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Re: Preparing my Spider 2000 for the Track
Posted: March 30th, 2016, 11:40 pm
by Guy Croft
Frequency - I think - may be may be too high for a rod bearing and it is quieter when you rev up.
Check the water pump, alternator bearings and cambelt tensioner pulley.
G
Re: Preparing my Spider 2000 for the Track
Posted: March 31st, 2016, 8:30 am
by Simon
Thanks Guy, I did suspect the water pump as that is around the area the noise is coming from, but it spins nice and smoothly by hand with no play - although that may be different when warm and under the load of the belt. Likewise the alternator, although that is on the other side of the block anyway. I suppose I should have ran it without the drive belt before I started pulling it apart! I've not checked the tensioner yet, so that is still a possibility. Either way I've committed to pull it out and rebuild it now, its long over due. Hopefully I'll get a few hours on it this evening.
Re: Preparing my Spider 2000 for the Track
Posted: March 31st, 2016, 9:36 pm
by Simon
Re: Preparing my Spider 2000 for the Track
Posted: March 31st, 2016, 9:51 pm
by Guy Croft
nice post but I think your conclusions will prove to be wrong...
G
Re: Preparing my Spider 2000 for the Track
Posted: March 31st, 2016, 9:58 pm
by Simon
Quite possibly Guy, do you think the real answer may still be in the bottom end? Hopefully, I will get that apart at the weekend.
Re: Preparing my Spider 2000 for the Track
Posted: March 31st, 2016, 11:06 pm
by Guy Croft
I'm afraid that only a thoroughgoing inspection will now tell..
the only possible cause of a knocking noise from the crank front end would be the front pulley but was visibly loose. And when that is the case usually the whole assembly comes apart and the parts 'brain' somebody in a following car on the M25 motorway, or similar...
(so to say....)
I guess we will see...
G
Re: Preparing my Spider 2000 for the Track
Posted: April 1st, 2016, 10:37 pm
by PumaPhil
Simon,
I just wanted to say I'm very impressed by the quality of your work, great stuff and great posts!
thank you, Phil G.
Re: Preparing my Spider 2000 for the Track
Posted: April 6th, 2016, 9:53 pm
by Simon
That's very kind of you Phil, especially given the meticulous standards you have applied to your Spider - it's superb!
I managed to get the engine out over the weekend, and strip, inspect and start some fettling on the crank and block over the last couple of evenings.
- Having seen a shot similar to this in the Haynes manual of the 'box and engine coming out in one, I decided to do the same in an attempt to avoid grovelling about underneath the car again to remove the gearbox first.
- IMGP4390.jpg (498.21 KiB) Viewed 34874 times
- It wasn't too bad a job, even single handed.
- IMGP4391.jpg (461.51 KiB) Viewed 34874 times
- I probably should have drained the oil first, but I couldn't be bothered to mess about removing the sump guard.
- IMGP4399.jpg (509.9 KiB) Viewed 34874 times
- Gera box removed and on to the stand ready to start the strip down.
- IMGP4404.jpg (525.39 KiB) Viewed 34874 times
- North Carolina's (cars original home) 'sleeping policemen' had definitely taken their toll on the sump!
- IMGP4406.jpg (387.41 KiB) Viewed 34874 times
- Sump off, and no nasty sludge which I was half expecting.
- IMGP4413.jpg (447.47 KiB) Viewed 34874 times
- Oil pickup still intact despite the bashed sump. A few bits of gasket crud on the strainer.
- IMGP4417.jpg (341.75 KiB) Viewed 34874 times
- Main bearing shells no too bad.
- IMGP4441.jpg (487.55 KiB) Viewed 34874 times
- Rods and piston out. Low comp. pistons will definitely be junked, not sure about rods yet.
- IMGP4422.jpg (355.73 KiB) Viewed 34874 times
In terms of any evidence of the cause of the knocking, I couldn't find anything in the bottom end. All caps were still torqued and the crank measures out just above lower limit (one journal was .1 thou below). I'm sure the problem was the woodruff, pulley and cam drive - it was a mess and as far as I can tell the only thing preventing the drive moving on the crank was the friction between the pulley. This was not loose but the bore was gouged.
See the movement here:
https://vimeo.com/161391035
Some more pics coming up...
Re: Preparing my Spider 2000 for the Track
Posted: April 6th, 2016, 10:29 pm
by Simon
Re: Preparing my Spider 2000 for the Track
Posted: April 7th, 2016, 11:06 am
by Guy Croft
have you modified the aux driveshaft?
The fuel lobe can hit no2 rod..
G
Re: Preparing my Spider 2000 for the Track
Posted: April 7th, 2016, 12:12 pm
by Simon
Hi Guy,
No, I've not modded the aux driveshaft (I will be on this rebuild though), the engine has never been apart, other than the head being off a couple of times and I always refer to the diagram in the Haynes manual for the positioning of the aux drive and cam wheels when disturbing the belt, but I could have screwed this up! There was no evidence on the rod or driveshaft cam of interference, although this may have been obscured by oil etc. I'll take another look though. Also, the noise only started occurring when I started it up a month or so ago to dry it out after sitting out on the drive, prior to that the cam belt and wheels haven't been disturbed since March 2013. Is it really possible that the cam lobe/rod could have been close enough to interfering throughout the three years and wear and tear has as now brought them closer together?
I'll contact you in the next few days about arranging the re-bore/pistons/rings, and ordering up bearing, gaskets etc.
Re: Preparing my Spider 2000 for the Track
Posted: April 7th, 2016, 12:29 pm
by Piotrek125p
Really nice car and fantastic photostory, I am a big fan of your job.
Re: Preparing my Spider 2000 for the Track
Posted: April 7th, 2016, 1:21 pm
by Guy Croft
It's possible Simon, assuming that the shaft -rod clearance was a bit 'borderline' in the first place..
Have a look on no 2 rod - near the bolt head - for a 'strike mark'...
G
Re: Preparing my Spider 2000 for the Track
Posted: March 14th, 2017, 7:51 pm
by Simon
Re: Preparing my Spider 2000 for the Track
Posted: March 14th, 2017, 9:14 pm
by Spider 1969
Impressive Simon! Keep it up.
Regards,
Charles