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My Random engine noises

Engine/Gearbox questions and discussion
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vanzep
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Re: My Random engine noises

Post by vanzep » Wed Mar 21, 2012 12:31 pm

youve had a timing belt change - if you had this done at Honda i would take it back to them and have them check it out - ask them to retension the timing belts and auxiliary belts and check the auto tensioner
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Bio
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Post by Bio » Wed Mar 21, 2012 12:33 pm

Hmm those gauges are pretty cheap.
http://www.ebay.co.uk/itm/AUTOGAUGE-52m ... 56494184e6 I guess is the one?

Only thing is plumbing it in.
1998 5th Gen 2.2 VTi Manual H22A5 BB8

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A1ex
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Post by A1ex » Wed Mar 21, 2012 12:39 pm

Wow that's even cheaper than the one I found! That'll do the job, the one I had went up to 100 psi rater than 7 bar but it's pretty much the same range.

It comes with the pressure sensor required and there are only 4 wires to connect. Speak to BMCC he put some gauges in last weekend, I got PAW to do mine as it was easier. Make sure the gauge is electronic rather than mechanical too
PAW rebuilt 98 prelude 228bhp & 171lb/ft R.I.P.
PAW rebuilt 01 ATR 238bhp & 164lb/ft sold
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Post by Bio » Sat Mar 24, 2012 1:34 pm

Well, this has gotten worse today. Turned her off last night (everything was sounding normal) and had to do a car swap around the drive so started her up.

The sound now sounds a little bit like the bottom end so I'm pretty much s*** scared that the motor is gone as I cannot afford to do a rebuild.
I was scheduled to do an oil change on Monday so I'm thinking that I'll drop the pan at the same time.
As I'm not at home (had to go to work) I don't have the workshop manual PDF, is there a gasket on the sump that I'd need to replace assuming everything on the bottom end is OK and I put it back together?

Additionally assuming I find no chunks of metal, will I be able to tell anything useful by dropping the pan off? Anything I can really check or look out for?

Just had a thought, is the exhaust going to be in the way of taking the pan off also?
1998 5th Gen 2.2 VTi Manual H22A5 BB8

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Post by A1ex » Sat Mar 24, 2012 2:50 pm

Yes the exhaust has to come off, when Rich did mine he took the crank girdle off to get to the crank bearings and big ends.

Have no idea about gaskets im afraid, I just paid the master to do it for me!
PAW rebuilt 98 prelude 228bhp & 171lb/ft R.I.P.
PAW rebuilt 01 ATR 238bhp & 164lb/ft sold
Monte Carlo Blue 02 S2K :D

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Post by Bio » Sat Mar 24, 2012 2:55 pm

How I wish Rich wasn't so far away! Looks like it'll have to go to the local mechanic that's just up the road from me that I usually use.

:cry:
1998 5th Gen 2.2 VTi Manual H22A5 BB8

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Buzzonion Vtec
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Post by Buzzonion Vtec » Sat Mar 24, 2012 3:42 pm

Sorry, only just seen this.
Unfortunately noises don't always come across too well on video so it's difficult to accurately diagnose.
There does sound like an underlying background noise that sounds a bit like a loose timing belt rubbing the plastic covers. Could possibly also be crank pulley rubbing the guard or even working it's way loose.
I would suggest as vanzep has and nip it back to Honda for a timing belt/pulley check.

This is of course not suggesting that this is definitely the cause but it's difficult to tell for sure from the video.
If you do want to check in the sump them you will need to remove down pipes and Gearbox brace before the sump can be removed. There is no gaskit on 5th gen, instead sealant is used - Hondabond or threebond should be used.
Once removed, unless you see bits in the sump you'll not be able to check for bearing wear or damage without removing big end caps and crank girdle - crank will need support.

Personally I wouldn't go that far without first checking the belts and or oil pressure first.

Sorry if this info is a bit sketchy but I only have access from my mobile at the mo so it's difficult to reply in great depth

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Post by Bio » Sat Mar 24, 2012 7:41 pm

Cheers Buzzonion.
I'm probably going to take it to my local mechanic that did the timing belt (only the valve lash was done by Honda) and see what he says I think. Luckily he's just under a mile up the road from me. I'm hoping its just that the replacement tensioner has gone rather than the oil pump as that seems to be quite an expensive task to have done.
I'd love to do it myself but I really don't have the tools or knowledge to do it. I can only do basic stuff like brakes, oil changes, struts etc.

Guess I'll have to get one of the other cars on the road just incase this one ends up being off the road for a little while :(
(Yes I have a couple of cars on my drive :P)
1998 5th Gen 2.2 VTi Manual H22A5 BB8

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Bio
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Post by Bio » Tue Mar 27, 2012 5:51 pm

Right.

Did a full oil change today, replaced with Mobil Super 3000, installed my sandwich plate and gauge (just in the engine bay for testing, then removed after), and a shiny new filter.

Oil pressure at a totally cold start is around 90Psi, running around at ~3000RPM 50-80Psi, warm idle, around 15Psi.
By all accounts this appears to be correct considering my warm idle is a bit shy of 1000rpm.
Could someone verify for me if this is about right?

The noise is still there but a little less worse. Still cant tell what it is so at the weekend I'll get the PAS belt off to check the PAS pump isn't dying.
1998 5th Gen 2.2 VTi Manual H22A5 BB8

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Post by A1ex » Sat Mar 31, 2012 2:56 pm

Those figures are almost exactly the same as the ones i had from Rich too keep an eye on mine so you definately dont have an oil issue.

Perhaps, seeing as this isn't the problem now a drive to PAW wouldnt be so risky...

BTW buzzonion vtec is Rich from PAW's personal account ;)
PAW rebuilt 98 prelude 228bhp & 171lb/ft R.I.P.
PAW rebuilt 01 ATR 238bhp & 164lb/ft sold
Monte Carlo Blue 02 S2K :D

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