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  #21  
Old 11-16-2017, 07:50 PM
RedArrow RedArrow is offline
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Default Before disassembly (d24 nonturbo - 1981)

I'd like to show it bc this green is one of my favourite colours on the d24 engines. It is called John Deere farm equipment enamel.
Pict #5 ---
Disassembly started and 55minutes later all accessories were off including the cylinder head.
Attached Images
File Type: jpg Screenshot_2017-11-16-23-42-14.jpg (26.0 KB, 6 views)
File Type: jpg Screenshot_2017-11-16-23-41-36.jpg (26.1 KB, 4 views)
File Type: jpg Screenshot_2017-11-16-23-41-50.jpg (27.2 KB, 6 views)
File Type: jpg Screenshot_2017-11-16-23-43-21.jpg (17.6 KB, 5 views)
File Type: jpg Screenshot_2017-11-19-17-13-51.jpg (26.4 KB, 5 views)

Last edited by RedArrow; 11-19-2017 at 01:16 PM.
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  #22  
Old 11-19-2017, 01:39 PM
RedArrow RedArrow is offline
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Default Removal of d24 cylinder head

Unfortunately the forum's system could not process high quality high resolution pictures so I had to screenshot the pictures and upload the lower quality ones instead. Too bad. Is there a fix for that??

Anyways...the motor doesnt look good. The head looks toast. And it is chipped at injector #6.
I'll just go ahead and take a couple of measurements to confirm but I assume it is warped beyond specifications.
Interestingly, I don't see the typical cracks though.
To be continued...
Attached Images
File Type: jpg Screenshot_2017-11-19-17-20-36.jpg (23.2 KB, 3 views)
File Type: jpg Screenshot_2017-11-19-17-24-51.jpg (7.5 KB, 2 views)
File Type: jpg Screenshot_2017-11-19-17-28-22.jpg (11.8 KB, 2 views)
File Type: jpg Screenshot_2017-11-19-17-30-09.jpg (12.4 KB, 1 views)
File Type: jpg Screenshot_2017-11-19-17-33-23.jpg (8.9 KB, 1 views)

Last edited by RedArrow; 11-20-2017 at 04:55 AM.
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  #23  
Old 11-19-2017, 02:07 PM
RedArrow RedArrow is offline
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Default Pictures and facts.

I could not find the straight edge to measure cylinder head warpage but the Volvo tool with the dial gauge gave me a good idea about it.
Let's see how the gasket looked.
Ngoma, i tried removing 2 of the headbolts without the suggested punch and yes it seemed much harder that way. Thanks. Good tactics info for the future...On this engine it doesnt matter though...
The gasket is a GOETZE headgasket. That rubber triangle area looked bad and you can see lots of rust at the headbolts (i think they are the result of the punch on the headbolts.

Also, one of the headbolts on cylinder #1 (front of engine) was LOOSE. I think the front of the engine is where the head will be warped the most.
The camshaft has rust and is pitted and scarred like there was water in oil, or like there was thick "sandy" oil used lmao.
Plenty of the valve shims were deeply pitted and chipped a little. I recall doing the valves adjustment appr 2y ago where all* clearances were tight and out of specifications, intake and exhaust included. Also a waterpump with the wrong-quality impeller.

More than one of engine oil passages of the head had 50% of the inner diameter clogged up.

Surface rust existed inside the engine too.
Camshaft bearing surfaces have wear marks too.
A couple of cylinder walls have vertical marks too, ,
Surface rust PLUS there are signs of valve collision with the pistons at more than one cylinder.

At cyl one, I have to check if threads in the block still exist at all.
Also, the cyl head has broken-in bolts at ps pump bracket and there is one where the balancer connects to the engine.
The inj pump pulley has a chipped area too like someone was having it beaten up. Lol.
The front tb area is very rusted too, including the waterpump and thermostat areas where the coolant runs.
I remember doing the belts on it and getting freaked howmuch internal rust it had.

Well, that is exactly why it became the "experimental engine" to learn "the d24 stuff" on.
Many days spent thinking and doing and a lot learnt.

Now I'd say it continues staying the engine for "d24 exercise"
The parts that it donated will make a good deal for my other d24 that also has issues although much less and it does run. But I assume it needs a head gasket. I saw bubbles form in the expansion tank when i ran it for like 45minutes the last time. (1984 engine, nonturbo)

So here's a few pictures.
I hope they serve the volvo diesel community. And also wondering how (if) a chipped injector hole gets fixed. (For those who happen to end up unfortunate on their great condition engine)
Attached Images
File Type: jpg Screenshot_2017-11-19-18-17-23.jpg (21.1 KB, 3 views)
File Type: jpg Screenshot_2017-11-19-18-18-05.jpg (11.3 KB, 3 views)
File Type: jpg Screenshot_2017-11-19-18-18-37.jpg (10.1 KB, 3 views)
File Type: jpg Screenshot_2017-11-19-18-19-12.jpg (9.4 KB, 3 views)
File Type: jpg Screenshot_2017-11-19-18-19-35.jpg (10.8 KB, 5 views)

Last edited by RedArrow; 11-20-2017 at 01:58 AM.
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  #24  
Old 11-19-2017, 02:33 PM
RedArrow RedArrow is offline
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Default More pictures to show condition.

This d24 must have had a really bad life...or a good one but without happy ending.
Attached Images
File Type: jpg Screenshot_2017-11-19-18-25-08.jpg (22.5 KB, 3 views)
File Type: jpg Screenshot_2017-11-19-18-26-10.jpg (9.7 KB, 3 views)
File Type: jpg Screenshot_2017-11-19-18-26-26.jpg (9.0 KB, 2 views)
File Type: jpg Screenshot_2017-11-19-18-26-54.jpg (10.0 KB, 2 views)
File Type: jpg Screenshot_2017-11-19-18-27-23.jpg (23.8 KB, 3 views)
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  #25  
Old 11-19-2017, 02:39 PM
RedArrow RedArrow is offline
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Default Pictures of gasket and other parts.

The parts will be used on the other d24 or engine stays put as one for exercise of d24 diasassembly-assembly. Lol
Learning things before you touch a runner...
Attached Images
File Type: jpg Screenshot_2017-11-19-18-27-55.jpg (29.6 KB, 4 views)
File Type: jpg Screenshot_2017-11-19-18-28-28.jpg (26.6 KB, 5 views)
File Type: jpg Screenshot_2017-11-19-18-25-38.jpg (9.8 KB, 6 views)
File Type: jpg Screenshot_2017-11-19-18-25-08.jpg (22.5 KB, 4 views)
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  #26  
Old 11-19-2017, 03:18 PM
RedArrow RedArrow is offline
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Default Cylinder head pictures

The video shows the head only and it is extremely boring.
https://youtu.be/wBrzH4jNCTc

Pictures show the proper injector tool (new purchase).

Using regular 27mm deep socket I managed to bend the nipples of my 740td's new injectors and 4of them leak now but that is another long story...
Use the right tools and the job gets done faster better safer
I think the regular 27mm sockets dont fit well between the tight space of the injector and the cyl head itself. Because the wall thickness of those sockets is way too thick. Especially the older 6point versions. I think that is how PO chipped the cylinder head.

I also think that this engine spent years maybe decades not running. Now it is becoming a parts donor or maybe stays whole...for experiments and to exercise repairs/maintenance...better than getting junked
Attached Images
File Type: jpg Screenshot_2017-11-19-19-10-22.jpg (27.6 KB, 4 views)
File Type: jpg Screenshot_2017-11-19-19-10-42.jpg (29.6 KB, 2 views)
File Type: jpg Screenshot_2017-11-19-19-12-15.jpg (10.8 KB, 2 views)
File Type: jpg Screenshot_2017-11-19-19-12-46.jpg (23.7 KB, 6 views)
File Type: jpg Screenshot_2017-11-19-19-14-50.jpg (8.6 KB, 4 views)

Last edited by RedArrow; 11-19-2017 at 03:24 PM.
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  #27  
Old 11-19-2017, 03:43 PM
RedArrow RedArrow is offline
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Default Worn d24 for experiments and exercises like this one.


Playing around while I'm waiting for the valve spring compressor tool.

I'll precisely measure warpage afterwards.
By using the Volvo tool I'm looking at roughly 0.2-0.3mm across and 0.3-0.5mm (or 0.6?) lengthwise but it can actually show much worse once measured more accurately.
Attached Images
File Type: jpg Screenshot_2017-11-19-19-30-27.jpg (16.3 KB, 6 views)
File Type: jpg Screenshot_2017-11-19-19-31-51.jpg (27.4 KB, 7 views)
File Type: jpg Screenshot_2017-11-19-19-35-05.jpg (18.4 KB, 5 views)
File Type: jpg Screenshot_2017-11-19-19-35-28.jpg (27.0 KB, 5 views)
File Type: jpg Screenshot_2017-11-19-19-36-51.jpg (37.5 KB, 5 views)

Last edited by RedArrow; 11-19-2017 at 04:31 PM. Reason: Grammar
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