Hi all, one for the techies. I think my bike may have eaten a bit of one of its rings whilst in the Pyrenees last week My last multi did this at around 13000 miles, so I have an idea of what it feels and sounds like. Long story short, it now 'tinkles' above 7k revs (so I avoid this), and burns oil / smokes. I can also smell hot oil, which I am assuming is from the air recirculation box due to blow-by. I haven't stripped anything yet. I want to do a compression check first, and maybe a quick look in the bores with a boroscope. I will also drop the oil to see what is in the sump. So now the questions: 1) are any specialist tools required to remove heads, or just simply mark or lock the cams ? 2) do I need the engine out of the frame to get the rear cylinder head off ? 3) are the bores steel liners, or are they electroplated ? 4) can the big end shells be replaced with barrels removed (i.e. can I get onto the cap bolts), or do I need to split the engine ? Not looking forward to getting into the engine, but needs must. I've already determined oversized pistons aren't available, and new barrel and piston are close on 1800 quid. I'm hoping there is no valve / seat damage as heads are more still Any advice gratefully received. Cheers, John.
Saw the post, winced, moved on… …having had the tank off mine last week, I'd be very surprised if the rear head could be removed without dropping the engine. The last time I had to do that particular job was on my 1982 Pantah, after it ate its oil scraper ring. Which doesn't help you much, although the head and valves survived on that occasion!
More helpfully (possibly): https://www.ebay.co.uk/itm/Cylinder...894423?hash=item2cd3ea1517:g:30QAAOSwyi1a8PMT OK, it would cost you in shipping & duty/VAT, but looks like what you might need.
Ouch John, sounds expensive. I'm only qualified to strip bikes down in hotel car parks and repair the Y shaped hose I'm afraid
Thanks for the link Richard, I may well buy that just incase Hi twin4me, Yeah,it could be expensive, especially if it needs barrels, pistons, heads. I am hoping there is no valve or seat damage. It would be nice if there is no bore damage too, but not holding my breath on that Going to drop the oil this weekend to see what I can find. Then decide whether to drop the engine. I'm still unclear if I need any specialist tools...
Hope its not too expensive !! Whilst I like my 749 I have an old Suzuki GT550 - took me a full 70 minutes last week to get the pistons out - and I was working slowly - happy days lol
I agree Brad, my 916 began my journey of not stripping the engine down in bits. Everybike I had before then had been stripped and rebuilt by myself. Every one after that, Ive left alone. More or less. I miss the joy of balancing a bank of 4 carbs. My gauges sit in a cup'd gathering dust. My valve spring compressor too. All those tools are now redundant. Even my scooter repair skills have evaporated. I could do a Vespa Cruciform in 45mins once. With engine still in bike. Now, nothing really goes tits up does it? Oh the joys of jetting 34mm Amals on a Lammy. Actually, I dont miss that pain in the ass one bit. Bastards.
Tbh I’m the same. Sure, never mechanic skills but could do the old bikes, change brakes on car, oil, service stuff, radiator etc. Now, don’t even know where to start. My 911 doesn’t have aircon. Looks like a simple condenser replacement, plug n play. Simply remove bumper...4 fasteners in and have up. Just open the windo now
Age of bike, if not too old, maybe try Ducati Warranty, they have been placing rings etc. on some of the 2015 bikes due to oil usage on constant medium Revs being held.
Age of bike, if not too old, maybe try Ducati Warranty, they have been placing rings etc. on some of the 2015 bikes due to oil usage on constant medium Revs being held.
Just don’t let it near an ‘official’ Porsche dealer. My nearest has just had my car for three months (Porsche couldn’t supply a perfectly standard part) and it’s come back with more problems than it went in with. Useless, arrogant t**ts (sorry, channelling Danny Dyer there)
Chinese eBay. Mine on 911.com about £700 iirc, eBay Chinese <£100. It’s juat like a ducati rad: not much change from a grand at your local dealer bit less than 100 notes shipped from China
Ive seen them for £50! Im tempted, I'll admit. But as I walk to work and rarely use the car, it can wait a while longer. The heater works and thats all I care about. I'm not into cars, although an old porky would tempt me to give bikes a rest. Only air cooled though. a circa 1973 911, would be my dream car. Fuck it, im gonna have to do the lottery now.
You’d be surprised just how good a 20yr old water cooled one is. And no need to worry about 20 min getting ready or it raining if you just fancy a little run out
yeah, youre bang on about the 20mins. That often puts me off going for a spin. The time it takes to get ready, move car, unlock security, wheel bike out, move car back etc etc... but an a/c 911 is my dream. I'd love an old air cooled carerra. Id caress it and sleep with it. It'd want for nothing and i'd wear rags and eat pot noodles for the rest of my life.
Best get one now...or wait another 10 yrs when the collapse happens and they go back to being sub 20k again lol
That’s what I’m waiting for - about four years ago I was bidding at Bonhams on a ‘72 911T that had been stored for 30 years - honest car, but needed a chunk of work. Optimistically, I had Autofarm primed to pick it up if I were to win it. At the time, half-decent 911Ts were going for £27-30k, so I thought I’d stand a good chance with a limit of £35k. Bidding went straight to £49k, so I went to the pub instead...
