DA100L Carb Bolt Leak

[gotsky]

Sorry if this has been addressed before I tried a search and came up empty..

I recently purchased a new DA100-L and have about 1.5 to 2 gallons run through it so far. I have noticed that since new I have a constant fuel sepage/leak out of one of the Carb bolts (1 of the two red main mounting bolts). It is leaking from the side that has the high and low speed needles. It is not coming from the needles nor is it from any of the gaskets. It seems to be originating from with in the mount hole itself. This is the DA100 with the RED bolts and red intake. Again there is no external sign of fuel on the outside of the carb. I just get a constant drip around the bolt head and the hole. Yes the bolt is tight and it is only on this one side. Any suggestions or known fixes for this issue?
Thank you for your time and help.

[Joeri]

You could try to take off the carb and reed block, de-grease all parts and threads and put it back together with loctite on the bolts.

[Andy Thomas]

Just call DA directly, I am sure they will have an answer.

[Cracky]

	Quote: Originally Posted by budgetdude
	Just call DA directly, I am sure they will have an answer.

Thats what we have a "Support Forum" for.....takes a little pressure off of DA's staff and lets them get to the post if they have a minute or two. Plus if 50 people have the same question they only have to answer it once.

Saves time and lets them do what they do best!

[TheTank]

Are the bolts by any chance appear to be over-tightened? i.e. squeezing/compressing the carb block creating a gap in the seal?

[gotsky]

I talked with a rep at DA this morning. He had me pull carb and asked me add some product made by Permatex Gasket "The Right Stuff"($16). Hopefully I did it correctly and don't find out the hard way on my next flight. I guess I will know if it work pretty quickly on the next start up. I am still not sure why I needed to add this gasket stuff to a brand new motor. I have a couple messages from other members that told me they were supplied with upgraded bolts and carb blocks because of this problem.
Thank you all for the time you took to try to give me a hand. It sounded like it was a known issue when I explained what was going on and to solution is for me to add this gasket stuff..
On a side note the bottle has in bold text not to be used in areas that have contact with Gasoline or head as head gasket.. This worries me as I have over 6 Grand in my plane and don't really want to be thinking about dead sticks and poor running motors every time I fly. Am I over thinking this?

[gotsky]

	Quote: Originally Posted by TheTank
	Are the bolts by any chance appear to be over-tightened? i.e. squeezing/compressing the carb block creating a gap in the seal?

Just for my own info is there a TORK setting they should be at. I put them back in hand tight with blue lock tight. Also all paper gaskets were soaked through when I pulled it apart.

[gotsky]

Well still leaking.. No reply on here from any DA Rep.( this is the DA Tech forum right?) But I do have 2 more messages from members on here that DA should replace the carb block, gaskets and bolts... Hmmmm guess I will try and call DA again.. Not really what I was expecting when I bought this motor. What sold me was the rave reviews about over the top service. Not hey you need to buy this gasket stuff tear into your motor and coat everything with it, but don't do it wrong or you'll mess up the pulse holes and/or if you apply to much you'll get some sucked into the intake and void your warrenty.. Great glad I spent $1200 on this

[jdearduff]

You should just send it straight to Da and have them fix it.

[DATech]

Hi John
Sorry the problem still persists. I assumed it was cured. Please send it to us and we will take care of it and get it back to you fast.
While we try to monitor the forum regularly, it is not our primary service link for our customers. If any questions are not answered quick enough, please contact us directly by phone or email.

[jmoesdad]

gotsky, did you notice gas/oil streaking on the belly? i just installed a 100l on a 2.6 yak and seem to have something leaking ahead of the exhaust in the cowl area and thought it might be running rich and coming out of the carb. does yours leak while running or not, or both? i would hate to take the motor off now and send it back in the beginning of season.

[gotsky]

	Quote: Originally Posted by jmoesdad
	gotsky, did you notice gas/oil streaking on the belly? i just installed a 100l on a 2.6 yak and seem to have something leaking ahead of the exhaust in the cowl area and thought it might be running rich and coming out of the carb. does yours leak while running or not, or both? i would hate to take the motor off now and send it back in the beginning of season.

It has a slow drip when just sitting. If you wipe your finger over the carb bolts they will be wet. When running it has a steady drip. The vibration of the motor then splatters the fuel all over the inside of the cowl, firewall and pipes which turns them a lovely brown/black tarnished color.

[RTK]

Don't think it has anything to do with the bolts or sealing, I would bet you either have a stuck, worn, blocked metering needle or have the diaphragm hooked up wrong,, if that carb has a fork on the metering lever.
A carb will not drip for any other reason while sitting unless the screws are loose on the pump or diaphragm side.

[jmoesdad]

	Quote: Originally Posted by RTK
	Don't think it has anything to do with the bolts or sealing, I would bet you either have a stuck, worn, blocked metering needle or have the diaphragm hooked up wrong,, if that carb has a fork on the metering lever. A carb will not drip for any other reason while sitting unless the screws are loose on the pump or diaphragm side.

not really, i called da after reading this post and having a mess under my yak and they said its a problem with the 100l and it is coming from the one bolt under the needle adjustments. i was told they would fix it for me or i could unbolt the carb put atv sealant and blue threadlock on the bolt and reattach. im going to give it a try tomorrow and see what happens. how much is that dl 111?

[RTK]

	Quote: Originally Posted by gotsky
	It has a slow drip when just sitting.

Not to be argumentative, but there is only one thing that will cause a slow drip when sitting, period, unless a cover is loose, it's the metering needle.
I guess the governor could leak, but only as long as it takes to empty the diaphragm reservoir and I have never seen that yet.
Maybe DA does not use a Walbro carb I am familiar with, but most are the same in how they function.