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Can skimming my 5a engine head cause my car to drive poorly or is it the engine timing that needs to be set?

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Skimming a head only ensures a good fit for the head gasket
done to extreme will increase the compression ration slightly but will not have the result you describe
checking and adjusting the timing belt /chain could improve the performance
checking the ignition timing may improve the performance
should be around the 10 degree BTDC

Posted on Apr 24, 2017

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What do you mean by skimming? All kinds of things can make cars drive poorly!

Posted on Apr 24, 2017


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No Start - Lanos 99 SOHC 1.395cc

Hi. I can give you a simple, but time consuming test to do to check your intermittent compression problem. New hydraulic lifters cause a lot of problems until its settled. Remove the camshafts and the hydraulic lifters. Take each hydraulic lifter and put it in a vice(becarefull not to damage them) and squeeze out all the oil in the lifters. Then put them back and replace camshaft and allign timing marks. Check compression ratio. What happens sometimes is that the oil pressure is too high(stuck oil pressure release valve or cold thick oil) and this causes the oil pressure to put so much pressure on the hydraulic lifters, that it slightly forces the valve open. That will cause your low compression as well as backfire through the intake.

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Guys I've got a problem with a ford bantam 1.6i 2003 model rocam engine, its overheating even though the cylinder head was skim but it still overheating. please assist!

Check what head gasket was used . I suspect that an after market gasket was used. If that is the case there will be holes in the block and head thet have no matching holes in the gasket thereby causing the problem

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If you overheat an engine with a cast iron block and an aluminium head, they will expand at different rates as they have different expansion coefficients. This will usually cause separation of the gasket and if you are losing coolant, it's a near certainty. The answer is a new gasket (pennies) plus a head skim at a local engineering shop, $100 or so (otherwise it won't seal again). You need a torque wrench and a workshop manual to check the torque settings and slackening/tightening order if doing it yourself, otherwise you'll cause further warping of the head. If the head isn't skimmed, it will go again after 50 miles or so.

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P0702 p1685 fault code on 2.7crd merc transmission

DTC P0702 - Transmission Control System Electrical
There is a code in the ****** control module and need to check harnesses and wiring, as first step.

DTC P1685 - Skim Invalid Key
Transponder ID (in ignition key) is monitored with ignition on. DTC will set if transponder ID read by Smart Key Immobilizer Module (SKIM) does not match any transponder ID's stored in SKIM memory. Possible Causes:
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I would suggest clearing all these codes, and drive it until the problem arises again, or the check engine light comes on, and then check for codes again. To clear the codes you will need to remove the negative battery cable, and touch it to the positive cable, for about 15 seconds. Then re hook and all the modules will be reset. If this isnt work, visit your Trans Service.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

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My toyota car 5A FE automatic engine consumes oil. No oil leakage is present. If you open oil filler cap on the cylinder head when engine is running some pressure is felt coming out with oil droplets. Fuel...

The head gasket could be worn out between the cylinders and the oil could be flowing between this gap down the bores and through your exhaust this would account for the poor efficiency and lack of an obvious oil leak, check your cooling water and if it is frothy and whitish then I would strongly suggest that the heads blown or very close to it. an expensive and labour intensive job to fix, obviously get a decent garage to look at it and make sure before any majour decisions.
Hope this helps.

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Blown head gasket 2nd time in a year

oh i love blowing head gaskets there alot of fun arnt they. but the reason your blowing head gaskets is the head is warped and you'll have to take it to a machine shop and have it machined flat again i would also have them check for cracks.

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Still overheating after head is skimmed

waterpump? No movement of water/coolant, engine overheats. Engine overheats, warp heads. Next time you rip a head off, check gasket to see if head gasket failed or if there is a different cause to car overheating.

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Bmw compact temp goes up high unless you drive with the heater full then temp stays at normal, had new head gasket fitted and skimmed.

hi, you need to get your thermostat changed and the engine checked for an air lock as this sounds like the problem to me, the chances are that it was the thermostat that caused the head gasket to blow so get this changed.

The garage should have changed this anyway as its one of the main causes for head gasket failure.

Let me know how you get on or if you need further assistance ok

Jan 18, 2010 | 1996 BMW 318

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My car is in the repair awaiting a new radiator. By the time I got to th edealer all the coolant was probably gone. The high temp light shut off and the fix engine light came on and the engine strted...

You may very well have damaged the cylinder head. Once you have the new radiator in you should test it to see if you were lucky. Sometimes driving a car without water too long causes the cylinder head to warp. If it is not bad they can skim the head and you can put it back on with a new gasket. Depending on the type, cast iron or aluminum will determin if you need a new or good used head. I hope this will help.

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Head gasket blown on my 1992 1.9 tdi lots of smoke what are the torque settings and sequence please also will the head need skimming it has done 130000 miles thanks

It's always good practice to have the head skimmed. I would do it. As for the torque specs I'll have to look into that cause it doesn't show in my database.

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