VZ 42 lost idle

Won't run? Engine, cooling system, fuel pump, carb, clutch, tranny, brakes, etc. The old messages from the NPCA 'Engine & Mechanical' category are here.
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VZ 42 lost idle

Post by L60Boerne »

Greetings,

CCV5 was running perfectly. After a hour of slow, rough and tedious grinding up and down limestone trails the motor lost its ability to idle and produced a faint backfiring. It restarted quickly. It never overheated or even showed to be much more than 155-60 degrees. It was in low speed and mostly in 1 and 2nd gear through the trails.

It seems something rattled loose. If this is common then I need to learn how to fix it on the trail.

Any help would be appreciated.

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Re: VZ 42 lost idle

Post by RiverPatrol »

As I recall you were having problems with one of them running too rich? I don't know if this is related to your current problem but one thing to be checked is that the vacuum port is available and oriented correctly on the carb base insulator. See the thread and picture here, this is actually a VC42 in the picture: http://www.60patrol.com/forum/viewtopic ... tor#p39308
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Re: VZ 42 lost idle

Post by L60Boerne »

Queen Patrol,

This very well maybe the root of some of my problems. I know the Rochester on the 65 didn't get this cut out. Ok, does this also apply to my 63 with the Hitachi VC 42 as well?

Regards,
L60 Boerne
63 Soft Top - Command & Control Vehicle 5 (CCV5)
65 No Top - Presidio Patrol (CCV4 )-Sold
65 No Top - Santa's Sleigh
66 Soft Top - Phoenix Patrol (CCV6) - Sold
66 No Top - Pinto Patrol (CCV7)
66 No Top - Flagstaff Patrol (CCV8)- For Sale
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Re: VZ 42 lost idle

Post by Esteban »

L60Boerne wrote:Greetings,

CCV5 was running perfectly. After a hour of slow, rough and tedious grinding up and down limestone trails the motor lost its ability to idle and produced a faint backfiring. It restarted quickly.
In addition to RiverPatrol's comments, I will take a look at the slow jet. Most probaby got clogged. Very easy to fix in that VC42 carburetor, since it's accessible from the outside. Any minor debris that passes will clog it. I borrowed the following picture from Pancho's thread and highlighted the location:
VHA and VC42 slow jet location.jpg
The thread Carburetors: VC42 vs VHA is a good reference to have handy: http://www.60patrol.com/forum/viewtopic.php?f=4&t=2560
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Re: VZ 42 lost idle

Post by L60Boerne »

Thank you, I will print both pictures and take them to Eddy the Eagle so he has your wealth of experience when he starts.
63 Soft Top - Command & Control Vehicle 5 (CCV5)
65 No Top - Presidio Patrol (CCV4 )-Sold
65 No Top - Santa's Sleigh
66 Soft Top - Phoenix Patrol (CCV6) - Sold
66 No Top - Pinto Patrol (CCV7)
66 No Top - Flagstaff Patrol (CCV8)- For Sale
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Re: VZ 42 lost idle

Post by RiverPatrol »

L60Boerne wrote:Queen Patrol,

This very well maybe the root of some of my problems. I know the Rochester on the 65 didn't get this cut out. Ok, does this also apply to my 63 with the Hitachi VC 42 as well?

Regards,
L60 Boerne
Yes, this applies for the VC42 as well.
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Re: VZ 42 lost idle

Post by Bkippen »

I would also check points gap. Unless you've gone electronic.

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Re: VZ 42 lost idle

Post by L60Boerne »

Thank you both, I'm proud to say I've got the Rob Moore electronic upgrade on both. I'll have Eddy disassemble the Rochester on the 65 and the Hitachi on the 63 because I'm sure neither has that cut out.

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L60Boerne
63 Soft Top - Command & Control Vehicle 5 (CCV5)
65 No Top - Presidio Patrol (CCV4 )-Sold
65 No Top - Santa's Sleigh
66 Soft Top - Phoenix Patrol (CCV6) - Sold
66 No Top - Pinto Patrol (CCV7)
66 No Top - Flagstaff Patrol (CCV8)- For Sale
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