Silicon Gasket Maker

Submitted: Thursday, Jan 08, 2009 at 21:32
ThreadID: 64936 Views:3133 Replies:4 FollowUps:5
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What colour to use on sump of ZD30 ?

Today I put the sump back on my (rebuilt) ZD30. In the rebuild kit was two tubes of Silicon - one blue and the other grey.

I had already used the blue tube for the timing cover and today's project was to put the sump back on. Rather than open the new (grey) tube, I used the blue tube.

Tonight I've been thinking if I did the right thing. Should I have actually used the grey tube?

Google gave me a site that said they are basically the same thing. Both can withstand high temperatures.

Any diesel fitters care to comment ?

HNY

Malcolm
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Reply By: Member - Luke (SA) - Thursday, Jan 08, 2009 at 21:52

Thursday, Jan 08, 2009 at 21:52
Permatec and loctite make a silicon gasket maker, (both look and smell the same). They have written on the tube if it can withstand certain heat, I would assume the brand you have would have the same.

Is there anything different written on each tube??

Just a thought

Cheers Luke
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Follow Up By: Member - Malcolm C (QLD) - Thursday, Jan 08, 2009 at 22:07

Thursday, Jan 08, 2009 at 22:07
Thanks Luke

Is there anything different written on each tube??



DynaGrip - DynaBlue - temp up to 250c

ThreeBond 1260 - Auto Liquid Gasket - Grey - Oxygen Sensor Safe that's all it says. Except "Harmful if swallowed" :-)

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Reply By: Member - shane (SA) - Thursday, Jan 08, 2009 at 21:53

Thursday, Jan 08, 2009 at 21:53
as far as i know the blue is for the manifold and anything to do with oxygen sensors.
cheers shane.
AnswerID: 343311

Follow Up By: Member - Malcolm C (QLD) - Thursday, Jan 08, 2009 at 22:08

Thursday, Jan 08, 2009 at 22:08
Thanks Shane

They are both Oxygen Sensor Safe.

See my reply to Luke

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Reply By: Member - Howard (ACT) - Friday, Jan 09, 2009 at 10:31

Friday, Jan 09, 2009 at 10:31
Dont think it matters much which you use .
just be carefull with putting silicon on sump gaskets . if you put too much on you will have a bead form inside the sump. under heavy vibration this can break off and drop in the sump ,be collected against the oil pick up and block the filter on the oil pick up resulting in a drop in oil pressure .
A few blokes I know learned the hard way using to much silicon on their rally cars.
personally I prefer to use gaskets and gasket goo on sumps for the above reason.
cheers
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Follow Up By: Member - Malcolm C (QLD) - Friday, Jan 09, 2009 at 10:52

Friday, Jan 09, 2009 at 10:52
Thanks Howard

The sump is already on. But, thinking aloud, maybe I could drop the small sump and check for excessive bead.

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Follow Up By: Member - Malcolm C (QLD) - Friday, Jan 09, 2009 at 22:19

Friday, Jan 09, 2009 at 22:19
Today when I cut the excess goo on the outside (not that there was that much - just wanted to tidy it up) there was no way that the little that would have been on the inside would come off.

I'll live with it ;-)

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Reply By: qubert - Friday, Jan 09, 2009 at 21:32

Friday, Jan 09, 2009 at 21:32
the grey is to glue the bell housing to the engine ( with bolts too). for some reason nissan glue the transmission to the engine. maybe to help keep water out.
( well they did this on the td27 on navaras )
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Follow Up By: Member - Malcolm C (QLD) - Friday, Jan 09, 2009 at 22:15

Friday, Jan 09, 2009 at 22:15
qubert

I'll double check that tomorrow. I know when I split the bell housing taking it out of the car there was no sealant used at all.

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