Ive had a 79 R45 for 34 years i bought it for £75 as a none runner, it had an exhaust thread repaired but hadn't been reassembled, it was stuffed in the back of a carport with blue paint poured over the tank, i recommissioned it into a runner for £200 but it was so slow i decided to put a R100 engine in it , well that livened her up! I've done 300,000 miles on her, been to dozens of bike rallies, toured the alps , had numerous crashes, what a brilliant motorbike, a lifetime companion, she looks like a pile of junk but everything works, I'll never sell her

Just found this channel. Great content. But. I want more ….

@montmoto

Жыл бұрын

Welcome aboard! More coming.

Bear in mind that one of the oil pan screws is a little shorter than the others and it's the one that goes under the oil filter tube....it's kind of important as it's possible to seriously mess up your engine if you don't notice...

Irish guy in Cork just about to guy an R100. Great content 👍😊

Hey guy. Very good station- I love it. Well done and spoken. I put the kit into my R45….. Phantastic, new bike with good power. I can tell everybody- this is a very good invest. Much greets from Germany! DUDE II🐍

@montmoto

2 жыл бұрын

Thanks for the kind support Jochen and glad to hear the Siebenrock worked out well for your R45 build. I’ve got plenty more content in the works so stay tuned 😀🤙🏻

It is a good idea to lockwire the bolts that hold on the oil pick-up. If the oil pick-up drops off then your engine will be sucking up air even though you have a sump full of oil with catastrophic consequences. I like the look of your oil pan extender but I simply used an '81 spec sump on my R90/6 instead which also gives increased oil capacity. I did have to modify the centre stand to clear it though

@montmoto

Жыл бұрын

Sounds like a sweet way to get extra oil without paying a lot. Good idea. Thanks for sharing.

Did a similar build restoration with a r90 off of eBay . Took 2 yrs and lots of $$$. Curious to know how much of a difference the power kit makes? Hp ? Good video

i installed one on my R100Rt mono , and it gave me nothing but problems with oil leaking , even though i tried numerous fresh gaskets and correct torques , checked its level on a piece of glass and it wasn't true , ended up removing it , had no problems running without a oil cooler due to there no longer being a fairing so engine is truly air cooled , other than that i purchased another seibenrock product , piston and barrel kit and that is perfect , maybe i just got a dodgy sump extender , but its a lot of hassle , keep taking it on and off checking for leaks etc

Hello! Thank you for share this very usefull info and videos. I have a BMW R80 1985 and I want change the original shock abosorber for Öhlins S46DR1, do you know if that model work well for this type of motorcycle? Any info or recommendation about it I really appreciate! 🫶🏻 Heide, from Chile

I have one of these (not a Seibenrock but the same basic doohickey) on my R100R. It's great - you can fit more oil, which is a plus and helps cool the bike. I also added a horizontal baffle (I can't remember the part number etc, sorry), which was recommended to me as a way to reduce the oil sloshing around in the more 'cavernous' sump and allowing air into the oil intake... Can't say if it makes any difference, but so far (10 years or so since rebuild) the engine is running perfectly...

@montmoto

Жыл бұрын

Thanks for sharing. Sounds pretty cool. And glad it’s lasted you 10 years since the rebuild. Can’t really beat that. 😀

Yes the Seibenrock kit is well worth for bikes that no longer have OEM parts available especially old air heads, also you should get the heads reconditioned.

@montmoto

Жыл бұрын

Heads are already done. Will do a video on them. 👍🏻😊👍🏻

Nice video! I'm getting ready to put the seibenrock 1000cc up grade on mine and a larger oil pan..😊

@montmoto

Жыл бұрын

It’s going to be epic. Take pics!!!

@KimMoonbmwmoonie

Жыл бұрын

@@montmoto i opted not to add the larger oil pan. I need to move my center stand apparently and I'm not overly sold on .5 liters making a huge difference. I did remove the pan and clean everything before running any oil through the new pistons. I got them installed yesterday. Now on to rebuilding the carbs. Thanks again for the video.

Excellent video Marcus! I’m new to your channel. I liked the R Ninety T but for me it lacked something so I’m in learning-mode to see what can be achieved using an older airhead bmw. Nicely pitched commentary and excellently lit photography. I realise I’m a bit behind so looking forward to catching up!

@montmoto

Жыл бұрын

Thanks Endo. Super encouraging. Starting up again soon.

@endo9913

Жыл бұрын

@@montmoto Looking forward to that Marcus!

Do you get a new dipstick with the extension? If you only add .75 liter to the total extra volume of the extension (1.3 l), how do you measure it?

Too bad you stopped making these videos. They were super helpful. 😢

@montmoto

Жыл бұрын

Thanks for the encouragement Christopher. I’m thinking of starting back up again.

@tyronealfonso

Жыл бұрын

@@montmoto Please do. Love your chill and friendly but no-nonsense style.

Nice pice of gear, but I have a 1978 R80/7, 54,000 miles on the clock and the hone marks on the bores are still there, its mechanically in an amazing condition, the ony reason I pulled the cylinders off was to replace the push rod tube seals, am leaving the engine stock. It will more than likly out live my F800gs.

@montmoto

2 жыл бұрын

Sounds like a great bike. Have always considered getting a F800GS. The F850GS is pretty epic too.

Did your centerstand work with the Siebenrock oil pan extender? I've heard that some bikes will have some clearance issues.

@montmoto

8 ай бұрын

Haven’t got that far yet. Put the build on hold but starting up again soon.

Do you not need to change the cam with these?

How much extra oil did you put in? The website says an extra 1.3 litre can be used. But when you get the extender, the inside leaflet says 0.75l extra oil. The difference is quite big

@davidwarren9204

Жыл бұрын

I recall that the extender itself has an internal volume of 1.3(?)L, but that you don't need to add a full 1.3L to the bike. Rather, you add about half of that amount(ie the 0.75L) , giving you more oil volume AND more crankcase volume (ie the air above the oil, in the top of the engine). The increased crankcase volume (which gets compressed and decompressed with every stroke of the engine) results in a lower pressure differential, which reduces heat, parasitic drag on the engine, and blow-by from the breather vent. At least that's the theory :)

Hey, great videos! Do you plan to go on with them?

@montmoto

8 ай бұрын

I do. I’m sorry it’s taking so long.

Love the videos …. But what happened? Where’s the rest?

@montmoto

8 ай бұрын

They’re filmed. Just need to find time to edit them. Sorry for the delay.

where is the rest of the build? :)

@montmoto

8 ай бұрын

Working on it. Sorry it’s taking so long

where is the pt2 for the engine build?

@montmoto

8 ай бұрын

I keep asking myself the same thing. I need time to edit. Kids and work.

How’s the build coming along?

@montmoto

8 ай бұрын

Slowly. I need to find more time for this.

Where'd you go?

@montmoto

Жыл бұрын

Sorry buddy. Life got busy. Planning to start up the video making machine again next week.

This fellow may be a skilled mechanic … but his decision to butcher that fine old bike shits !

@duncanmacpherson2013

Жыл бұрын

Agreed

So there goes another classic mechine and here's another abortion 😢