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Suzuki SJ Steam Train - Help!

 
 
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timini77
Gate Opener


Joined: 08 Jan 2009
Odometer: 45
Location: Hertford


1986 Suzuki SJ

PostPosted: Fri Jan 08, 2010 2:00 pm    Post subject: Suzuki SJ Steam Train - Help! Reply with quote

I'm running an HIF 44 Su carb on my SJ413 and recently decided to change my inlet manifold for one I had modified (carefully bored the two 'twin choke' holes into one for better flow).

The old inlet manifold gasket came off in bits so I used flange sealant and fitted the modded manifold.
After running it for a minute or so, steam/smoke started coming out of the exhaust in a big way and the engine sounded like it was running on 3.

I knew that this was because water was getting into the cylinders so I switched it off straight away.

I bought a new gasket from my local Suzuki stealer, took it all apart again, cleaned up the flange sealant which had turned to goo after contact with the coolant and once satisfied that the mating surfaces were clean and smooth, put it back together again.

I refilled the coolant system and ran it up, but the steam came back again very quickly, although the misfire had gone.
I ran it for a while as I thought that it might be residual moisture left over from before, but the steam kept on coming.

I even drained the rad and took it down the road a couple of hundred yards and back but it filled the street and I was getting flashed so I got back before I got nicked.

I am baffled as to why it still steams, even with a drained rad?!?

One thing I will admit to is that when I refilled the rad after the manifold swap, I grabbed a bottle of 'antifreeze/coolant' from the garage shelf.
When pouring it in, I thought it was a strange colour. I soon realised that I had used that bottle to bleed the brakes in the summer, but by that time the engine had been running and it had been round the system.

Would this have damaged the engine? If so, it's a shame as it's only done a genuine 54k and normally runs like a Swiss watch.

I did do a compression test, but all cylinders appear to be exactly equal and this fault only happened after I fitted the manifold, not whilst driving.

The only thing I can think of is that I may have missed a gasket out.
I have looked at gasket sets on ebay and there appears to be two types of gasket - the skimpy black one that I used and a grey one that has the same profile but different cut-outs (see pic).



There is a fair amount of mayo stuck to the rocker cover and in the oil filler cap too.

Can anyone help before I go mad?!?

Thanks

Tim
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Nathaniel
Difflock Royalty


Joined: 13 May 2003
Odometer: 17891
Location: North, North Yorkshire


1979 Suzuki LJ

PostPosted: Fri Jan 08, 2010 2:50 pm    Post subject: Reply with quote

You will get a lot of steam from the exhaust in this cold weather, run another car next to it for comparision.

Even the diesels do it on startup in this weather!

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If You Open Your Mind Too Much Your Brain Will Fall Out
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mikGV
Articulating


Joined: 21 Apr 2009
Odometer: 687
Location: Norton


2003 Suzuki Grand Vitara

PostPosted: Fri Jan 08, 2010 3:50 pm    Post subject: Reply with quote

mayo / steam, could be a head gasket ??

only changed the inlet manifold, try changing back to the old one.

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rockwatt
Off-Road Guru


Joined: 25 Jul 2007
Odometer: 1533
Location: North lincs



PostPosted: Fri Jan 08, 2010 4:34 pm    Post subject: Reply with quote

its possible when you moded the manifold you damaged the water jacket. Take off the carb and check for any damage. Or just swap the manifold back.
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timini77
Gate Opener


Joined: 08 Jan 2009
Odometer: 45
Location: Hertford


1986 Suzuki SJ

PostPosted: Sat Jan 09, 2010 12:38 pm    Post subject: Reply with quote

I checked the water jacket and all is well.

I would like to know about the gasket(s) if anyone has had their manifold off recently - do you need both (black skimpy one + grey one as in pic) or just one of them, as the cut-outs are different and they both appear to fit the profile of the inlet manifold.

Thanks

Tim
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timini77
Gate Opener


Joined: 08 Jan 2009
Odometer: 45
Location: Hertford


1986 Suzuki SJ

PostPosted: Sat Jan 09, 2010 12:41 pm    Post subject: Reply with quote

Nathaniel wrote:
You will get a lot of steam from the exhaust in this cold weather, run another car next to it for comparision.

Even the diesels do it on startup in this weather!


This is one serious amount of steam/smoke. It filled the street and I got flashed by oncoming traffic.

After refilling the system, my temp gauge was very high this time around. I didn't turn the heater on to get it through the matrix so there might be an air lock.

Off out in the snow to have another go at it . . . . . . Rolling Eyes
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Twiss
Mud Obsessed


Joined: 18 Feb 2008
Odometer: 6365
Location: West Sussex, UK


1993 Suzuki Samurai

PostPosted: Sat Jan 09, 2010 2:23 pm    Post subject: Reply with quote

i dunno how right it is but when i have bought inlet gaskets they have 2 layers (which seem to split apart when u take it off!)...
maybe they come seperately? like i say i've only ever bought it as 1 item...

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Twiss
'93 Samurai 416 16v
www.suzukiclubuk.co.uk
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mudmenace
Articulating


Joined: 12 Oct 2009
Odometer: 841
Location: worthing/west sussex



PostPosted: Sat Jan 09, 2010 5:48 pm    Post subject: Reply with quote

might worth doing a compression test dont hold me to this but when i did my old sjs i think they use to have around 150psi per cyclinder you can build up mayo in the rocker cover rom doing lots of short jouneys but as you are steaming quite alot i would say head gasket
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