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hobbybob517
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Joined: June 02, 2011
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Location: Netherlands
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 Posted: Tue Mar 17, 2015 1:47 pm Post subject: Left side cylinders warmer than right side |
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Hi guys, sorry for this lame question, but is this normal?
stock 1300DP stock solex carb, stock SVDA dist stock exhaust
aftermarket chrome airfilter
done the tune up, new plugs n such.
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3 million rpm? Well there's your problem! No wonder it blew up! |
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nickfancher1
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Joined: February 03, 2014
Posts: 282
Location: Phoenix, AZ
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| Posted: Tue Mar 17, 2015 1:59 pm Post subject: |
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All valves adjusted to .006"?
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hobbybob517
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Joined: June 02, 2011
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Location: Netherlands
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| Posted: Tue Mar 17, 2015 2:04 pm Post subject: |
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Yes, engine starts great and purrs like a kitten, had a slight vaccuum leak under the carb, but fixed it with a new gasket.
uploading a video of running engine to youtube as we speak
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3 million rpm? Well there's your problem! No wonder it blew up! |
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hobbybob517
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Volks Wagen
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Joined: February 13, 2013
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Location: Germany
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| Posted: Tue Mar 17, 2015 2:36 pm Post subject: |
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Is the car new to you or do you know the motor well? Just wondering, cos mine had a 1300 and a 1600 head...
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hobbybob517
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Joined: June 02, 2011
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Location: Netherlands
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| Posted: Tue Mar 17, 2015 2:46 pm Post subject: |
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it's a stock 1300 motor which i pulled apart and rebuilt about two years ago
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3 million rpm? Well there's your problem! No wonder it blew up! |
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Multi69s
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Location: Lefty, CA
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hobbybob517
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Joined: June 02, 2011
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Location: Netherlands
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| Posted: Wed Mar 18, 2015 1:25 pm Post subject: |
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| Multi69s wrote: |
How do you know that one bank is warmer then another? You may have just curious how you are determining this.
Unless you had the case decked and CC d the heads, you could very well have higher compression on one bank versus the other, which would cause a temp difference. |
case isn't decked and heads not cc d , i put my hands on the cylinder tins and i can realy feel the difference, didn't run it for more than 30 minutes though.
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Mr.Duncan
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Joined: May 12, 2012
Posts: 3542
Location: Houston, TX
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| Posted: Wed Mar 18, 2015 1:32 pm Post subject: |
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| hobbybob517 wrote: |
| Multi69s wrote: |
How do you know that one bank is warmer then another? You may have just curious how you are determining this.
Unless you had the case decked and CC d the heads, you could very well have higher compression on one bank versus the other, which would cause a temp difference. |
case isn't decked and heads not cc d , i put my hands on the cylinder tins and i can realy feel the difference, didn't run it for more than 30 minutes though. |
Maybe where the cylinder head port meets the intake manifold there could be a slight vacuum leak...
Could make the left side run lean? = Hot.
Just thinking outloud here.
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jhicken
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Location: Fallbrook, CA
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| Posted: Wed Mar 18, 2015 1:52 pm Post subject: |
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I believe this is common if you are running a non-doghouse motor. Because the oil cooler is inside the fan shroud, it disrupts the air-flow over the left side of the motor making it a little hotter. As long as the motor is well tuned and the engine compartment well sealed, it shouldn't be a problem. You may consider sourcing an original air cleaner. If the filter is either to restrictive, or not restrictive enough it will effect the air/fuel mixture causing it to either run to rich or to lean. To lean will cause it to run hot. If you have an otherwise stock motor, best to keep it all stock. A little chrome filter won't impress anyone more than a well detailed all stock motor.
Also you are not doing your motor any favors running without all the tin. That could contribute to it not running as well as it should.
-jeffrey
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hobbybob517
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Joined: June 02, 2011
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Location: Netherlands
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| Posted: Wed Mar 18, 2015 2:06 pm Post subject: |
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| jhicken wrote: |
I believe this is common if you are running a non-doghouse motor. Because the oil cooler is inside the fan shroud, it disrupts the air-flow over the left side of the motor making it a little hotter. As long as the motor is well tuned and the engine compartment well sealed, it shouldn't be a problem. You may consider sourcing an original air cleaner. If the filter is either to restrictive, or not restrictive enough it will effect the air/fuel mixture causing it to either run to rich or to lean. To lean will cause it to run hot. If you have an otherwise stock motor, best to keep it all stock. A little chrome filter won't impress anyone more than a well detailed all stock motor.
Also you are not doing your motor any favors running without all the tin. That could contribute to it not running as well as it should.
-jeffrey |
Thanx for the tips guys, i am currently sourcing a complete airfilter and the pipe that goes to it from the tin, i've removed the tin to check a possible oil leak, it seems that the seal behind the pulley is sweating a bit when warm.
I've checked for a vaccuum leak it seems that the manifold to head gasket is not sealing propperly, didn't notice this untill i warmed the engine up fully, changing the gasket tomorrow.
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jhicken
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| Posted: Wed Mar 18, 2015 2:17 pm Post subject: |
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Not sure if a DP 1300 has a doghouse fan shroud but the US single port doesn't. This would be the primary reason, if you do have a dog house fan shroud, then the missing tin and vacuum leaks are probably your problem.
-jeffrey
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Volks Wagen
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Joined: February 13, 2013
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Location: Germany
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| Posted: Thu Mar 19, 2015 12:40 am Post subject: |
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| jhicken wrote: |
Not sure if a DP 1300 has a doghouse fan shroud but the US single port doesn't. This would be the primary reason, if you do have a dog house fan shroud, then the missing tin and vacuum leaks are probably your problem.
-jeffrey |
FYI - Yes the DP 1300 has a doghouse shroud as stock.
_________________
1973 1303 with AB-motor - sporadic
reconstruction as time permits, 1986 ex-Bundeswehr Doka - on the road again.
I'm definitely, probably, the worlds greatest lover.
Aithníonn ciaróg ciaróg eile. |
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hobbybob517
Samba Member
Joined: June 02, 2011
Posts: 1194
Location: Netherlands
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| Posted: Sun Mar 22, 2015 10:24 am Post subject: |
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Thanx for the help guys,
turns out the head wasn't sealing right, caused a verry slight vaccum leak, torqued the heads down and it seems to be a lot better now,
also it idles better.
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