Printable Version | Subscribe | Add to Favourites
New Topic New Poll New Reply
Author: Subject: VERY annoying R1 engine problem - worth seeing what happens on restart?
TimC

posted on 7/9/20 at 05:08 PM Reply With Quote
VERY annoying R1 engine problem - worth seeing what happens on restart?

I was at Pembrey for a trackday on Saturday. Had the most annoying failure thanks to a M6 bolt winding its way out...

Using a random image from Google, the very rusty pipe in the centre is secured in place by the equally rusty cap head bolt to the bottom-right of it (mine are in much better condition by the way.)
https://images.app.goo.gl/Ypk9nZcvu8T5UqWa9
Anyway, for those who don‘t know this pipe transports coolant from the integrated oil/water pump which is housed in the oil sump. A water-tight seal is assured thanks to a couple of o-rings. What has happened here is that the bolt has backed-itself out, the pipe has followed and the coolant has therefore been pumped directly into the sump/motor.

In hindsight, the first signal was clutch-slip but it ran for something like 10 minutes like this before it all escaped via the catch tank and I really knew I had a problem when my feet slipped off the pedals. It still got me back to the pits.

I’ve removed the sump and water-pipe drain plugs - not much in the cooling system and lots of water in the sump.

I’m resigned to the fact that the engine MUST be toast but since it was running, I can’t help wondering if I should clean it up and refill with cheapo oil and see what happens on attempted re-start. It feels like it might get some YouTube hits (if I were so-inclined.).

Shall I stop dicking-around, pull the motor out, save the cases for a later engine build and start saving my pennies for another (3rd now) motor?

View User's Profile View All Posts By User U2U Member
spiderman

posted on 7/9/20 at 05:19 PM Reply With Quote
I would fill it up with some fresh oil, turn engine over to circulate oil and check for any tightness, possibly a compression test too and start it up, it will become apparent if there is any serious trouble. What have you got to lose apart from the cost of a gallon of oil?





Spider

View User's Profile View All Posts By User U2U Member
perksy

posted on 7/9/20 at 05:42 PM Reply With Quote
As above

Fresh oil and try it, What's to lose, you might be lucky

View User's Profile View All Posts By User U2U Member
adithorp

posted on 7/9/20 at 06:33 PM Reply With Quote
Cheap oil, suck it and see. Guess we'll find out how good the expensive oil is.

A few years ago when my head gasket went, the oil came out looking like chocolate milk. When the engine was stripped and no bearing or bore damage found so you could be lucky.

[Edited on 7/9/20 by adithorp]





"A witty saying proves nothing" Voltaire

http://jpsc.org.uk/forum/

View User's Profile View All Posts By User U2U Member
TimC

posted on 7/9/20 at 08:41 PM Reply With Quote
Here’s what was in the sump:
https://www.flickr.com/photos/145619367@N05/shares/zKVfK2

View User's Profile View All Posts By User U2U Member
CosKev3

posted on 8/9/20 at 03:10 PM Reply With Quote
10 minutes of high revving track time?

Worth a try with some cheapo oil,but I fear the crank bearings wont last long,that's if it's not knocking badly on start up.

View User's Profile View All Posts By User U2U Member
jacko

posted on 8/9/20 at 04:54 PM Reply With Quote
Not a bike engine but a skyline 6cylinder the oil cooler pipe come of and blow oil every where the engine seized we repaired the pipe and replaced the oil
We kept towing the car and it started the car was used for two more years before getting the engine rebuilt
So there is always a chance
Jacko

View User's Profile View All Posts By User U2U Member
ReMan

posted on 8/9/20 at 10:13 PM Reply With Quote
My moneys on oil and go, no damage





www.plusnine.co.uk
∙،°. ˘Ô≈ôﺣ

View User's Profile Visit User's Homepage View All Posts By User U2U Member   ReMan 's ICQ status
TimC

posted on 9/9/20 at 01:05 PM Reply With Quote
quote:
Originally posted by ReMan
My moneys on oil and go, no damage


I hope you have a very successful betting history.

View User's Profile View All Posts By User U2U Member
James

posted on 9/9/20 at 02:00 PM Reply With Quote
He's the one who bet on the Grand Prix result at 169000:1!





------------------------------------------------------------------------------------------------------------

"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights." - Muhammad Ali

View User's Profile View All Posts By User U2U Member   James 's Aim
ReMan

posted on 9/9/20 at 06:59 PM Reply With Quote
R1 second only in bulletproof ness to the ‘blade. (Hoping I’ve not put the mockers on mine now)





www.plusnine.co.uk
∙،°. ˘Ô≈ôﺣ

View User's Profile Visit User's Homepage View All Posts By User U2U Member   ReMan 's ICQ status
TimC

posted on 10/9/20 at 03:11 PM Reply With Quote
quote:
Originally posted by ReMan
R1 second only in bulletproof ness to the ‘blade. (Hoping I’ve not put the mockers on mine now)


That’s not the conventional view on the 4C8 sadly.. aiming to attempt a start on Saturday. Sump coming off tonight.

View User's Profile View All Posts By User U2U Member
TimC

posted on 13/9/20 at 03:37 PM Reply With Quote

View User's Profile View All Posts By User U2U Member
adithorp

posted on 13/9/20 at 05:40 PM Reply With Quote
Sounds ok to me... With caveat that I do suffer a bit with tinnitus





"A witty saying proves nothing" Voltaire

http://jpsc.org.uk/forum/

View User's Profile View All Posts By User U2U Member
steve m

posted on 13/9/20 at 06:40 PM Reply With Quote
Sounds like a whining cat to me, but i am not keen on Becs

I do believe you have saved the engine though, and that must be a relief

steve





Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at




View User's Profile View All Posts By User U2U Member
perksy

posted on 14/9/20 at 09:48 AM Reply With Quote
I think you may well have got lucky there


Off you go now to buy a lottery ticket before your luck runs out

View User's Profile View All Posts By User U2U Member
gremlin1234

posted on 14/9/20 at 12:23 PM Reply With Quote
what does the oil look like now?
View User's Profile View All Posts By User U2U Member
TimC

posted on 14/9/20 at 09:45 PM Reply With Quote
quote:
Originally posted by gremlin1234
what does the oil look like now?

A bit older than one might expect on having been run-up to temp a few times but not too bad.

View User's Profile View All Posts By User U2U Member

New Topic New Poll New Reply


go to top






Website design and SEO by Studio Montage

All content © 2001-16 LocostBuilders. Reproduction prohibited
Opinions expressed in public posts are those of the author and do not necessarily represent
the views of other users or any member of the LocostBuilders team.
Running XMB 1.8 Partagium [© 2002 XMB Group] on Apache under CentOS Linux
Founded, built and operated by ChrisW.