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  Soarer Central * Mechanical - V8 * Can anyone help with V8 engine vibration? * Archive through June 22, 2013 Previous Previous    Next Next  

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Michael Ireland
Newbie
West Midlands
Soarer UZZ31 V8

Posts: 1
Reg: 02-2013

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Sunday, February 24, 2013 - 09:08 pm, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I wonder if anyone can help me with a new issue?

I have a 1991 UZZ31 and not too long back my waterpump gave up the ghost. Quite bad! Leaked water as quick as I could fill it!

So... I have changed (for new parts) the waterpump, the cam-belt, the radiator (as that blew as well), the spark plugs, the rotors and the distributors!

Finally got it back together again and it wouldn't start! Found out I had the rotors on the wrong way round! (Should never assume). Turned the right way round and lo-and-behold it started fine. Ticked over sweet until I started to drive it! A mild vibration and a slight lack of power was noticed! As I drove it a bit further the engine warmed and the vibration got worse! Really quite bad so took it hope immediately where it was vibrating whilst idling!
I waited a bit for the engine to cool down and although it is slightly noticeable, it is still there so wasn't risking in driving it again.

I thought this was a tooth out on the cam belt somewhere so have now taken the engine back so the crank is at TDC and the rotors are all perfectly lined up with their markers accordingly.

Mmm... My next thought is could it be the harmonic balancer? (used correct tools to move it originally) or does anyone have any ideas as to what it may be?

Thanks for reading this post and am very grateful for any input! Thanks, Mick.
Ian Johnston
Goo Roo
South Australia
1995 UZZ31, BA XR6Turbo Ute. 2007 VE GTS.

Posts: 1725
Reg: 07-2005

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Sunday, February 24, 2013 - 09:40 pm, by:  Ian Johnston (Ted) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi Michael, welcome to the site. Was it vibrating prior to belt change? Sounds like the timing is out, or plug gap wrong. What procedure did you use to do the belt timing? Peter Scott on Planet Soarer has a very good guide to doing the belt.
Boris Siljanoski
Goo Roo
Western Australia
LS400 + Soarer.

Posts: 1857
Reg: 11-2007

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Sunday, February 24, 2013 - 10:18 pm, by:  Boris Siljanoski (Z2tt) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi.

Did it idle smooth as soon as you started it and let it idle a bit after the belt change.... if it did then the firing order and valve timing is good.

Make sure you connected all the looms around the front of the engine well, such as to the Igniter, Crank angle sensor and other bits.

Are all the Ignition leads on good and not broken or loose when you put them back on?
Michael Ireland
Newbie
West Midlands
Soarer UZZ31 V8

Posts: 2
Reg: 02-2013

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Monday, February 25, 2013 - 02:16 am, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi. Thanks for your replies.

Prior to the belt change the engine didn't vibrate at all. It ran smoothly. Would the plug gap create such a vibration??

The idle was smooth and always is upon first start. All the loom connectors have been WD40'd and made sure connections are good.
All the ignition leads are firmly in place.

When it idles the engine sounds perfect but as soon as I give a bit of throttle it vibrates to such an extent that the steering wheel vibrates!

I have just now put it all back together after checking all the alignment marks and it hasn't changed! I am however if more damage in the past could have happened when the waterpump went?
I've placed my finger on the rim of the harmonic balancer whilst idling and that feels as smooth as ever.
Tom Richards
Goo Roo
nsw
V8

Posts: 1407
Reg: 08-2005

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Monday, February 25, 2013 - 07:44 am, by:  Tom Richards (Tomr) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

double check the firing order. you may have a plug lead wrong.

http://www.planetsoarer.com/lead/lead.html
John Street
TryHard
NSW
UZZ 31

Posts: 301
Reg: 08-2005

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Monday, February 25, 2013 - 04:57 pm, by:  John Street (Rex2ce) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Michael,
If none of the above advice fixes your problem, might be worth comparing your harmonic balancer to the one in this link to see if it has separated when you removed it.
http://alscforum.com/discus/messages/121/26433.html?1359988689
Cheers
Michael Ireland
Newbie
West Midlands
Soarer UZZ31 V8

Posts: 3
Reg: 02-2013

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Monday, February 25, 2013 - 08:41 pm, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks again guys!

I think what I'm going to do over the next couple of days is remove the spark plugs and check the gap. I replaced them originally with NGK BKR5EIX-11 of which I had been informed where of the correct gap to start with. While the plugs are out I will do a compression test on each of the cylinders and if all that pulls through then I'm going to remove the harmonic balancer and recheck that again by putting it on a lathe and spinning it at different speeds to see if it vibrates or falls apart!

The ignition leads are the correct way round as I never actually removed them out of their relative clips so they just naturally sat in place.

I'll keep you posted on what I do and if the problem eventually presents itself!

Cheers again.
Tom Richards
Goo Roo
nsw
V8

Posts: 1409
Reg: 08-2005

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Monday, February 25, 2013 - 09:11 pm, by:  Tom Richards (Tomr) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

i would actually check the leads, not just believe they are correct
Jamie Richards
TryHard
St.john's
v8

Posts: 205
Reg: 06-2009

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Tuesday, February 26, 2013 - 06:47 am, by:  Jamie Richards (Nwb40gt) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

you should check the leads for any leaks, they might be correct but leaking
Michael Ireland
Newbie
West Midlands
Soarer UZZ31 V8

Posts: 4
Reg: 02-2013

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Friday, March 01, 2013 - 07:58 pm, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

You know I love forums!

Help from everyone has been bang on and muchly appreciated!

So, I removed all the ignition leads and ran a multimeter through them. One coil-pack lead was resisting at around 5000 ohms (just in) and six of the cylinder leads had no continuity!!!!! (Must have been arcing)

I reckon there's an issue!

I've ordered a new set which here in the UK has stung me nearly 130 quid. (About $190 AUD (Best price I could find with the correct serial code)). Will be worth it though I hope!

Thanks again everyone!
Matthew Sharpe
Goo Roo
North Island
JZZ31

Posts: 6836
Reg: 10-2005

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Monday, March 04, 2013 - 12:40 pm, by:  Matthew Sharpe (Madmatt) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Pretty decent price for a 1UZ-FE set.
Daniel Marshall
TryHard
QLD
V8 UZZ31 X2

Posts: 365
Reg: 07-2011

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Sunday, March 17, 2013 - 09:15 pm, by:  Daniel Marshall (Ydass) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

so have you fixed this yet?
have similar problem. i was thinking coilpack.
Michael Ireland
Newbie
West Midlands
Soarer UZZ31 V8

Posts: 5
Reg: 02-2013

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Friday, March 29, 2013 - 10:54 pm, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hey. Sorry it's been a while. I eventually got my leads a month longer than they should have been. Started it and it ticked over just fine but the warning light saying the 'Alternator Not Charging Battery' bonged! I checked the voltage at the battery terminals and they're reading just over 14v so the alternator is working fine!

I took it round the block to see how it ran and it has no power! Even had to kick down to increase the speed slightly! It's now worse than when I had the old leads on!

With regards to your post Daniel, how do you check the coilpacks?

Cheers all.
Tom Richards
Goo Roo
nsw
V8

Posts: 1460
Reg: 08-2005

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Saturday, March 30, 2013 - 08:04 am, by:  Tom Richards (Tomr) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

measure the primary (the 2 leads in the plug)

it should measure 12,000 ohms (12k)


from either of those to the HT out should be close to zero ohms
Michael Ireland
Tinkerer
West Midlands
Soarer UZZ31 V8

Posts: 6
Reg: 02-2013

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Friday, April 19, 2013 - 11:03 pm, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

All coil packs are fine cheers.

Now I have reordered another set of ignition leads from Australia as the ones I got over here were bloody awful, my car isn't fixed!

I have a warning saying my battery isn't being charged but the volt meter is saying there's about 14.5 volts so it is charging.
The Catalytic Converter light is showing.
The car runs on limp-home mode.
The rev counter only shows what revs I am doing when the accelerator pedal in pressed. Zero rpm when idling yet the engine is going.
A noticeable rattling sound coming from under the car around the back/bottom of the engine area. (Quietens when revving).

Getting a bit worried about this! Please help if you have any ideas because it is a lovely car and I'd hate to scrap it!

(Could it be my catalytic converters as it hasn't been running on all cylinders for a while?)
Jamie Richards
TryHard
St.john's
v8

Posts: 207
Reg: 06-2009

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Saturday, April 20, 2013 - 06:05 am, by:  Jamie Richards (Nwb40gt) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

yeah get the cats checked, & get that alternator rechecked
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 12478
Reg: 11-2004

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Sunday, April 21, 2013 - 02:49 am, by:  Peter Nitschke (Pen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

PS pump leaking into the alternator causes the Cat light too.
Michael Ireland
Tinkerer
West Midlands
Soarer UZZ31 V8

Posts: 7
Reg: 02-2013

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Wednesday, June 12, 2013 - 12:51 am, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Just received a new alternator for my Soarer this morning from America and the pulley's circumference is 10mm bigger (not too much). Would that make a difference?
Tom Richards
Goo Roo
nsw
V8

Posts: 1555
Reg: 08-2005

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Wednesday, June 12, 2013 - 07:55 am, by:  Tom Richards (Tomr) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

if the belt will go on its ok.
Michael Ireland
Tinkerer
West Midlands
Soarer UZZ31 V8

Posts: 8
Reg: 02-2013

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Thursday, June 13, 2013 - 10:13 pm, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Okay. I will thank everyone again for help over the last few months but now I have fitted a knew alternator nothing has changed. There is still a warning light saying the alternator is not charging the battery and it is still running on limp home mode.

Any more ideas anyone?

Cheers, Mick.
Michael Ireland
Tinkerer
West Midlands
Soarer UZZ31 V8

Posts: 9
Reg: 02-2013

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Sunday, June 16, 2013 - 07:22 pm, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Tom Richards wrote on Saturday, March 30, 2013 - 08:04 am:

measure the primary (the 2 leads in the plug)

it should measure 12,000 ohms (12k)


from either of those to the HT out should be close to zero ohms




When I test this I get the readings the other way round. The two plug pins are at zero and either plug pin to HT out is approximately 12,000 ohms.

Is this correct?
Tom Richards
Goo Roo
nsw
V8

Posts: 1562
Reg: 08-2005

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Monday, June 17, 2013 - 07:31 am, by:  Tom Richards (Tomr) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

sorry, you are correct,primary between the 2 pins is 0 ohm, secondary winding, pin to ht out is 12k ohm
Michael Ireland
Tinkerer
West Midlands
Soarer UZZ31 V8

Posts: 10
Reg: 02-2013

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Friday, June 21, 2013 - 08:50 pm, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

IT'S FIXED!

I wouldn't have figured it out on my own!

Firstly the spark plugs were the wrong ones. I had NGK BKR4E and they should've been NGK BKR6E. Secondly one of the coilpacks (even though I had tested them off the car and were fine) had a corroded bracket which acts as a heat exchanger and wasn't heat exchanging so the coilpack was overheating and breaking down as soon as the car was started. So it only ran on 4 cylinders.

This in turn put unburnt fuel into the Catalytic converters and has broken them down which although isn't too much of a problem (they glow and cause a bit too much back pressure) and can still drive the car. It still needs new cats (or the removal of them). BUT... It has the old power back again!!!
Michael Ireland
Tinkerer
West Midlands
Soarer UZZ31 V8

Posts: 11
Reg: 02-2013

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Friday, June 21, 2013 - 08:51 pm, by:  Michael Ireland (Mrmick) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

A very big thanks to
http://www.thor-racing.co.uk/
Matthew Sharpe
Goo Roo
North Island
JZZ31

Posts: 6866
Reg: 10-2005

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Saturday, June 22, 2013 - 03:57 pm, by:  Matthew Sharpe (Madmatt) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Great result.

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