Vibrations at certain RPM

Gwynne · May 17, 2023

CountyV8 said:
No vibrations here.

Petrol or diesel? But delighted you’re vibration free

Flewks · May 17, 2023

Gwynne said:
Petrol or diesel?

Diesel Trialmaster

CountyV8 · May 17, 2023

Gwynne said:
Petrol or diesel? But delighted you’re vibration free

Petrol

Spjnr · Jun 8, 2023

I was still getting some harshness at 1700-1800 rpm. So after @ECrider pointed me to @rovie 's post i thought I'd investigate further.

Under the bonnet of my diesel grenadier, I found a bit of heat shielding that's held on by a 10mm bolt. It's between the airbox and the firewall on the drivers side (RHD). This bolt was loose as a goose. 2 full turns before it nipped up tight.

It's all but eliminated the harsh vibrations. You can still tell that's the engines natural resonance band, but it's 90% better now. Worth checking out

Wilaspira · Jun 8, 2023

Spjnr said:
I was still getting some harshness at 1700-1800 rpm. So after @ECrider pointed me to @rovie 's post i thought I'd investigate further.

Under the bonnet of my diesel grenadier, I found a bit of heat shielding that's held on by a 10mm bolt. It's between the airbox and the firewall on the drivers side (RHD). This bolt was loose as a goose. 2 full turns before it nipped up tight.

It's all but eliminated the harsh vibrations. You can still tell that's the engines natural resonance band, but it's 90% better now. Worth checking out

I have a very tiny/tinny rattle at c1800-2000 revs which is irritating (diesel n1). I looked under car and heat shield over exhaust at rear at one point/corner was evidently rattling when I very slightly tapped it. If this works, easy fix of some rubber at the relevant corner (touchwood). Would have been better if Ineos had engineered things such that this “aftermarket” fix had not been needed but no-one died, so in the scheme of thing all is good!

DCPU · Jun 8, 2023

Coincidently, I found this top edge to have some movement in it:

CountyV8 · Jun 8, 2023

There are 2 heater pipes up under the glove box (yes the hot pipes watch out) they can possibly cause a vibration check they don't touch.

rovie · Jun 8, 2023

Spjnr said:
I was still getting some harshness at 1700-1800 rpm. So after @ECrider pointed me to @rovie 's post i thought I'd investigate further.

Under the bonnet of my diesel grenadier, I found a bit of heat shielding that's held on by a 10mm bolt. It's between the airbox and the firewall on the drivers side (RHD). This bolt was loose as a goose. 2 full turns before it nipped up tight.

It's all but eliminated the harsh vibrations. You can still tell that's the engines natural resonance band, but it's 90% better now. Worth checking out

@Spjnr Hey, that's great! Thanks for the tip. I'll have a look at that too.

Znarfgh · Jun 9, 2023

bemax said:
My TD5 has the problem that around 2000 rpm there are no vibration. Help is welcome. Don’t know whether the car is to rescue at all. Maybe I have to wreck it
Over and under 2000 rpm lots of vibration and Klangs and klongs.

Yep, mine too - had it in both TD5's

DCPU · Jun 11, 2023

If anyone's struggling to discern the vibrations, or is uncertain at what revs they start, there's a new diagnostic tool on the market:

View this content on Instagram

View this content on Instagram

View: https://www.instagram.com/reel/Cst2yXsN1kO/?igshid=MTc4MmM1YmI2Ng==

Tazzieman · Jun 11, 2023

Jubblometer

Telliottaus · Jun 14, 2023

CountyV8 said:
There are 2 heater pipes up under the glove box (yes the hot pipes watch out) they can possibly cause a vibration check they don't touch.

I'm going to have a look at that as there is something vibrating when my climate fan is on high....

CountyV8 · Jun 14, 2023

My climate fan make noise on high but not on recerc

Angus · Jul 17, 2023

Hi everyone, I have had a diesel Grenadier for a few weeks and find that the vibration occurs around 2000 RPM, especially if you accelerate slowly and maintain the RPM in this range. It is especially annoying when off-road as the engine works hard at these RPM and it gets pretty noisy. I was wondering if it might also be due to resonance from the heat shields, but there is definitely a specific RPM and gearing range that sets it off. I have heard the petrol versions do not have this problem.

Logsplitter · Jul 17, 2023

Angus said:
Hi everyone, I have had a diesel Grenadier for a few weeks and find that the vibration occurs around 2000 RPM, especially if you accelerate slowly and maintain the RPM in this range. It is especially annoying when off-road as the engine works hard at these RPM and it gets pretty noisy. I was wondering if it might also be due to resonance from the heat shields, but there is definitely a specific RPM and gearing range that sets it off. I have heard the petrol versions do not have this problem.

I have the petrol version and no vibrations at all. I have a loan diesel version whilst my vehicle is in for a repair and can detect a vibration around the 1800- 2000rpm range when going at a constant speed.

Telliottaus · Jul 17, 2023

I would suggest having a look at the heat shield on the RHS of the engine bay running from the firewall to the front of the vehicle past the aircleaner. The mount at the front of mine had pulled through.

Darby · Aug 7, 2023

CountyV8 said:
There are 2 heater pipes up under the glove box (yes the hot pipes watch out) they can possibly cause a vibration check they don't touch.

One of these two pipes are rattling for me! I have confirmed by putting pressure against one when the rattle occurs, and it ceases. Do you know if there is an easy way to access these pipes to tighten their fittings or is it a dealer job? (I wont be able to get to a dealer for a few weeks as I am rural). Thanks.

DCPU · Aug 7, 2023

Darby said:
Do you know if there is an easy way to access these pipes to tighten their fittings or is it a dealer job? (I wont be able to get to a dealer for a few weeks as I am rural). Thanks.

Maybe through the scuttle panel access cover?

Thread 'Under bonnet - removing bulkhead/scuttle panel access covers' https://www.theineosforum.com/threa...ulkhead-scuttle-panel-access-covers.12412571/

emax · Aug 18, 2023

Are there any new findings on the vibrations?

emax · Aug 18, 2023

Spjnr said:
I was still getting some harshness at 1700-1800 rpm. So after @ECrider pointed me to @rovie 's post i thought I'd investigate further.

Can you tell which post this was (link?)

Spjnr said:
Under the bonnet of my diesel grenadier, I found a bit of heat shielding that's held on by a 10mm bolt. It's between the airbox and the firewall on the drivers side (RHD). This bolt was loose as a goose. 2 full turns before it nipped up tight.

RHD (yours) and LHD (mine) version probably differ in that area, and it's anyway hard to imagine just by words.

So a photograph would help a lot.

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Vibrations at certain RPM

Gwynne

Flewks

CountyV8

Spjnr

Wilaspira

DCPU

CountyV8

rovie

Znarfgh

DCPU

Tazzieman

Telliottaus

CountyV8

Angus

Logsplitter

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Telliottaus

Darby

DCPU

emax

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