Unless using a true long life plug such as a platinum tip and multiple electrodes a good service interval is 15,000 miles. 

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Dennis Jowell
Sent: Tuesday, September 5, 2017 4:10 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: 2.2 engine hiccups at 3300 rpm

Problem solved!! Spark plugs were causing my bucking problem at 3200-3400 rpm. I changed the plugs and install new ones from Bus Depot - Bosch Super Plus spark plugs # 7998 WR7/CC+. (Thanks Ron) No more bucking or hiccuping. Plugs I took out had only 22k on them. What a journey. Thanks for all the suggestions which lead me to get at the plugs.

Dennis J

At a complete loss now what to do for the  hiccup engine problem.
I did notice today that when I went to start the engine for a test that the starter barely turned over. This the first time this happened Tried 3 times any finally got the usual power to it and it started as usual. New ignition switch, a replacement GOWESTY starter with about 5 k on both. 

Dennis Jowell
Scotch Hollow Farm
Newbury, Vermont 

> On Sep 4, 2017, at 2:27 PM, OlRivrRat <OlRivrRat@COMCAST.NET> wrote:
> 
>       Pretty Much Sole Purpose of Dielectric Grease is to Keep 
> Moisture Out ~
> 
>                                                       ORR ~ DeanB
> 
>> On 4 Sep , 2017, at 11:59 AM, Neil N wrote:
>> 
>> I also have to wonder that if too much grease was applied, would it 
>> help harbour moisture? This might depend heavily on the location and 
>> design of connectors, but if water got in, the grease might prevent 
>> it from evaporating off in a timely manner which might hasten contact 
>> corrosion? BTDT. (pretty sure anyways)
>> 
>> Neil.
>> 
>>> On 8/30/17, Dennis Haynes <d23haynes57@hotmail.com> wrote:
>>> 
>>> While dielectric grease sounds like a good idea and it is good to 
>>> slow down and prevent corrosion it can often cause more grief than 
>>> good. One of the problems with the connectors on some of the fuel 
>>> injection sensors is that the actual connectors do not have 
>>> sufficient spring pressure wipe off any debris or corrosion and 
>>> maintain a good electrical connection during temperature changes and 
>>> vibrating conditions. Adding grease under the contacts can just add 
>>> another insulating factor and with the low voltage that these 
>>> sensors operate at can make things a lot worse. If a bad connection 
>>> is thought than the fix is to repair the harnesses with new crimp terminals for the female contacts.
>>> 
>>> Dennis
>> 
>> 
>> --
>> Neil n
>> 
>> Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
>> 
>> 1988 Westy Images 
>> <https://picasaweb.google.com/musomuso/New1988Westy>
>> 
>> 1981 Westfalia "Jaco" Images, technical 
>> <http://tubaneil.googlepages.com/>
>> 
>> Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>