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Post by indianajones on Feb 1, 2012 2:32:37 GMT
Nice tip there Chris, I'll give that a go when I do mine, nothing to lose  *waits for crab  * -Andrew |
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Post by threelitre on Feb 1, 2012 10:54:42 GMT
I tried grease once too, like stuff made for ball joints etc. Seemed to work well. Before I did adjust the carb to give correct mixture on normal driving (part throttle) and lived with a not very good idle, helped by slightly raising idle speed.
Reworking the body with new bearings can be better than new when done right. A set of bronze bushes should make a major improvement in terms of wear.
Regards,
Alexander
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Post by indianajones on Feb 11, 2012 10:05:52 GMT
Well have got the carb in pieces in front of me. Needle and jet were not stock standard, replacements are. But here in lies a problem, I have a Waxstat jet set up. Replacement is standard. The only difference I can see is just how the jet is connected to the choke lever. Any ideas ? Edit: I see there are conversion kits/brackets out there, will see if one can be gained locally.....I hope so Also my replacement (stock) needle is fixed, it appears the current on is floating (has spring). Swapping over to fixed won't be an issue would it? Edit: It seems going to fixed is an issue, the bracket/spacer & screw are designed for a floating needle.......sigh....will have to try and get a new bracket and screw. Hopefully I can locally otherwise it's gonna be another long wait from the UK. Hope this make sense, if not will get some pics up tomorrow, too late now. Cheers, Andrew |
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Post by Penguin45 on Feb 11, 2012 14:45:02 GMT
All sounds a bit odd..... Have you got the tag number for the carb? Should be an HS6.
Chris.
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Post by tommydp on Feb 11, 2012 15:27:09 GMT
Hi Andrew!
As pointed out in a previous thread, I'm quite sure you have a later engine, most likely a Princess one. The Waxstat jet also leads to this. I suspect the metering needle, the one sitting at the bottom of the piston, you removed from the car is springloaded? Then you've probably got a kit for a mk 1/ 2 1800 (carb AUD 280), which is supposed to have a fixed needle. These are not directly interchangeable, unless you also fit a new jet bearing, the brass sleeve that remains inside the bottom of the carb after you've removed the jet.
The jet is the same size and you will be able to fit the new jet into your current carb. However, you should not do this as the fixed needle requires another jet bearing inside the carb. I suppose this is not included in the kit. The reason for this is the jet will have to be centralized when installing a fixed needle. You will not be able to centralize the bearing of your current carb.
My advice still is: Clean the original thing up, and tune as previously described. Fit the new float needle and guide.
Good Luck!
Regards, Tommy
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Post by tommydp on Feb 11, 2012 15:33:38 GMT
I just saw you had modified the thread and found out what I suspected:-)
Don't start messing around with these things before cleaning and checking the original set up.
Note! The waxstat jets are shit. This is a pollution device which alters the mixture related to temperature. They can upset the mixture badly when they fail.
If you're not satisfied after tuning and testing out the original set up, try fitting the new jet with your existing spring loaded needle to see if the waxstat is the problem.
'
Tommy:-)
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Post by indianajones on Feb 11, 2012 21:21:45 GMT
Hi Tommy, Thanks for the tips. Pretty much I've discovered what the deal is: -I have new needle (fixed) to replace a spring one. Also I forgot to note that the old needle is very badle worn at the end so needs/should replaced regardless.' SU sells a new needle guide that will allow a fixed needle to fit into the piston www.sucarb.co.uk/ProductDetail.aspx?Id=33987-I have a shitty waxstat jet currently. The replacement is a normal one. The new one will fit in etc, it's just the connection between the jet and choke cam lever are different and needs to be converted to suit. Again it looks like SU sell these also, as well as a few other places: www.sucarb.co.uk/ProductDetail.aspx?pumpsearch=&Id=28088www.minispares.com/Product.aspx?ty=pb&pid=42306As for the tag on the carb, AUD291. Which matched the one given by SU for the carb kit. I didn't notice the waxstat/had no idea there were two different types lol. Anyways so it seems it can be taken back to standard HS6 and I'll just need to e-mail SU and get the parts needed. -Andrew |
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Post by indianajones on Feb 11, 2012 21:44:12 GMT
Here's a photo of the needles, left is old, right is new  |
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Post by indianajones on Feb 11, 2012 23:52:51 GMT
Sorry, more pics. Tommy, you mention the jet bearing would needed yo be changed, the one I have seems to fit fine? or am I mistaken? Here's the old jet in the bearing:  Here's the new jet in the bearing:  And a Princess engine? bugger me lol....Any other tell tale signs? More importantly, would a stock 1800 HS6 work fine on the engine? -Andrew |
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Post by Penguin45 on Feb 12, 2012 1:29:05 GMT
Hi Andrew.
The AUD291 is an 1800 carb (albeit an Automatic one). It should be fitted with the AUD9148 jet (NON-waxstat, 0.100"). The needle should be an AUD1490ZH (a standard fixed needle). Logic would suggest that someone has made one carb out of two - possibly the top (chamber and piston) has been changed for a later one?
We'll probably never know.
P45.
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Post by Penguin45 on Feb 12, 2012 1:35:04 GMT
Oh - in theory, any HS6 spec carb could be set up to 1800 spec. The basic body unit is "universal", so re-jetting, re-needling and fitting the correct damper spring would produce a suitable carburettor.
1800 Princess engine was still a transverse "B" series, so almost an identical motor. Tommy has some experience along this line.
Chris.
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Post by dave1800 on Feb 12, 2012 1:41:34 GMT
Doesn't look quite right to me. Are you sure the jets are centred properly? regards David Here's a photo of the needles, left is old, right is new |
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Post by indianajones on Feb 12, 2012 1:44:24 GMT
Yea I just twigged it's an auto one now. which is funny as my mechanic reckons might car may of been auto. perhaps someone kept the old auto carb and changed it to a waxstat in an atempt to increase MPG (as someone has installed a vac gauge on the dash). Would the auto carb work fine? The jet and needle are what you've described See here: www.sucarb.co.uk/CarbEssentials.aspx?ProductId=11344So hopefully I can get her going with the new needle and jet -Andrew |
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Post by indianajones on Feb 12, 2012 1:47:44 GMT
I haven't centred anything yet, have not got that far. No idea what was going on inside the carb before really.
So I take it the end of the old needle is meant to be pointed like the new one? assuming it were new.
-Andrew
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Post by Penguin45 on Feb 12, 2012 1:50:48 GMT
That's the thing I mentioned above, Indy. So long as the basic body unit of the carburettor is sound, you can add jets, needles and spring to make it into anything you want.
Chris.
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