Engine rebuild.

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Re: Engine rebuild.

Postby Mervyn Spencer » Tue Apr 23, 2019 8:53 pm

Thank you gentlemen for your responses and links. I do like the Clarke stand, as you say Jerry no problem setting up and very easily dismantled for storage. I shall look around at our dealers and see what compares.
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Re: Engine rebuild.

Postby Mervyn Spencer » Mon May 06, 2019 2:08 pm

Hi folk,
I have located a dealer who sells engine stands one that can carry up to 450 kg. and of Chinese manufacture. We do not have a Clarke dealer in South Africa and to order a stand from overseas is just not worth it as I can't see myself using the stand more the twice. Does anyone know how heavy the Dexta block is including crank, pistons and head although the head can be placed once the engine is in. The main reason for the purchase is to make it easy for me to fit the sump over the cork gasket correctly, unfortunately my age is catching up on me :wink:

I am expecting my engine to be completed this week, but before I can put every thing together I need to do a bit of painting e.g. sump, timing gear housing, cover and the starter and generator plus other minor items, oh! and the front axle assembly. Which brings me to the next issue how do you flatten the previous coat of paint on cast pieces e.g. sump and front axle parts? Previous paint was synthetic enamel same as what is going to be used this time round but a slightly lighter shade.
Thanks Mervyn.
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Re: Engine rebuild.

Postby Mervyn Spencer » Tue May 07, 2019 3:05 pm

Engine ready to be picked up on Thursday, and engine stand to be delivered in a couple of days time,so excited :clap:.
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Re: Engine rebuild.

Postby Old Hywel » Wed May 08, 2019 9:02 am

Re your earlier comments about replacing the starter motor, mine has been fitted with the complete starter from a Landrover 2.5 tdi.
There isn’t much clearance for the steering rod/radius arm, but works well enough.
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Re: Engine rebuild.

Postby Mervyn Spencer » Wed May 08, 2019 10:47 am

Thank you for your advice "Old Hywel" very useful idea. I will se if I can lay my hands on one.
Regards Mervyn.
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Re: Engine rebuild.

Postby Mervyn Spencer » Thu May 09, 2019 7:15 pm

I picked up my engine block this morning all nice and clean after a acid bath and new sleeves and piston etc. The fact that the block was acid bathed and virtually stripped of paint means that I will now have to give it a coat of primer and under coat before the base coat. My question to those who had their engines re built did you paint before or after fitting the engine back?
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Re: Engine rebuild.

Postby Jerry Coles » Sat May 11, 2019 5:31 pm

Hi I painted most of my block especially those areas covered by other items fitted later. This includes behind the starter motor and the fuel injection pump. where gaskets are expected to be positioned leave them bare metal.
I rebuilt mine over 12 years ago and had it out to top my neighbours field yesterday. A six foot topper and high weed made it cough a few times but still pleased with the performance.
Cheers
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Re: Engine rebuild.

Postby Mervyn Spencer » Mon May 13, 2019 10:06 am

Hi Jerry, thank you for your advice and agree that those areas mentioned are important. I suppose it is forgiving for your Dexta to have a couple of coughs working in such long grass, I think we as humans would also cough a bit walking through it :lol:
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Re: Engine rebuild.

Postby mathias1 » Wed May 15, 2019 8:39 pm

with brush or spraygun? I got my engine now almost to the bare metal. There are a few spots where the wire brush can't get the paint off. I guess I will install the engine without starter and injectionpump and give it a paint job at that stage.
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Re: Engine rebuild.

Postby Mervyn Spencer » Sun May 19, 2019 4:51 pm

Image
As can be seen I have used the 4 corresponding bolts to secure the engine stand head to the block. I have no other alternative but to use that method. I would like to get longer bolts possibly grade 8 or 5 about 50mm in length and pick up the slack using washers. Please guys those who are the fundies(clever okes) am I doing the right thing?
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Re: Engine rebuild.

Postby mathias1 » Sun May 19, 2019 6:39 pm

Mervyn,

I got the same problem for the major.
maybe this can help, I made a piece to fit between the engine stand and the engine:

Image
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Re: Engine rebuild.

Postby Mervyn Spencer » Mon May 20, 2019 7:57 pm

Hi Mathias,

I see so, I must say I did cut myself two lengths of square tube but had a senior moment on how to resolve my problem. Today after I levelled off all the chips and scratches from my adaptor plate the one between the bell housing and engine block which I was going to paint before re fitting it, decided to bite the bullet and fit it to the engine block. Wow what a job that plate is rather heavy, but eventually got the dowels in place and my problem was over. After fitting the six 3/8th bolts I tried the engine stand head and was able to get two top head tubes nicely positioned like you did Mathias but the bottom ones were just too short. So hopefully tomorrow I can make a similar plan to you Mathias. Wish me luck!
Will see if I can get a picture of my efforts tomorrow. Sorry about the long story, "it is what it is". 8)

Mervyn
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Re: Engine rebuild.

Postby Mervyn Spencer » Tue May 21, 2019 7:21 pm

Image
Just need to buy two longer bolts for the bottom tubes, what is there currently are temporary thin threaded bar.
Mathias, thank you for your picture yesterday it really helped me with my setup. :buddies:
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Re: Engine rebuild.

Postby mathias1 » Wed May 22, 2019 4:46 pm

Mervyn Spencer wrote:Image
Just need to buy two longer bolts for the bottom tubes, what is there currently are temporary thin threaded bar.
Mathias, thank you for your picture yesterday it really helped me with my setup. :buddies:


Good job! Nice to see I was able to help you out a bit.
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Re: Engine rebuild.

Postby Mervyn Spencer » Wed May 22, 2019 7:32 pm

Image
I'm impressed with the strength of the engine stand no bowing just firm.

As it is notable the block had a acid bath before the new sleeves, bearings etc. were fitted. Now my issue is to wipe down the block to rid any oil etc. with out getting degreaser onto the pistons and mating surfaces, this also applies to the head. I think I will hand paint the block with primer and once the paint on the head is flattened fit the head and spray with my synthetic enamel. Any suggestions are welcome.

Mathias, I'm still trying to work out what you used as the cross piece, is it some channel iron?
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Re: Engine rebuild.

Postby mathias1 » Thu May 23, 2019 7:09 am

[quote="Mervyn ]

Mathias, I'm still trying to work out what you used as the cross piece, is it some channel iron?[/quote]

It's just an I beam, I cut off a bit on the back, so it will go flush with the engine
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Re: Engine rebuild.

Postby Mervyn Spencer » Fri May 24, 2019 9:14 pm

Looking at my picture can anyone see where I messed up with the engine mounting head, what an idiot I am. :cry:
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