Helms. So, it's like an abbreviated version. I sometimes use it if I have done the same process multiple times, and I make notes in it. But for many many things, nothing beats the Helms. Especially diagrams.
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Old Jul 24, 2014 | 06:11 PM
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Default Re: 97 Civic transmission mount - Need size of three bolts

i know old thread, and hopefully someone see's this reply before trying to reply to the OP. Anywho, the studs that go into the trans, the metrics(thread pitch/diameter/length) for the studs is not in the manual. Anyone know the size of the studs off hand???

there was this noise coming from the right hand/front side of the car intermittently.. went through everything. then i was like wait.. there is something missing here. oh. yeah. BOTH of those studs...(not my doing, twas previous owner)
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Old Jul 24, 2014 | 06:27 PM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Just order them from the dealership. They only go down a certain depth.
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Old Jul 24, 2014 | 07:59 PM
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Default Re: 97 Civic transmission mount - Need size of three bolts

yeah i know it, that might be the only option aside from a caliper and then whatever fine thread pitch would match(or wait! i have a friend with an amazing tap/die set and those neat thread finder deals).

guess i'll check on price, but i live in a pretty industrial city, there are a few places where one can find any nut/bolt in any spec(say 8.8) for a penny.(kinda have a hunch honda wants a mint for it, we'll see)
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Old Jul 24, 2014 | 09:35 PM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Originally Posted by Swansen
yeah i know it, that might be the only option aside from a caliper and then whatever fine thread pitch would match(or wait! i have a friend with an amazing tap/die set and those neat thread finder deals).

guess i'll check on price, but i live in a pretty industrial city, there are a few places where one can find any nut/bolt in any spec(say 8.8) for a penny.(kinda have a hunch honda wants a mint for it, we'll see)
they very well may charge you an arm and a leg. My dealer wanted $5 for a ******' crush washer. "sup bud, I checked since I know you like quality service, and I dunno if you want this, since its $5"

"........." ~me
and the head tech was there "no its not dude"

then he showed me the screen and I just walked away
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Old Jul 25, 2014 | 08:26 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Originally Posted by Swansen
yeah i know it, that might be the only option aside from a caliper and then whatever fine thread pitch would match(or wait! i have a friend with an amazing tap/die set and those neat thread finder deals).

guess i'll check on price, but i live in a pretty industrial city, there are a few places where one can find any nut/bolt in any spec(say 8.8) for a penny.(kinda have a hunch honda wants a mint for it, we'll see)
Cool, I wish I could help. Well if you need me to take off a few at the local pull a part that can be done. I like to stop by and take a **** ton 10mm bolts.
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Old Jul 25, 2014 | 10:27 AM
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Default Re: 97 Civic transmission mount - Need size of three bolts

yep, they mentioned that they'd want my unborn child. i said maybe if they'd do a limited run on some carbon S2000's... seriously though, $25 was what they wanted. $12 a piece though, better be titanium at that point. grade 10.9 bolt for the size required is like $1-2 a piece aftermarket.

stud size is 12(dia) x 40mm(length) and i'm going to guess 1.25 thread pitch. elsewhere on the car m12x1.25 is being used so without actually checking for sure its my hunch.

hhoorraay.
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Old Jul 25, 2014 | 01:15 PM
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Default Re: 97 Civic transmission mount - Need size of three bolts

I suggest, as I've suggested to others, try the Honda of stores.
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Old Jul 25, 2014 | 02:35 PM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Originally Posted by tony_2018
Well if you need me to take off a few at the local pull a part that can be done. I like to stop by and take a **** ton 10mm bolts.
also, yeah man, that'd be sweet. bbuutt.. i have some real doubts about being able to extract those studs, but aye, maybe not.

honda of stores??
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Old Jul 25, 2014 | 02:47 PM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Bolt Boys.
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Old Jul 25, 2014 | 04:49 PM
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Default Re: 97 Civic transmission mount - Need size of three bolts

Honda online stores, sorry. typing from my phone just sucks sometimes.
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Old May 10, 2021 | 07:19 AM
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Default Re: Need bolt size

Anyone know where I can get the stud and nuts to put In the the transmission bracket or a replacement for them, I’m currently swapping trans auto d16y8

Last edited by TRuE Mainstreet; May 10, 2021 at 07:20 AM. Reason: Wrong wording
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