engine running on - don\'t think it\'s rich

oval TOFU · 2005-09-22T06:37:31+00:00

My 40HP is running on when it's hot/at operating temp. Here are what the plugs look like. The runnin-on seemed to happen when i started using ULP (as opposed to PULP) cyclinder's #1 and #3 seem a bit lean, though #2 & #4 look pretty spot on. So there would not be any bits of carbon etc that would be 'dieseling' the engine when i turn it off. Also, when the engine does stop kicking over when i turn off the ignition, it stops with a bit of a clunk and very abruptly. help?

Kombi Dad Slammed & Awesome Dubber

96 posts · joined Jun 2003 · 11 Oct 2005, 8:34 pm

#416467

I finally changed to PULP and found that fuel consumption went from about 10l / 100km to 8.0l / 100km. Would appear using PULP helps the 1380 to run a lot better. The figures quoted were on a trip from Canberra to Lismore and back just recently. I do not have the running on problem any more.

oval TOFU Bitte, ein Bit!

2,946 posts · joined Jul 2003 · 11 Oct 2005, 11:13 pm

#416548

Anthiron wrote:yes your carby has a shut off solinoid.

its on the right hand side. (facing the engine) there should be a wire coming to it and the auto choke. the shut off solinoid is a short cylinder.

Isn't that usually on the rear or the carby (looking at the engine)? I don't seem to have one anyways- I only have an auto choke it seems.

UPDATE After a couple 90 min drives on the freeway on RON 95, I get no more run on, nor pinging. I do get a bit of a flat spot on acceleration, so I'll be tuning it back to 10 degrees BTDC and see how it goes..

GO PULP!!!

...and Robert's ya father's brother...

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 12 Oct 2005, 7:57 am

#416602

Amazing what a little Octane will do for your engine

I read it on FACEBOOK so it must be true

http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630

http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099

http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603

http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

56astro Custom Title Time!

1,772 posts · joined Aug 2002 · 26 Nov 2005, 7:47 am

#432366

Are these run-on problems only experienced in small, original size valved heads?

I have this problem and am getting a little worried that continually stalling the engine with the clutch and brake might be doing some harm in the long run.

I ran quite a few tanks of BP Ultimate through it and didn't seem to make any difference.

Other than using expensive fuels, I was contemplating:

1. fitting 40x35 valved heads

2. ditching the Kads for some small-ish IDFs

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

karmen Son of Jim - Creator of Good

2,648 posts · joined Apr 2003 · 26 Nov 2005, 10:00 am

#432381

what about a good country drive to decoke.
like after an hr of steady cruisin in wth (5th if ya got)

then drive on say 90ks nahre 4 5 mins in 3rd without flooring it.

m
ercedes manual says this way u can clean spark plugs etc.

I changed my timing to run my Seat GLX on ulp due to budget (6 cars) and no pinging and its on 244.000 ks and i changed it 110,000 ago when i got it off my rich son (PULP only) they did not have PULP or 98 octane in the ole days. guess the lead had somethin to do wid it too.
then there are additives for the fuel (upper cyl lube) and TEFLON
woah there 40 horses....
need any oval stuff....found a shed full in Bundy Tofu ...incl mint? 54

Karmen
56 oval resto 60 Cal KG
58 & 62 beetle parting. 74 panel parting
63 Baja 80 GLD parting
58 donor split 11 window 63 Splitty sgle cab /son's
96 Seat Cordoba GLX daily drvr.

karmen Son of Jim - Creator of Good

2,648 posts · joined Apr 2003 · 26 Nov 2005, 10:03 am

#432382

thats 9o kph for 4 to 5 mins on flattisch road (not steep hilly rd)above sorry

oh yes had no work done iexcept clutch at 200 Gs !!

Karmen
56 oval resto 60 Cal KG
58 & 62 beetle parting. 74 panel parting
63 Baja 80 GLD parting
58 donor split 11 window 63 Splitty sgle cab /son's
96 Seat Cordoba GLX daily drvr.

karmen Son of Jim - Creator of Good

2,648 posts · joined Apr 2003 · 26 Nov 2005, 10:04 am

#432383

shut off valve came in 68 beetles etc not orig 40 hp.
want one ??

Karmen
56 oval resto 60 Cal KG
58 & 62 beetle parting. 74 panel parting
63 Baja 80 GLD parting
58 donor split 11 window 63 Splitty sgle cab /son's
96 Seat Cordoba GLX daily drvr.

VWCOOL 23 Windows of Awesome

5,158 posts · joined Jun 2003 · 26 Nov 2005, 11:53 am

#432394

Try BP Ultimate - I had constant pinging/etc (even with a knock-sensed HSV) with Optimax

Pay your debts, CxxT

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 26 Nov 2005, 5:36 pm

#432442

I have heard several people complain about run on with Kads.

Baja Wes said he had it with his Kadd'ed 1916

Are you sure your timing / valves etc etc is all ok??

Dont you have a Pobjoy Astro??

What does Stan say??

Does it get hot??

I reckon you would be better with a set of IDF 40 or 44's.

IDF 36s would be too small

[ Edited on 26-11-2005 by Bizarre ]

Futue te ipsum!!!

56astro Custom Title Time!

1,772 posts · joined Aug 2002 · 26 Nov 2005, 7:12 pm

#432460

I don't have points so I set the timing at 28-30 @ 3500.

Valves have been done and there was no difference between before and after.

Yes it is a base Pobjoy, it has done it since new. Stan knows it does it. When I rocked up to his place after I got it back on the road it did it in front of him.
He puts it down to the Kads, which I got 2nd hand and supplied to him.

It's never got hotter than about 125 deg C and hasn't been hotter than 110 deg C since the rebuild. I do over 100km to work and over 100km return, so it does get a really good run.

I got IDF44's for the mean time (steroids planned) do you reckon they might be too big for the small-valved base version?? Maybe just a change in vents and jets??

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 26 Nov 2005, 7:47 pm

#432469

56astro wrote:I got IDF44's for the mean time (steroids planned) do you reckon they might be too big for the small-valved base version?? Maybe just a change in vents and jets??

Not too big - perfect

http://www.aircooled.net/new-bin/viewproductdetail.php?keyword2=FSK0020&cartid=1123200531937914

AC.net - "run 44's in a 1900 - 2100s"

With 36 vents they will be right.

AC.net recommend 32 vents for 1600's (see above link) - and i agree (what ever that means :P)
I ran my IDF 36's with 32 vents on a 1600 and they were sweet as. On the 1776 they needed nursing. Just never seemed happy.
Reckon they needed 34 vents - but i couldnt be put in. Should have bought 40's or 44's
I know several 1916's with stock 040 heads motors that run 44's

Go for it

Futue te ipsum!!!