Motor mount bolt size? 90 civic hatch

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Old Apr 15, 2018 | 08:18 AM
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Default Motor mount bolt size? 90 civic hatch

So I've had this civic project for a while, my wife "cleaned" the shed and somehow threw away a box that had a buncha my bolts/hoses misc stuff

I got the motor dropped in the car last night and realised I'm missing the front motor mount bolt, does anybody know the size I need?

also exhaust bolts?

and ALL of my coolant hoses & vacuum lines, thinking of getting a cheap hose kit off ebay, are they worth whopping $40? Lol

thanks!
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Old Apr 15, 2018 | 09:37 AM
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Default Re: Motor mount bolt size? 90 civic hatch

the junkyard would be a better option to get bolts and hoses
and aslo cheap
you could probebly get everything you need for about 20 bucks maybe even less
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Old Apr 15, 2018 | 10:04 AM
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Default Re: Motor mount bolt size? 90 civic hatch

Yeah my buddy actually bought both civics with d engines from the junkyard about a year ago and sold them.. only have some 80s integras with k series and a few accords with f motors
small town with 1 junkyard makes used parts hard to come by

there's some parts cars in surrounding towns but they're all 2-4hrs from me so figured I would see if I could buy online for the same as gas $ would be lol
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Old Apr 15, 2018 | 10:56 AM
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Default Re: Motor mount bolt size? 90 civic hatch

motor mount bolts are your 14mm and 17mm
and the exhaust bolts are your 12mm
and you can take them off those integras with k series engines
and those accords and the junkyard
you can measure the length you need before you leave home or you can just grab a hand full of them
you can also get your hoses off those cars as well

if you really want to you can make it happen
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Old Apr 15, 2018 | 11:15 AM
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Default Re: Motor mount bolt size? 90 civic hatch

Okay sweet

I was told the thread "pitch"? And bolt length would be wrong

I found 2 14s that seem to work fine, just need the 17 that crosses through frame & mount now

thanks!!
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Old Apr 15, 2018 | 11:23 AM
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Default Re: Motor mount bolt size? 90 civic hatch

no problem
the hoses your probebly going to have to bend a little or trim but you can also find them off those cars
remember there honda bolts and hoses
even the 2018 hondas are still useing the same stuff as the 1971 s were back in the day

now lets see some more pictures of that hatch your working on ^_^
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Old Apr 15, 2018 | 11:45 AM
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Default Re: Motor mount bolt size? 90 civic hatch

Here's the engine bay as of lastnight, I will get some body pics when I get off work. It's pretty rough, but I got the car for $50 so I'm not complaining lol

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Old Apr 15, 2018 | 07:26 PM
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Default Re: Motor mount bolt size? 90 civic hatch

So I just checked the door tag and turns out it's an 89 lol

but like I said, it's a genuine $50 rez rocket
not real pretty but lots of potential for being less than 500 into it total after getting the engine solid



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Old Apr 15, 2018 | 07:58 PM
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Default Re: Motor mount bolt size? 90 civic hatch

doesnt look like its rusted or dented
you got a great deal on it too ^_^

enjoy it man these are great cars
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Old Apr 15, 2018 | 08:19 PM
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Default Re: Motor mount bolt size? 90 civic hatch

fastener information including size, pitch and length are all in the shop manual. easy to find to download yourself. everyone should have a digital copy at least.

sometimes the same fastener information is available on the dealer parts description. easy to find online from multiple vendors.

that being said, you shouldnt use anything but an OEM bolt. every bolt on a honda is specified and designed for many other features than just the pitch and length, such as the size and type of head, should length, tip design etc.

theres no excuse, you can buy any fastener from the dealer. or find them readily still in the junkyard.
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Old Apr 20, 2018 | 03:08 PM
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Default Re: Motor mount bolt size? 90 civic hatch

Thanks tyson!


got all the bolts figured out
quick question about my starter/battery wiring

does my positive battery cable run to starter, and starter back up to the panel/box (that I believe is starter relay,ect..)

or does my positive battery cable run to the box, then from the box to the starter?
been searching all morning and can't find any pictures or clear cut answer. Thanks
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Old Apr 20, 2018 | 04:14 PM
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Default Re: Motor mount bolt size? 90 civic hatch

Originally Posted by MTswisher
Thanks tyson!


got all the bolts figured out
quick question about my starter/battery wiring

does my positive battery cable run to starter, and starter back up to the panel/box (that I believe is starter relay,ect..)

or does my positive battery cable run to the box, then from the box to the starter?
been searching all morning and can't find any pictures or clear cut answer. Thanks
better way to ask, does this ripped wire connect to battery, or starter?



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Old Apr 20, 2018 | 10:16 PM
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Default Re: Motor mount bolt size? 90 civic hatch

goes to batery

on the positive terminal there should be two wires that come off it
one to starter and one to the fusebox
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Old Apr 30, 2018 | 11:18 AM
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Default Re: Motor mount bolt size? 90 civic hatch

Thanks for answering my questions guys 😁

she's running like a beast. Sorta proud, my first engine removal/rebuild/install

scored a nice set of wheels & tires for $100. Getting plates today, she'll be all over this state in no time! Lol
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Old Apr 30, 2018 | 11:00 PM
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Default Re: Motor mount bolt size? 90 civic hatch

nice!! we have one more on the road again ^_^
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Old May 1, 2018 | 04:47 AM
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Default Re: Motor mount bolt size? 90 civic hatch

Originally Posted by Tyson
theres no excuse, you can buy any fastener from the dealer.
When I tried getting new engine mount bolts thru the dealer, they told me they are no longer available and to use standard hardware, haha!!

I did not, but the bolts used on mine are OEM but appear to be for the wrong application and are too long, using stacked washers. I also have no junkyards near me with any Hondas, so if there is a source online for where to get new OEM bolts I'd be thrilled to hear it!
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Old May 1, 2018 | 08:58 AM
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Default Re: Motor mount bolt size? 90 civic hatch

looks available to me.

https://www.hondapartsnow.com/genuine/honda~bolt~flange~90164-sh3-010.html
https://www.acurapartswarehouse.com/oem/acura~bolt~flange~12x90~90164-sh3-010.html
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Old May 1, 2018 | 11:07 AM
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Default Re: Motor mount bolt size? 90 civic hatch


True that one is, but I needed numbers 15, 18, and 33 in that first illustration which are not.
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Old May 1, 2018 | 11:42 AM
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Default Re: Motor mount bolt size? 90 civic hatch

https://www.acurapartswarehouse.com/...9-sk7-000.html
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Old May 1, 2018 | 12:43 PM
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Default Re: Motor mount bolt size? 90 civic hatch

Sweet, thank you! I'll double check if those lengths will work in the EF.


Edit: Nope. I called and 90182-SK7-000 (the 12x100) was replaced by 90165-ST5-000, which has also been discontinued. Still no luck!

Checking into 90183-SR3-000 and 95801-12120-08 which are also 12x100.

Last edited by 2x0; May 1, 2018 at 02:27 PM.
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