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D17a2 head swap on a d17a

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Old May 15, 2023
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Car does no accelerate

Hello guys I’ve having issue with my 7th gen. Recently the serpentine belt shredded and I replaced it with a new one but that belt also tore apart and actually threw it out. I have replace the belt and the car turn over into limp mode and eventually stopped accelerating completely gas pedal left the chat. So I check and I notice that the wiring for the crank shaft sensor was expose by the belt I am so lost and I have no idea if I can still fix her can anyone help me please
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Old May 16, 2023
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Re: Car does no accelerate

You need to repair the wiring. As for the belt, sounds like something is seized. Or pay someone.
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Old May 16, 2023
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Re: Car does no accelerate

Originally Posted by Colin42
You need to repair the wiring. As for the belt, sounds like something is seized. Or pay someone.

do you think that will get the car to start accelerating like normal again?
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Old May 16, 2023
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Re: Car does no accelerate

It would certainly help....
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Old May 17, 2023
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Re: Car does no accelerate

Crankshaft position sensor reading is very important to the ECU.
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Old May 20, 2023
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D17a2 head swap on a d17a

Hello guys my car unfortunately got trash stuck inside the timing belt and cause my car to loose it’s compression since then I have been trying to swap a new head in but I wasn’t sure where to start could I possible swap In a regular d17a2 head on the jdm d17a? Also if I rip out a clean head off a junkyard civic would I have to resurface the head or would it not be warped? Just asking before I get started I’m just looking for some insight !
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Old May 20, 2023
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Re: D17a2 head swap on a d17a

not an DIY article to help others, moving to mechanical issues section.
D17A2 and D17A are same.
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Old May 20, 2023
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Re: D17a2 head swap on a d17a

Originally Posted by bigchungus
Also if I rip out a clean head off a junkyard civic would I have to resurface the head or would it not be warped?
how would we know that cars' history? Would you know if it overheated? If you say no idea, that is our response...
for the work required, I would send to a shop to check.
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Old May 20, 2023
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Re: D17a2 head swap on a d17a

Originally Posted by sdaidoji
how would we know that cars' history? Would you know if it overheated? If you say no idea, that is our response...
for the work required, I would send to a shop to check.

oh because my serpentine belt tore and it burned up my timing belt cover and knocked the timing out of place so I forsure have bent valves
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Old May 20, 2023
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Re: D17a2 head swap on a d17a

Originally Posted by sdaidoji
how would we know that cars' history? Would you know if it overheated? If you say no idea, that is our response...
for the work required, I would send to a shop to check.

it’s my Own car and no the car hasn’t overheated or had an head gasket issues forsake and I just don’t know if taking the head off will cause unevenness because I need to replace some bent valves
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Old May 20, 2023
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Re: D17a2 head swap on a d17a

Also car already has pretty low miles around 100 thousand so I just wanna get it running asap
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Old May 20, 2023
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Timing belt jumped

So unfortunately my 7gen d17a jumped the timing. It all started when the serpentine belt tore and shredded the timing belt cover and knocked it out of time. Car doesn’t start so I’m pretty sure I have some bent valves and I was wondering if I should rip a d17a2 head off a junk yard and re time the car or will my car have issues and just replace the whole motor instead. Motor has around 100 thousand miles
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Old May 20, 2023
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Re: Car does no accelerate

Originally Posted by BrotatoChip
Crankshaft position sensor reading is very important to the ECU.

it died car lost comepression ended shredding the timing cover and sensor enough to expose the mother board and knocked the timing off for use car won’t start but cranks definitely bend valves
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Old May 20, 2023
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Re: D17a2 head swap on a d17a

He was more referring to the junkyard head. Either way, whichever head you decide to use, I'd still take it to a machine shop to, at the very least, make sure it's flat. Last thing you want to do is install a head that's warped like .004" and have to re-do the job.

What I did was (having a spare engine laying around), was take the head from the spare engine, dropped it off at a machine shop to check for flatness, and, if warped out of spec (and yes, that .004" is the figure they told me it was warped), have them deck the head. While it was at the shop, I was taking apart the engine in my car and otherwise preparing for the head swap.

Shop called, let me know what they found and did (.004" out of spec, decked it, hot tanked it to clean it up). I picked up head, got home, and was able to drop that sucker in right away
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Old May 20, 2023
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Re: D17a2 head swap on a d17a

Originally Posted by xRiCeBoYx
He was more referring to the junkyard head. Either way, whichever head you decide to use, I'd still take it to a machine shop to, at the very least, make sure it's flat. Last thing you want to do is install a head that's warped like .004" and have to re-do the job.

What I did was (having a spare engine laying around), was take the head from the spare engine, dropped it off at a machine shop to check for flatness, and, if warped out of spec (and yes, that .004" is the figure they told me it was warped), have them deck the head. While it was at the shop, I was taking apart the engine in my car and otherwise preparing for the head swap.

Shop called, let me know what they found and did (.004" out of spec, decked it, hot tanked it to clean it up). I picked up head, got home, and was able to drop that sucker in right away

Oh okay got it so what about the block do you think I would need it decked as well or Neh since I didn’t experience overheating or a blown gasket and also how much would a machine shop charge?
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Old May 20, 2023
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Re: D17a2 head swap on a d17a

leave the block, it is iron. head is aluminum so can warp
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Old May 20, 2023
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Re: Car does no accelerate

motherboard? no motherboards in cars
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Old May 20, 2023
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Re: Car does no accelerate

Originally Posted by sdaidoji
motherboard? no motherboards in cars
the circuit board for the crank sensor
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Old May 20, 2023
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Re: Car does no accelerate

It's a sensor, not a processor
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Old May 20, 2023
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Re: Car does no accelerate

Originally Posted by sdaidoji
It's a sensor, not a processor
melted the plastic off the sensor exposing the circuit inside literally a whole mess
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Old May 20, 2023
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Re: Car does no accelerate

Originally Posted by bigchungus
the circuit board for the crank sensor
Any busted sensors, or electronics I would replace with new. If they are cracked or damaged and magic leaks out of them, there's RTVing it or putting the magic back in. If its a expensive part you might be able to find a used certified/refurbished replacement. I would replace any wiring that is (possible) damaged in the area too.

I did a timing belt on my 2002 EX D17A, and had a good bit of trouble finding a lower timing cover (hopefully) they are back in stock and easily available. I got mine off Amazon, but only one of the three listings I found actually had the right part.
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Old May 20, 2023
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Re: D17a2 head swap on a d17a

Only buy oem sensors
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Old May 21, 2023
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Re: D17a2 head swap on a d17a

Originally Posted by sdaidoji
leave the block, it is iron. head is aluminum so can warp
Swear the block was aluminum, too
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Old May 21, 2023
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Re: D17a2 head swap on a d17a

Originally Posted by xRiCeBoYx
Swear the block was aluminum, too
ow, mixing engine makers...
the block have more mass to endure warping, unlike head.
No need milling block most of cases.
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Old May 25, 2023
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Re: D17a2 head swap on a d17a

Originally Posted by sdaidoji
ow, mixing engine makers...
the block have more mass to endure warping, unlike head.
No need milling block most of cases.
what gasket do you suggest I use for the head?
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Old May 25, 2023
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Re: Car does no accelerate

Originally Posted by TokyoCornflower
Any busted sensors, or electronics I would replace with new. If they are cracked or damaged and magic leaks out of them, there's RTVing it or putting the magic back in. If its a expensive part you might be able to find a used certified/refurbished replacement. I would replace any wiring that is (possible) damaged in the area too.

I did a timing belt on my 2002 EX D17A, and had a good bit of trouble finding a lower timing cover (hopefully) they are back in stock and easily available. I got mine off Amazon, but only one of the three listings I found actually had the right part.
so I got every thing fixed new sensor as well car is jumped for sure I check and the crank was jumped like 5 teeth counter clock. I plan to buy a torque wrench soon and get the belt changed, replace all seals, cleaned off the pulleys and get the new tension kit. I will set it to tdc for both crank and cam and check for compression leaks before starting. If I find there is a leak I will try and replace the valve that is damaged and send the head to resurface and then I will buy some Apr studs and valve studs and torque in 3 steps of 15,30, and 60 or 65 not sure. Also idk what is the torque specs for the Apr valve train nuts hopefully she fires right yo!!
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Old May 25, 2023
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Re: D17a2 head swap on a d17a

Originally Posted by bigchungus
what gasket do you suggest I use for the head?
OEM from honda parts sites
no need to replace studs, they are non-strechable
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