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Lobes in Park and reverse- 1990 CRX base model

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Old Nov 22, 2020 | 04:29 AM
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Icon4 Lobes in Park and reverse- 1990 CRX base model

Good day/morning/evening.......depending on when you read this.😁


We have a 90 CRX we replaced the motor with a used 78k mile one. It's been doing great until yesterday; it started to lobe in park and reverse only. It also now sounds like a lifter knock like the old cheys use to do.

We have put a lot money, time, sweat and tears into this car and its very sentimental. Any ideas to try and at least rule out?
I'm afraid to drive it now and fear worse case senerio and not sleeping from the stress.

Any suggestions would be greatly appreciated

Thank you in advance. You have been a big help to myself and my daughter.

Ps: where are body panel clips sold?
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Old Nov 24, 2020 | 05:23 AM
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Default Re: Lobes in Park and reverse- 1990 CRX base model

What do you mean by lobe in park and reverse? You mean lope - like the sound of the idle changing? If it sounds like it's knocking that could be a bearing going out... check the oil level?

Body clips are on eBay/Amazon most likely. You can crossreference part numbers using a Honda parts website, find the one you need and plug the number into eBay.
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Old Nov 24, 2020 | 07:01 PM
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Default Re: Lobes in Park and reverse- 1990 CRX base model

Originally Posted by Smackin
What do you mean by lobe in park and reverse? You mean lope - like the sound of the idle changing? If it sounds like it's knocking that could be a bearing going out... check the oil level?

Body clips are on eBay/Amazon most likely. You can crossreference part numbers using a Honda parts website, find the one you need and plug the number into eBay.

Thank you. Typo and it actually just started. Its a 78k motor. Its hard to explain in words but, if a regular idle was a.....b.....c.....d this is doing A...b...C...d. I'll have to record it and see if I can post it.

With regards to the clips. I am specifically looking for the clips that screw onto the threaded pegs on the rear triangle pieces by the back hatch. No one can even tell me the actual part name for those triangles so doing a search for triangle clips is insanely crazy.

Thank you for the help
V
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Old Nov 24, 2020 | 11:46 PM
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Default Re: Lobes in Park and reverse- 1990 CRX base model

Part number for those is 75551-SH2-005
You can buy them new from the dealer.
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Old Nov 25, 2020 | 05:10 AM
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Default Re: Lobes in Park and reverse- 1990 CRX base model

Originally Posted by S1lv3rW1z4rd
Part number for those is 75551-SH2-005
You can buy them new from the dealer.

How in the name of all.......do you know that part number?

Idon't even know what you call the triangles let alone the clips. Is there a place that has things like that you can search and get the number?

I feel like the total dork or moran because I cant find things by their true name
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Old Nov 25, 2020 | 07:35 AM
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Default Re: Lobes in Park and reverse- 1990 CRX base model

Yes there is, try for instance "lingshondaparts" in google.

I don't believe you can buy any aftermarket for those clips, so I bought them myself from the dealer a while ago.
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Old Nov 25, 2020 | 06:00 PM
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Default Re: Lobes in Park and reverse- 1990 CRX base model

Originally Posted by VMac
Its hard to explain in words but, if a regular idle was a.....b.....c.....d this is doing A...b...C...d. I'll have to record it and see if I can post it.
Could be a lot of things. Mechanical timing will definitely cause a lope, even if you're off by just a tooth. First thing I'd do is double check that, but be aware that there are two different timing procedures for different D series engines. The SI engine (D16a6, ZC SOHC) timing marks are different than the other trim level engines - just mentioning that in case you didn't get an exact matching motor.. Distributor timing or wires, if they're swapped into the wrong cyl I suppose could cause something similar to that as well, although when my dizzy timing was off I couldn't really notice. Are the valves adjusted to spec? Maybe a couple valves are just way off for some reason.

Edit: I forgot your original post saying it only happens in Park and reverse so disregard that, my bad lol.
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Old Nov 25, 2020 | 07:34 PM
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Default Re: Lobes in Park and reverse- 1990 CRX base model

Originally Posted by Smackin
Could be a lot of things. Mechanical timing will definitely cause a lope, even if you're off by just a tooth. First thing I'd do is double check that, but be aware that there are two different timing procedures for different D series engines. The SI engine (D16a6, ZC SOHC) timing marks are different than the other trim level engines - just mentioning that in case you didn't get an exact matching motor.. Distributor timing or wires, if they're swapped into the wrong cyl I suppose could cause something similar to that as well, although when my dizzy timing was off I couldn't really notice. Are the valves adjusted to spec? Maybe a couple valves are just way off for some reason.

Edit: I forgot your original post saying it only happens in Park and reverse so disregard that, my bad lol.

Thank you for info. The motor was actually pulled from a CRX in Oregon and shipped to me. I purchased all new parts. The list is a mile long. It just started doing this. I took it to a friend who has a shop and his mechanic thinks it is the IACV. Which made my stomach jump to my throat because they are $400. We will figure it out eventually
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Old Nov 26, 2020 | 03:31 AM
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Default Re: Lobes in Park and reverse- 1990 CRX base model

Originally Posted by VMac
Thank you for info. The motor was actually pulled from a CRX in Oregon and shipped to me. I purchased all new parts. The list is a mile long. It just started doing this. I took it to a friend who has a shop and his mechanic thinks it is the IACV. Which made my stomach jump to my throat because they are $400. We will figure it out eventually
What motor is in your CRX?
An IACV is $400... where are you getting your parts from? You should check out Rockauto instead.. (1.6) or for the 1.5

I've heard of the IACV causing bouncing or high idle, when you say it "lopes" however, that gives me a different impression; I think of youtube.com/watch?v=69XYDmVmccs That's a V8, but a 4 cyl lope would sound similar. It's hard to figure these things out over the internet hah. From what I've read on here, air bubbles in the coolant can cause bouncing idle, although i'm not sure if that is only in park/reverse or present throughout all gear selections. In any case, I would bleed the coolant out again since it's easy and almost free, besides coolant.

Last edited by Smackin; Nov 26, 2020 at 03:36 AM. Reason: removed link to vid, HT was tryna embed it.
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Old Nov 26, 2020 | 05:37 AM
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Default Re: Lobes in Park and reverse- 1990 CRX base model

Originally Posted by Smackin
What motor is in your CRX?
An IACV is $400... where are you getting your parts from? You should check out Rockauto instead.. (1.6) or for the 1.5

I've heard of the IACV causing bouncing or high idle, when you say it "lopes" however, that gives me a different impression; I think of youtube.com/watch?v=69XYDmVmccs That's a V8, but a 4 cyl lope would sound similar. It's hard to figure these things out over the internet hah. From what I've read on here, air bubbles in the coolant can cause bouncing idle, although i'm not sure if that is only in park/reverse or present throughout all gear selections. In any case, I would bleed the coolant out again since it's easy and almost free, besides coolant.

Thanks for the video. I'll have to record it when we use it today. Maybe bouncing is a better way to describe. That challenger sounds like a misfire more than our sound.

Parts for old cars out here in Texas are insane. Old, fun, rare, cars are few and far between. Now if it were a truck then heck I'd be rolling in parts. Trucks are a dime a dozen in Texas..ranches everywhere and trucks are like "symbol" in a way.

Thanks for all the help its apppreciated. Just one part or piece at a time. Part of building an old car.
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