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Message Icon Topic: Gutbrod 1032 engine change Post Reply Post New Topic
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4x4forks
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Quote 4x4forks Replybullet Topic: Gutbrod 1032 engine change
    Posted: 24 Aug 2013 at 7:14pm
I have seen some people have changed the engine on Gutbrod 1032 for a honda unit.
Has anyone done this? What is the standard engine shaft size? and what is involved with a adaptor plate or is one needed?
I have need for slower speed and high torque and think this may be the way to go. I have reduced the rear wheel size .
 
Any advice whould be appreciated.
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Quote 4x4forks Replybullet Posted: 25 Aug 2013 at 10:10am
Hi just found some photos but no details
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GAV694
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Quote GAV694 Replybullet Posted: 26 Aug 2013 at 9:00pm
If your original engine is good the easiest thing to do would be to fit a set of gutbrod reduction hubs to the rear wheels, these reduce your speed to a third and can be engaged/disengaged by removing a pin. The down side of doing this is they tend to be quite expensive.
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wristpin
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Quote wristpin Replybullet Posted: 26 Aug 2013 at 11:49pm
Have you actually compared the speed and torque curves for your existing engine (BS?) with those of the proposed Honda  - doubt if they will be radically different.
If you are going to run any engine at less than its rated governed speed you need to be aware of its torque and power curves or you may be taking it "off cam" and gutless. 
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jtg1
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Quote jtg1 Replybullet Posted: 27 Aug 2013 at 2:05pm
only sensible way do do this is with the reduction hubs. i can assure you when rotovating she will be slower than a snail in first!!!
The impossible i do at once, miracles take just that little bit longer!
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4x4forks
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Quote 4x4forks Replybullet Posted: 27 Aug 2013 at 5:21pm
Has anyone got a pair of reduction hubs for sale?
I,m thinking that more horse power has got to be better and even off cam will be a improvement.
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wristpin
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Quote wristpin Replybullet Posted: 27 Aug 2013 at 7:12pm
Originally posted by 4x4forks

Has anyone got a pair of reduction hubs for sale?
I,m thinking that more horse power has got to be better and even off cam will be a improvement.


If I am interpreting your thinking correctly your theory is not correct. Horsepower is the expression of the ability to do work and one of the factors used to calculate it is the speed of the engine (number of power strokes per minute). Reduce the rpm and you are sacrificing horse power. The reduction hubs are the way to go so that the engine runs "on song".
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Quote GAV694 Replybullet Posted: 30 Aug 2013 at 12:18pm
Originally posted by 4x4forks



Has anyone got a pair of reduction hubs for sale?
I,m thinking that more horse power has got to be better and even off cam will be a improvement.


They appear every now and then on ebay etc but are quite sort after so make good money. if anyone has two sets I'm also after some but then I still need to find a rotovator also so no rush for me

Is it rotovating your doing 4x4?
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Quote 4x4forks Replybullet Posted: 31 Aug 2013 at 2:23pm
No, I use mine for moving my 22ft caravan. Looks a bit odd but she is far more manouvereable than a quad bike or a discovery. I do use it for ploughing  with hydraulic rear lift arms and mowing.
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Quote Dieselhead Replybullet Posted: 31 Aug 2013 at 4:13pm
Forum member Wesley has a good collection on Gutbrods. He maybe able to help. May take him a while to respondLOL
 
Chester Hudson may also have some bits your after
Chris. I aint getting on no plane. Fool!
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Quote 4x4forks Replybullet Posted: 06 Oct 2013 at 9:15pm
Well just an update.
The new engine is in!!!!! still alot of adjustments to make but I have driven it back and forth in the workshop and boy what power at low revs. This is what I wanted. The change hasn't been that straight forward but coming together now.
If anyone is interested I have a good working dinostarter and a good working engine minus end clutch casing.I will post some photos of the change soon
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