Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
January 22, 2018, 05:05:25 AM
 
Pages: [1]
  Print  
Author Topic: A catalogue of problems, maybe adding up to one solution?  (Read 606 times)
0 Members and 1 Guest are viewing this topic.
Steady-On
Jr. Member
**

Karma: 0
Posts: 20


WWW
« on: September 22, 2016, 10:04:44 AM »

Hi all. After recent rebuild I'm having some engine problems, and I'm a bit stuck now. Hopefully if I list all the symptoms someone can give me a diagnosis!

- lots of blue smoke on startup (haven't been on a long run yet)
- seemed sluggish when I've driven it a few yards up the road
- black oily spark plugs
- black oil dripping from exhaust
- I can't get the distributor to align correctly when setting static timing as per Haynes. It says to turn anti-clockwise until points close, but there's not enough movement on the bolt. When I re-tooth the distributor to achieve this, the rotor arm doesn't line up with no1 terminal.

I've done a full rebuild so there's every chance I've ballsed something up (rings, cam timing, carb settings?)

Any help much appreciated!
Logged
Dell Boy
Ultimate Enthusiast
********

Karma: 17
Posts: 2344


« Reply #1 on: September 22, 2016, 02:34:42 PM »

Blue smoke & oily plugs due to oiling everything during rebuild?

Timing out. cam belt on wrong tooth? Some belts dont give exact alignment & have to be re-aligned on to the next tooth.

Insert the distributor 20 or 30 degrees back so as it engages the skew gear & moves round the rotor ends up aligned with no.1 H.T. post.

If you gave me £800.00 a refurbished engine would have been installed & you would be driving off into the sunset smiling.

Derek.
Logged

Dell Boy - The Rascal Specialist
Steady-On
Jr. Member
**

Karma: 0
Posts: 20


WWW
« Reply #2 on: September 22, 2016, 03:13:29 PM »

Haha this is all too true, and saved a considerable amount of money as well I'm sure! Still, this is more of a way to teach myself how to fix a car (albeit an old banger), and I've learned a huge amount even just from this forum and from yourself, Del.

I've just had a fiddle with timing and carb settings, enough to take it out for a run to warm up and pull in choke. Smoke is much less without choke, although still visible on acceleration. I did saturate the whole thing in oil while rebuilding, I wonder how long that would l take to burn off?

There's no guts to it above 30mph, and couldn't get her above 40, which leads me to suspect timing belt misalignment. Will check this out later today.

Cheers
Logged
Steady-On
Jr. Member
**

Karma: 0
Posts: 20


WWW
« Reply #3 on: September 22, 2016, 07:36:29 PM »

Getting dark early now isn't it? Given up for the day but not after spending the last hour battling to remove the fan. Knuckles are scraped and brand new radiator has a few dings, but it's done. Took the cambelt cover off and at first glance it looks like the timing is indeed a bit awry. Will investigate further in the morning.
Logged
Llywelyn1984
Hero Member
*****

Karma: 0
Posts: 239



« Reply #4 on: September 23, 2016, 11:28:57 AM »

Pass! Dont give up!
So close...
« Last Edit: September 23, 2016, 11:30:49 AM by Llywelyn1984 » Logged
Steady-On
Jr. Member
**

Karma: 0
Posts: 20


WWW
« Reply #5 on: September 23, 2016, 09:14:15 PM »

I'm in far too deep to give up now!

Camshaft seemed to be aligned ok in the end... I've attached a picture, I think. Maybe half a tooth out? In any case, it's still not got any oomph at higher speeds. Compression checks out well, but I checked the oil level and the dipstick came out dry! I've got a drip from the drain plug but could the engine have burned that much oil? Could it be the piston rings bedding in? I'm going to drain the oil and see how much comes out.
« Last Edit: September 23, 2016, 10:44:34 PM by Steady-On » Logged
Dell Boy
Ultimate Enthusiast
********

Karma: 17
Posts: 2344


« Reply #6 on: September 25, 2016, 11:02:38 AM »


Try one tooth the other way. It appears to be a half tooth out. Cant understand where the oil has gone. It wont have burnt that much & to leak over a litre of oil there would plenty of evidence as to where it was coming from. Was it properly topped up taking into account the oil filter/sump was empty.

Derek.
Logged

Dell Boy - The Rascal Specialist
Steady-On
Jr. Member
**

Karma: 0
Posts: 20


WWW
« Reply #7 on: September 25, 2016, 05:19:08 PM »

I mean, the drip from the drain plug was enough that I needed to keep a bowl under it (when I drained it I noticed just a copper washer with the plug; should there be a rubber one too/instead?)

This morning I emptied out around 1700ml of oil, compared to the 3980ml (or whatever the capacity is) that I put in. I suppose it could have dripped that much over the past couple of months... There are certainly oil patches galore where it has been parked. A few teaspoons a day doesn't seem totally unrealistic.

I'll try resetting the cambelt. While I'm in there again I might as well take the head off and examine the guts, right? Anything I should look out for?
Logged
Llywelyn1984
Hero Member
*****

Karma: 0
Posts: 239



« Reply #8 on: September 27, 2016, 04:56:54 PM »

Forgive my ignorance but isn't the timing checked with a strobe light? (Or test bulb for old money).
Logged
Llywelyn1984
Hero Member
*****

Karma: 0
Posts: 239



« Reply #9 on: September 27, 2016, 05:00:02 PM »

Also why go into the engine before you've rulled out cambelt?
Logged
Steady-On
Jr. Member
**

Karma: 0
Posts: 20


WWW
« Reply #10 on: September 27, 2016, 08:17:19 PM »

This would be valve timing rather than ignition timing, which I did set with a timing light and seemed correct.

I'm wondering about checking the cylinders etc just because it's such a ballache taking the cambelt cover apart, and seems like only a few more steps to get the head off. But I may be being overly optimistic.
Logged
Llywelyn1984
Hero Member
*****

Karma: 0
Posts: 239



« Reply #11 on: September 28, 2016, 09:05:08 AM »

Ahh ok i get it.
So the explanation is your valve timing is off somewhere.
(As i understand it, you in theory connect a test bulb to the ignition timing.  This said bulb would alight when the rotor arm is facing lead one, and when the engine as per the flywheel? timing marks is in the right place as the bulb alights.  However actually the pistons are a little behind or ahead and thus explaining all the shoddy performance and one assumes slight misfires.

This is either in the camshaft or the timing belt.
(As Dell says, and there are a few historical issues on the forum, there is a chance of the cambelt being out a tooth.)

You are also loosing/burning oil.

So your hope is that you will solve both issues in one soggy Saturday afternoon.
The down side of course being you run the risk of getting confused by not being methodical.  However you are happy to forgo this in the hope of getting it solved, having a party and a few high fives, and then showing the misses a good time (a spin in the van of course).   
Logged
Pages: [1]
  Print  
 
Jump to: