| [ Total Views: 466 | Total Replies: 8 | Thread Id: 29009 ] |
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 kombibob
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| posted on September 21st, 2004 at 09:26 PM |
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gutless 1800
hi all i have a 1800typ4 motor in my kombi that is guttless!! and uses heaps of fuel i purchesed it two years ago it run crap so i put new rings and
new amc heads on it ,it still run crap (much slower than the stock 1600 i had in my bus before) i thought it must just be the 40 dcn webers i was
running so recentley i replaced them with some stock rebuilt carbs now it runs the same only slightly smoother and a bit less top end, compresion is
120 in all pots'new coil,extracters,leads,burns no oil.
any one got any idea??? i had a 1800 with cracked heads in my old bus and it went twice as hard and used half the fuel
thanks
1961 swb buggy
1960 karmann ghia
1963 Single Cab: "El Concreto"
1963 bent 23 window " Frieda Samba "
1963 Eriba Faun camper " Cara Van daCamp"
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VolksFolks
A.k.a.: Pandy
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| posted on September 21st, 2004 at 09:56 PM |
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hey man, i had the same problemo, jack it up so both back wheels are orf the ground, out of gear, how tight is the box, if it dont run freely there is
your promlemo, my gearbox oil was that thick it was sticky, probably been in there for 35 years, so i slowley drained it, put the bung back in, then
filled it with kerosene, put the bung in went and did 20 - 30 klms draind it again, added more kero (filled it right to the top) did another 20 - 30
klms and hey presto my box was as loose a a hookers cr#%&, it went twice as hard after that and used less fuel, i was soo happy but quite shocked
as i never heard off it before, hope this is your problem.. easy to fix but be sure to buy a 20 ltr drum off kero
Andy
They laugh because You are different, You laugh because They are all the same.
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Andy
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| posted on September 22nd, 2004 at 08:07 AM |
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Sounds like you've looked at most things, but are the carbs definitely setup correctly?
Might need to find some one with and O2 meter, and something to balance the carbs correctly with.
The rest sounds in order though.
Maybe try a stock exhaust also.
Oh, did you fit 2L or 1800 AMC heads? They have different valve sizes.
Just a note, 120psi on all is fine for a stock type 4, but I'd expect a little higher with new rings. (it won't be you problem though). Have you
done a "leak down test"??
Richard
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koolkarmakombi
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| posted on September 22nd, 2004 at 08:39 AM |
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what exhaust???
what dizzy.......... here is my bet.....
I am happy to look at it if you want, I have a huge box of kobi dizzys.....
kkk |
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oval TOFU
Son of Jim - Creator of Good
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| posted on September 22nd, 2004 at 10:55 AM |
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Hey Andy, did run the car on the road with just residual oil and mainly kero in it for 20-30kms?!
...and Robert's ya father's brother...
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VolksFolks
A.k.a.: Pandy
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| posted on September 22nd, 2004 at 11:00 AM |
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I used neat kero, went for a drive then drained it, then repeated it, when kero was in the box it leaked a little, but when new box oil was returned
no leaks were found, hope this helps
Andy
They laugh because You are different, You laugh because They are all the same.
check out http://www.lowlight.com.au for low lights only.. |
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oval TOFU
Son of Jim - Creator of Good
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| posted on September 22nd, 2004 at 11:01 AM |
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wow, I was just concerned about the lubing issues of not having oil in there..?
...and Robert's ya father's brother...
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kombibob
Custom Title Time!
AKA: Volkswagen Type 2 Transporter Van Robert
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| posted on September 22nd, 2004 at 05:39 PM |
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thanks for the replys i had a 009 disy on the motor thought that could be the prob so i tried a standard with no change ,carbs have been balanced by
ian at carb tech.
didn't think about the box ill give that a go
thanks
1961 swb buggy
1960 karmann ghia
1963 Single Cab: "El Concreto"
1963 bent 23 window " Frieda Samba "
1963 Eriba Faun camper " Cara Van daCamp"
2012 Skoda Octavia scout
Get down low and go,go,go
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Andy
Son of Jim - Creator of Good
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| posted on September 22nd, 2004 at 09:42 PM |
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A 009 dissy if timed correctly might give flat spots, but will not cause it to be gutless.
What do you time the 009 to?
Do you get good fuel pressure? Is the fue lfilter blocked?
Just another guess.
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mnsKmobi
Wolfsburg Wizard
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| posted on September 23rd, 2004 at 11:10 AM |
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Try taking off the spark plugs leads one at a time while the engine's running. There should be a noticeable drop in revs when each lead is removed. I
found that I had a big leak in the manifold using this method - removing the lead to that cylinder made no difference to the revs!
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Menangler
A.k.a.: Dave Becker
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| posted on September 23rd, 2004 at 07:31 PM |
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Has the cam shaft and lifters ever been replaced, did you check the wear in the lifters when you did the top end rebuild? T4 cam and lifters should be
replaced while doing a rebuild, they do wear out.
Just a thought.
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