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Some progress with my D8H 36A

Some progress with my D8H 36A

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ArcticCarbon
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Hello all

Some of you will remember my project on acme site. Here's some update that I have gained so far. The goal is to install engine back were it belongs early at next summer.

Here's the first start for this engine for over decade. The Original engine was in really bad shape so I ended up rebuilding another engine. This engine (the better one) needed new bearings, pistons, liners, valves, valve springs.

The pony engine also needed work. The crankshaft was in poor shape, so I welded new material on rear journal and had journals regrind.

The reason we were so extra careful with first start was that the engine was getting fuel with throttle shut of position, later we found out it was only throttle linkage that was causing it, not jammed fuel rack.

http://www.youtube.com/watch?v=7hagGWj3BSA&list=UUriWN8gnm05dOpPEAjjDEHg&index=1
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Thu, Feb 7, 2013 1:36 AM
BillWalter
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When starting a Diesel engine with starting engine, always roll the engine over on compression with fuel shut off. This will allow heat to build up in cylinders. With fuel being injected all your doing is washing down the cylinders. I hope they had the engine full of coolant to cool those combustion chambers. I did not see coolant at regulator housing.
A lot of people need to read their operators manual as to how to "Properly" start an engine. The last procedure is to "open throttle". If the engine does not start, shut off throttle, let starting engine turn engine more with compression on until cylinders have warmed up for fuel to ignite.
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Thu, Feb 7, 2013 6:14 AM
Tim Matthews
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Reply to BillWalter:
When starting a Diesel engine with starting engine, always roll the engine over on compression with fuel shut off. This will allow heat to build up in cylinders. With fuel being injected all your doing is washing down the cylinders. I hope they had the engine full of coolant to cool those combustion chambers. I did not see coolant at regulator housing.
A lot of people need to read their operators manual as to how to "Properly" start an engine. The last procedure is to "open throttle". If the engine does not start, shut off throttle, let starting engine turn engine more with compression on until cylinders have warmed up for fuel to ignite.
Well done ! was wondering how you were getting along , had not saw an update for awhile.
Thanks for the video . You need to hoot and holler with excitment when that engine starts from all your hard work.
Was the install going to be this summer?
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Thu, Feb 7, 2013 9:14 AM
ArcticCarbon
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Reply to Tim Matthews:
Well done ! was wondering how you were getting along , had not saw an update for awhile.
Thanks for the video . You need to hoot and holler with excitment when that engine starts from all your hard work.
Was the install going to be this summer?
Thanks

The manual is well read, but the throttle linkage was stucking and we thought it was in closed position. Engine is filled with coolant and it was circulating in cooland manifold so heads had proper cooling.

We run it until it was in normal temp, about 93C. Do you think that I should retinghten the cylinder head bolts? The shop manual does not mention it at all.


I'm going to install engine this summer. We have snow here until May and I start working on the dozer then.
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Fri, Feb 8, 2013 2:43 AM
BillWalter
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Reply to ArcticCarbon:
Thanks

The manual is well read, but the throttle linkage was stucking and we thought it was in closed position. Engine is filled with coolant and it was circulating in cooland manifold so heads had proper cooling.

We run it until it was in normal temp, about 93C. Do you think that I should retinghten the cylinder head bolts? The shop manual does not mention it at all.


I'm going to install engine this summer. We have snow here until May and I start working on the dozer then.
Since you'll have time before installing and you have easy access, I'd run over them again just to be sure.
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Fri, Feb 8, 2013 5:29 AM
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