Honda CB750 Engine Removal | Cafe Racer Project | How To Remove a Motorcycle Engine From Frame | 04
Honda CB750 Engine Removal | Cafe Racer Project | How To Remove a Motorcycle Engine From Frame | 04
In this episode, I removed the engine from my CB750 Cafe Racer project bike.
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When I ran the engine I could see that there were some issues. There was definitely oil leaking from the top of the engine, and it seemed like either the head gasket was blowing, or more likely the headers weren’t sealed correctly.
I tested the engine again, and I could clearly see that oil was dripping from the cylinder head. I am not sure if this is from the head gasket or some of the seals in the rocker box. Either way I am going to have to strip most of the top end.
I know that the CB750 engine weighs around 80KG or 180lbs, so it wasn’t just going to slip out. I have seen a number of different ways to remove this engine, frequently using some bar over the back of the engine with 2 people to lift it.
I have some old seat belt webbing which I use to tie around heavy items I am trying to lift. It is soft enough to hold humans so it shouldn't cause any harm to an engine.
In hindsight, I think we made this look harder than it was. Next time I wouldn’t bother using the wood. I think there are sufficient places to hold the engine without using an extra bar.
It was a bit of a struggle, but now we know how it goes I am sure we could have it out much easier. I am no more concerned about how I will put it back. I will have refinished the frame then, so I don’t want to chip the paint.
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Пікірлер: 45
Ill be doing the same thing later this month on a 1981 750 DOHC and painting the frame as you did. You looked like it wasnt too painful taking it out. Good job.
It's always great to see that you have posted another video and they are highlights to watch. Looking forward to follow your Honda project. Greetings from Sweden! 👍
Love a good update! 😄
Gloves make a heluva difference. Your hands suddenly become much stronger. Tidy your workspace, create as much space as you can before you start work and take your jacket off cyz you'll get really hot. I've taken dozens of engines in and out of bikes. Usually on my own. Good work lads.
Teamwork!!!
When putting the engine back in, I used old t shirts taped to the frame & it stopped any scratches to the frame, great stuff 👍
It was a really cool video! Congrats!
Hi Les, when you put it back in lay the engine on its side, lower the frame onto the engine and put the fasteners in, then tip the frame upright, absolute doddle and you won’t scratch the frame.
Good to see you got it out. That's exactly how I did it - although I used ratchet straps which you can nip up much tighter with the wood strapped under the carb side intakes - and gives you quite a bit more control. Also maybe make the piece of wood slightly longer so you can have one person each side of the bike and feed the engine through while both supporting the weight from both sides. Look forward to the next installment. By the way - can I ask what model bike stand that is and do you recommend?
Possibly heads been off and reassembled without a new head gasket but who knows I’m just an armchair mechanic. Great video👍🏻
I just removed a 4 cilinder myself. The question is now, as it is very heavy, how do you work on it? Just from where it is lying on the support on the ground? How do you do it ? I'm trying to figure that out lol
why do you say "it definitely wet sumps" when you drained the oil? because of how clean the oil was? how smooth it drained? cheers and thank you
Great channel, are you still wanting a 4 in to 4 exhaust? I have one that needs to go asap or it’s probably going to the dump
hey man! what kindve wiring harness do you have ?