Lots to be doing.

Questions regarding the DR750

Re: Lots to be doing.

Postby BigBob » Fri Mar 13, 2020 6:05 pm

I stand corrected. I must have missed your post.
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Re: Lots to be doing.

Postby H_Lime » Fri Mar 20, 2020 12:12 am

Small progress

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The blue bikes getting jealous.
Hesslers polished stainless header. Didn't know it was hole shot. It's nice. Eager to see how she fits.
The original was rusty but seemed serviceable. My concern was the connection to the link pipe area had corroded badly enough and might have failed in use.
The Di is bigger, must measure it, but it steps down for the connection. The weld at the head is nicer than the original. The Dr650 owners obsess about grinding back this weld for gains. Some over do it and she cracks there.

So the top end is off a survival orange bike and was rattle canned with gay abandon by the previous owner. Its messy and very difficult to remove from the finned areas.
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I want it back to alloy or at least to a keyed original colour to prime over and paint.

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Queue drapers finest. That will do me as a base for a couple coats of primer.
It works well but eats through the capacity of my compressor and also through media. I bought a 25kg bag of fine grit and used about 4 kg of it.

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Way quicker than a wire wheel and gets all the nooks and crannies. Flash rusts like a bastard tho. Very happy with it tho and will get a blasting cabinet so gretta doesn't sh1t herself.

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Airlined the every living crap out of it afterwards and washed it five times just to be sure to be sure.

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How wonderfully Miami vice/magnum pi 80's fluro red :clap: They'll look brill on her, would want to at that money.
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Re: Lots to be doing.

Postby BigBob » Fri Mar 20, 2020 9:17 am

I`ve had a Holeshot on one of my Bigs for years. The metal thickness is less than the original and other s/steel header pipes.
If you leave the bike ticking over for any length of time in the dark it will start to glow red.
Bit worrying at first but never caused me an problems.
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Re: Lots to be doing.

Postby H_Lime » Mon Mar 23, 2020 12:22 am

I see Hesslers site mentions the same Bob, must be impressive at night :D
I got the most of the engine back together sat nigh. Went well. I'd invest in another torque wrench next time, one with a narrower range for lower pulls.
One cylinder head cover bolt (inside the valve port, exh side) seemed to behave like it would ring. I didn't provoke it, still tight at the min of the range.

I didn't understand the need to temporarily tighten the cylinder base bolts but I followed the bible.

Do you use 3bond on the cover mating area next to where the cam is held? Thought about it, it could squeeze out and block the small oil ways in the journal. I gave this area the slightest smear and not next to the journals. Looking back my pics make it look like I lathered it on everywhere but it's thin, I used a small artist brush and got the barest ooze outside after torquing everything down.

When I pulled that string the CCT zapped out and the engine turns over well with a wrench. Thanks for all the help, much appreciated.
Valves next.

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New oe clutch release bearing arrived.

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Good tip Dave :tup:

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Pin at one oclock, flywheel aligned and cam end engravings aligned with cover.

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New locking ring.

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Re: Lots to be doing.

Postby BigBob » Mon Mar 23, 2020 10:31 am

:tup: :tup:
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Re: Lots to be doing.

Postby notags » Mon Mar 23, 2020 1:20 pm

Hi,
That header looks good,may I ask how much it set you back?
Many thanks.
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Re: Lots to be doing.

Postby H_Lime » Mon Mar 23, 2020 3:00 pm

notags wrote:Hi,
That header looks good,may I ask how much it set you back?
Many thanks.

http://www.dr-big-shop.de/BIG_Auspuff_142.html
:tup:
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Re: Lots to be doing.

Postby ladder106 » Wed Mar 25, 2020 5:43 pm

Well done.

Finish up just in time for spring and solo riding on our enforced “holiday”
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Re: Lots to be doing.

Postby H_Lime » Thu Mar 26, 2020 1:01 am

Ray, the weather out here the last couple days is superb and I've used the capo and Dr to commute.
So good to pull on the lid and shut out all the drama.
Ps: cheers for the kick up the arse to do the engine work :tup:

Plan was to paint the engine myself with 2k. A first for me.
But I've been put wide to the dangers of exposure of 2k isocyanates, which is no joke. Mere skin contact can have drastic effects. There's lots of have a go lads like myself after being stung so I'm bowing out.

I rang the fella who painted big blue, he has a slot Saturday **if i have all prep done**
Getting this done in time does not suit for myriad reasons at the mo but who the feck knows when I'll get a slot again with the plague :? , so I'm putting in a couple hrs ever night despite really not wanting to.

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Plug holes have plugs in and then packed with cloth and blanked with stacks of these.

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Rubber glove with cloth packed in squeezed in then three of these blanking caps pressed in and held in place.

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Rubber grommet covering seal.

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Three of these made with a card gasket and three bond.

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Tomorrow I will mask the rocker cover and blast in this as I'll probably get through about 10kg of media and I want to re use it after sifting.
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Re: Lots to be doing.

Postby ladder106 » Thu Mar 26, 2020 4:44 pm

You’re going to make it too pretty to ride in the rain.
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