|Topic Review (Newest First)|
|Yesterday 05:17 PM|
When I drained the oil, which had maybe 10 miles on it, the magnet had a fair amount of fuzz, and the oil was dark. Neither should have happened in 10 miles.
It’ll be an entertaining couple of days.
|Yesterday 01:34 PM|
If it were my problem I would try to isolate the cylinder by removing the spark and noting any change in the tap.
Old school trick. Just keep the leads loose and when she starts to rattle remove the spark. It should (the noise) change with
|Yesterday 01:22 PM|
|vintagemilano||Quickly draining the oil will tell you if there is anything serious going on in the bottom end. Or even just take the plug out, jamb your thumb in the hole and see if there is stuff on the magnet. Small end bearing, you would have to see if there is any bronze in the drain pan if they have bronze small end bearings.... Hope it's something simple.|
|Yesterday 12:47 PM|
Yup, checking timing & verifying TDC & dizzy firing time costs nuthin' and only takes a few minutes - basics, always back to basics
Decades ago I overhauled the Webers on my student GT 1300 Junior, popped them back on and it wouldn't start...off again, stripped, rebuilt, back on... no start.... off a third time -> what have I done wrong ?? Got gas, got spark....yup got gas & got spark
If you've ever done carbs on a 1300 with the shortest block of the Nords, everything is really close to the inner wing and a bear to work on. Pushed it out the drive, tried a bump start down the road... walked home, fetched Dad & a tow rope... back home he left me to push it up the drive. when I finally got it into the carport he met me at the garage door with a grin and said "does this go anywhere ?" holding the rotor in his hand. Aaaarg, I'd taken it out to give more clearance to my right elbow when wrenching the nuts under the plenum & the manifold & I'd checked the spark by flicking the lead from the coil against it's spade terminal on the dizzy instead of checking at the plugs - too lazy. Popped it back in, touched the key & vroom... lesson learned !!
If the timing is right, the do the plug lead test by pulling alternate leads until the hammering changes - that's the offending cylinder
Holding thumbs that it's a simple fix
|Yesterday 11:24 AM|
We’ll be looking at everything.
My first thought with your dizzy suggestion was “huh?,”. But, then I thought some more.
It certainly sounds like a whacking-on-metal failure of some sort. Piston pin? Anyway, there was a sudden power loss, and the noise isn’t there until some revs come on. Dizzy timing slip will get a check.
|Yesterday 10:09 AM|
Don, check that the dizzy hasn't shifted before you strip the motor down... It could give you the same symptoms and is far cheaper to check than the alternative
|Yesterday 10:03 AM|
Originally Posted by PS70 View Post
|Yesterday 08:32 AM|
|PS70||Bloody French !|
|Yesterday 07:24 AM|
The failure occurred yesterday evening just before sunset. We removed the cam covers, and saw nothing. The engine was warm, so I just called it a day and poured a good glass of Barbera.
I have commitments today, but son will arrive early tomorrow, and we’ll do a few quick checks before committing to pull the engine. He thinks it’s bottom end, but I think it’s top. Either way, it’s so easy to pull the engine and trans, we’ll probably have them on the stand by noon.
Shouldn’t hold me up from making Concorso. Just aggravating.
It idles perfectly without bad sounds. Revving through about 2,000 the tapping starts. It has the classic “rapraprap” of a failed rod bearing, but I’ve got other suspicions.
Watch this space.
First overhaul failure I’ve had since 1989, when a French aircraft engine twisted off a fuel pump drive tang because US gasket paper was .001” thinner than the French metric gasket paper it replaced.
|Yesterday 06:54 AM|
Oh **** !
No wather in oil, no oil in wather ?
Did you yet measure the valve clearance ?
Did you measure the compression into each cylinder ?
|Yesterday 06:26 AM|
|divotandtralee||Might as well put a stethoscope to it..don't you think? Really sorry for the set back. sounds like a stuck valve you might see in the plug hole.. bound up spring ?/ blah blah .. I'd want to go there before I shelved it.|
|Yesterday 06:15 AM|
Well, it’s said that if an engine overhaul is going to go wrong, it’ll happen in the first few miles.
Yesterday evening, after changing the oil and tightening the head nuts, we took a quick test drive. Accelerating up the highway entrance ramp it suddenly went flat and wouldn’t rev past 5,000 RPM. Plus, “taptaptaptap”.
Limped home. No external distress, and cam lobes look ok. Pressures and temps were ok.
We’ll have the power unit out on Tuesday, and my other ready spare in on Thursday.
|07-13-2019 08:13 AM|
Originally Posted by tubut View Post
Iím actually kind of baffled. At this moment there are only a few tiny details to be truly complete. Ashtray, soft top, smooth a few wrinkles in the leather, front license plate bracket, shift lever gaiter.
2018 was spent getting the body done, and overhauling and prepping subassemblies. I began the final assembly in December 2018.
At this moment, roughly seven months later, it does not feel like there has been nearly enough time to assemble an entire car, including the numerous reworks to get things really, really right. Iíve not been putting in ten hour days, so how did I get this far, this quickly?
But, here we are.
On to the remaining tiny details.
|07-13-2019 06:49 AM|
Originally Posted by DPeterson3 View Post
Road and Track did an article years ago on prestige license plates. One of my favorites was "IXLR8". An other favorite was a tag from a urologist's car "CME2P".
An old training buddy of mine and I discussed prestige plates many years ago. I commented it would be neat to have an 'Ironman' plate but the state only allowed 6 digits or spaces at that time. Next, I said it would be cool if they allowed lower case letters, so you could use the chemical symbol for iron -FeMan. Well using my idea, he ordered the state allowed 'FEMAN' plate . I laughed every time I saw that plate on his car; thinking people probably thought he was a cross dresser or something. Well the joke is on me. He currently holds the record for the most 'age group wins' in the Ironman Triathlon World Championship! He has done 15 of these races.
Sadly, I just learned of my friends passing this April when Googling this article...RIP Dr. Bruce
|07-12-2019 10:34 PM|
Originally Posted by DPeterson3 View Post
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