What a relief

Submitted: Tuesday, Feb 02, 2010 at 10:01
ThreadID: 75699 Views:1861 Replies:3 FollowUps:9
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Howdy All

I picked the old tray back up yesterday from the exhaust shop after having 2.1/2 inch exhaust and extractors fitted , boy am i a happy man!!

The cruiser was having some problems over heating recently and i tried what i could in the front yard and asked around for different ideas. Got some good feedback on where to start, a silly mechanic told me i needed a new motor!! go figure hey.

On the trip home yesterday at 1300 (kimberley lunch time heat) which is about 100 k's i was doing the usual thing watching my gauges making sure all was good. Got going down the road just waiting for that temp gauge to rise up pretty quick like it has been doing but nope, didnt move a mm over operating temp. Instant relief it was but then i got thinking nah this cant be right so i cranked up the air con and put the foot down a fair bit to see if it would over heat...nope

People always say that there is no difference in power or only minor.when you upgrade to extractors and a larger exhaust but when your motor is as sad as my old girls that little bit extra feels like a whole heap.

For instance driving through the hills in the old girl is always a bit of a battle but i suppose most cars feel the same. She would always drop to 80 from 110 going up the main jump up into town but yesterday she only dropped to 95 from 110 so there must be some sort of difference there

I must say im very happy with what i paid for, should of done it along time ago..


Cheers


p.s she has a sweet note now too ;)
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Reply By: TerraFirma - Tuesday, Feb 02, 2010 at 10:33

Tuesday, Feb 02, 2010 at 10:33
The exhaust and extractors will not stop the engine from over heating so not sure how that is happening, unless you had a blockage or perhaps a bad catalytic converter? Anyway good to hear it's all good
AnswerID: 402234

Follow Up By: Member -Tukka (WA) - Tuesday, Feb 02, 2010 at 11:07

Tuesday, Feb 02, 2010 at 11:07
Dead set?

Well thats why i was confused about it because i thought surely this could not have fixed my problem but you could be right maybe just a blockage some where or the cat was stuffed
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FollowupID: 671696

Follow Up By: TerraFirma - Tuesday, Feb 02, 2010 at 11:11

Tuesday, Feb 02, 2010 at 11:11
Actually correcting myself don't think diesels use a cat converter anyhow so perhaps was some other issue with your exhaust? Have you had the radiator flushed and pressure checked etc.?
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FollowupID: 671697

Follow Up By: Member -Tukka (WA) - Tuesday, Feb 02, 2010 at 11:20

Tuesday, Feb 02, 2010 at 11:20
Yes the radiator was flushed, got a tiny bit of scale out of it but thats about it. The mechanic that i spoke to said all 1hz's with over 300 000 on the clock run hot because number 5 cylinder runs hot but i find that very hard to believe

Also been told to check the oil in the fan hub and change radiator hoses because when they get hot they can suck in and restrict flow.

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FollowupID: 671698

Follow Up By: Member - Mark E (VIC) - Tuesday, Feb 02, 2010 at 12:04

Tuesday, Feb 02, 2010 at 12:04
When did you last have your injectors and fuel system overhauled. This may also be a possible cause.

Cheers,

Mark
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FollowupID: 671703

Follow Up By: Member -Tukka (WA) - Tuesday, Feb 02, 2010 at 12:32

Tuesday, Feb 02, 2010 at 12:32
Not sure when it was last done Mark, i have only owned it for about a year so i would have to ask the fella i bought it from..

Probably wouldn't hurt to get it done then you think?
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Follow Up By: Member - Mark E (VIC) - Tuesday, Feb 02, 2010 at 20:28

Tuesday, Feb 02, 2010 at 20:28
I am no diesel expert but from my reasearch, over fuelling will cause increased exhaust gas temperatures, which is a reflection of engine temps. In my experience of running diesel vehicles (24 years), performance is lost very slowly and with a fuel system overhaul, you may find some more increased performance and the engine may last longer...sounds as though you want to keep it for some time yet... ;-)

Cheers,

Mark
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FollowupID: 671815

Follow Up By: The Boss - Tuesday, Feb 02, 2010 at 21:02

Tuesday, Feb 02, 2010 at 21:02
Yeah so get your injector pump done and new injectors, And then the valve clearances and i'll buy her back off ya. Sounds fair
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Follow Up By: Member -Tukka (WA) - Wednesday, Feb 03, 2010 at 10:11

Wednesday, Feb 03, 2010 at 10:11
25k boss??
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FollowupID: 671903

Reply By: Madfisher - Tuesday, Feb 02, 2010 at 12:37

Tuesday, Feb 02, 2010 at 12:37
Its possible your muffler was blocked up with soot, restricting exhaust flow. Extractors also get rid of heat better out of the combustion chamber. Thats why the cure for valve burning 2Fs was extractors.
For the record when my mate done the same to his troopy he picked up an extra 50ks per tank as a bonus.
Interesting to see if your economy improves. Cols troopy now has over 500000ks on it.
Cheers Pete
AnswerID: 402249

Follow Up By: Member -Tukka (WA) - Tuesday, Feb 02, 2010 at 12:42

Tuesday, Feb 02, 2010 at 12:42
Extra 50ks per tank..not bad at all

Driving home yesterday i couldnt really compare fuel consumption because i was getting up the old girl a fair bit to try make her over heat but i will update the thread when i figure it all out.

I wanted to have a look at the old exhaust to see what it was like inside but i think they hacked it up
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FollowupID: 671711

Reply By: Malleerv - Tuesday, Feb 02, 2010 at 13:51

Tuesday, Feb 02, 2010 at 13:51
A blocked or restricted exhaust on a diesel engine can make them run richer than they would with a free flowing exhaust in the same way a blocked air filter does. And everyone knows a rich running diesel runs hotter. Sounds like you have solved your problem of overheating.

Cheers Matt
AnswerID: 402270

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