Injectors

Submitted: Saturday, Feb 04, 2006 at 16:07
ThreadID: 30417 Views:2901 Replies:7 FollowUps:10
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I have an '89 toyota HJ75 with a 2H engine, 4.2litre diesel, whihc has been reported to the EPA. i Figure the injectors need doing, anyone know an approximate price for this sort of work?
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Reply By: Peter 2 - Saturday, Feb 04, 2006 at 16:12

Saturday, Feb 04, 2006 at 16:12
You can pull them out and get them done or take them to diesel place and have them done. The 2h injectors are rebuildable usually unless very badly worn.
A cheap and dirty solution to your problem (excessive smoke I presume) is to fill it with biodiesel and take it for a run, no smoke and it should pass an emissions test, but a bit naughty and as soon as you put dinodiesel in the smoke will be back.
whereabouts are you located so people can refer you to local diesel place?
The other way to go is to buy exchange/reco injectors.
Peter
1996 Oka Motorhome

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AnswerID: 152957

Follow Up By: LisaH - Sunday, Feb 05, 2006 at 22:54

Sunday, Feb 05, 2006 at 22:54
Thanks Peter,

I'm in Melbourne's northern suburbs, if you have any recommendations.

I'd never heard of the biodiesel untill recently, and can't say I've ever seen it on sale. Might keep a look out for it, particiularly if it's cheaper, like someone suggested in another query.

Lisa
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Reply By: Gerhardp1 - Saturday, Feb 04, 2006 at 17:58

Saturday, Feb 04, 2006 at 17:58
You could try the CEM products to clean out your rings etc and use their fuel additive.

This could do the trick.
AnswerID: 152978

Follow Up By: LisaH - Sunday, Feb 05, 2006 at 22:39

Sunday, Feb 05, 2006 at 22:39
Thanks Gerhard, I was recommended and given an additive from my mechanic who swore by it. It doesn't seem to have made a blind bit of difference though.

Thanks tho.

Lisa
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FollowupID: 407140

Reply By: Member - Ian H (NSW) - Saturday, Feb 04, 2006 at 19:09

Saturday, Feb 04, 2006 at 19:09
I think if the injectors have not been done for 100000k's then it is well worth the investment. It will go better and use less fuel. And no black smoke.
AnswerID: 152994

Reply By: kesh - Saturday, Feb 04, 2006 at 19:17

Saturday, Feb 04, 2006 at 19:17
The 2h injection pump is both centrifugal governor and diaphragm controlled. The diaphragm on these (now a wee bit elderly) are known to split to give the sort of over fuelling (excess smoke) problems you describe.
Unless you know how to pull the end off the pump, take it to an injection bloke who can.
Non of these things are difficult, but you need the tools and to have been there before.
My opinon - 2h- bloody good engine.
kesh
AnswerID: 152996

Follow Up By: Member - Bill S (NSW) - Saturday, Feb 04, 2006 at 20:23

Saturday, Feb 04, 2006 at 20:23
YEA YEA HA HA HA,YIBY YI YO Wear it and suffer.

BILLS
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FollowupID: 406865

Follow Up By: Leroy - Saturday, Feb 04, 2006 at 21:44

Saturday, Feb 04, 2006 at 21:44
you're a cockhead mate. If you're not going to make a constructive response then go stick a fitch up your ass. If your lucky it might prevent you from bull bleep ting or stop heart disease.....

Leroy
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FollowupID: 406887

Follow Up By: warthog - Saturday, Feb 04, 2006 at 22:22

Saturday, Feb 04, 2006 at 22:22
Thankyou Leroy, well said.
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FollowupID: 406898

Follow Up By: Member - Stephen M (NSW) - Sunday, Feb 05, 2006 at 01:26

Sunday, Feb 05, 2006 at 01:26
Go Leroy love it !!!!!!!!! Have a great weekend buddy. Take Care steve M
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FollowupID: 406927

Follow Up By: Member - Davoe (Widgiemooltha) - Sunday, Feb 05, 2006 at 12:29

Sunday, Feb 05, 2006 at 12:29
Hey bill instead of dribbling how about answering the question like this
"Just got my 2h powered cruiser back from the shop (Australian fuel injection centre kalgoorlie) Quite impressed just a bit of smoke under load but pretty good especially compared to the cloads that previosly billowed from the back end. Any way the business.
Labour to R&R injectors, repair governor linkage spring,degrease and road test x2 = $140
Exchange injectors to suit a toyota 2h x6 = $270
Johnny Howards take = $41
=$451"
This is a copy of a post of mine from 2004 and is worth posting as it answers the question
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FollowupID: 406999

Follow Up By: LisaH - Sunday, Feb 05, 2006 at 22:42

Sunday, Feb 05, 2006 at 22:42
Davoe, thanks forthat, expendsive but not outrageous then.

Lisa
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FollowupID: 407143

Reply By: HJ60-2H - Sunday, Feb 05, 2006 at 08:42

Sunday, Feb 05, 2006 at 08:42
Staying in on topic and being helpful:

I had the injectors and pump on my 2H done about 18 months ago by JC Diesel in Sydney. Cost about $800. Dropped the car off and picked it up that night. Would be cheaper if you did bits of it yourself like Peter suggests but hard to do they dyno bit at the end I recko.

Stopped the smoke, engine ran with more power and increased fuel economy by 10% so paid for the work in a year. Well worth doing.
AnswerID: 153067

Follow Up By: LisaH - Sunday, Feb 05, 2006 at 22:50

Sunday, Feb 05, 2006 at 22:50
Doing it myself is not an option but I have a couple of trusted mechanics up my sleave. Who's got the time anyway?
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FollowupID: 407146

Reply By: Member - Davoe (Widgiemooltha) - Sunday, Feb 05, 2006 at 09:21

Sunday, Feb 05, 2006 at 09:21
Injectors are 60-70 dollars each fitted and they will usually have a look at the pump while they are at it so between 4-500 dollars
AnswerID: 153070

Reply By: Member - John L G - Sunday, Feb 05, 2006 at 11:08

Sunday, Feb 05, 2006 at 11:08
Lisa

I would suggest the following three ways to solve the problem which is basically a lack of full combustion in the trusty engine which can be caused by overfueling or lack of air and conversely low compression from worn or clogged rings.

You don't mention if the vehicle performs as usual or has become sluggish but the following would still apply

1. Before doing anything, I would check the air filter to make sure it is clean and free flowing.
These diesels need plenty of air and if the filter is old and or blocked that could be cheap a fix.
I mentioned 'old' as some filters can swell imperceptibly over time and decrease air flow. Dare I say it but some service centres may charge you for replacing filters but not actually do it to maximise their profits,

2. The 2H, whilst a reliable old motor, is notorious for having a problem with clogged rings if not serviced regularly and like wise glazing if not given a good work out every now and then - only you know how it is used!
If the rings are clogged, which can often be the case with diesels not working hard then the commercial clean out of the engine would be the go - its amazing how much sludge they actually are able to remove from a working motor and the system cleans the injectors at the same time however it does not improve worn nozzles.
A good work out in the scrub with high load and plenty of soft sand wouldn't hurt the old girl either.

3. If you have eliminated the above as the problem and its a hard worker I would consider the injectors might need attention however if its a shopping trolly I would immediately look at the air filter, oil change periods and glazing.
Injectors will probably cost $60-100 each and they will always touch you up for a fuel pump rebuild so expect a $1000 bill. If that's the path you go down then have the compression checked when they do the service as the real answer will lie there.

Eliminate the obvious before proceeding to the expensive.

Good Luck

John G
AnswerID: 153090

Follow Up By: LisaH - Sunday, Feb 05, 2006 at 22:48

Sunday, Feb 05, 2006 at 22:48
Thanks John

The air filter is new, the oil filter is new, power wise the truck runs like a piece of bleep under load. I tow horses, and am usually down to 10-20k on the hills with 2 horses on.

If, as the other post suggest, I'll get an increase in power with them done, it is definitely worth the money.

Lisa
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FollowupID: 407144

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