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penngwyne

penngwyne

Member Since 10 Mar 2007
Offline Last Active Mar 26 2024 04:31 PM
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#296839 RVR side dash airconditioning vents swivel fin repair

Posted by penngwyne on 21 March 2014 - 02:59 PM

If you are still doing this

It is possible to repair them (with some swearing) 
i have some pics and will post them when I find them


  • 4th likes this


#289328 Ball joints

Posted by penngwyne on 22 November 2013 - 06:03 AM

Bloody confusing isn't is!




#289059 Smoking 4g63T

Posted by penngwyne on 19 November 2013 - 05:11 AM

I agree with Penngwynnes thoughts. Have a crack and a punt, and replace the valve stem seals first. Many a "written" off motor I have done just had crystalline hard valve stem seals ( see Jacks explanation on why they then smoke).
Disregard BMGTZ and Penngwnnnes assertion that the cambelt has to come off. No, it doesnt ( at least when I do the job ). Its the same deal when swapping cams out. All you do is cable tie securely the sprockets to the cambelt. Ease the hydraulic belt tensioner piston back in with a 350mm x 8mm x 1.25 threaded rod. Make sure the car is in gear, battery disconnected and the handbrake pulled on firmly. This is to ensure the crank doesnt move. If it does ... THEN the cam covers will have to come off LOL. Ensure the cam timing is set at TDC compression stroke for #1 cylinder. Remove cam shafts and away you go. Note that my valve spring compressor is a very very custom made jobby. Works well though ( remember to pump the cylinders up with compressed air... a leak down tester does a good job)

 

Yes seals are easier than pulling off the head etc.

I hadn't actually thought about cable tie-ing the cam belt. However mine is an auto and putting compressed air into the cylinders would probably move the crank?

I am also VERY paranoid about getting all the timing marks lined up right. (I still have balance shafts.)
When I did my seals I used a length of rope in the cylinder to stop the valves falling in. (don't have an air compressor) .

This meant I had to rotate the crankshaft anyway to get the pistons up to the top for each cylinder so taking off the cam belt (and the timing covers) was a given.

If you are using compressed air  you could somehow stop the crankshaft from turning with a 1/2 sq drive in the crank nut and a bar jammed in somewhere, but it doesn't have to move far to stuff everything up.

 

I MUST get one of those rods made up it would have made life a lot easier.




#288518 Smoking 4g63T

Posted by penngwyne on 12 November 2013 - 03:33 AM

Have recently replaced my valve stem seals (130,000 km) all of my smoking and oil burning has stopped completely. 

Just done a 3,000 km trip and have used no oil at all and all of that smoking after idling and the oil burning smell has stopped.

 

My symptoms were exactly as you described and my compression test was bad too (I have another post to update)

I was also seriously thinking about a rebuild, but having done the seals and stopped all of the smoking it's not warranted.

 

The compression test figures are

 

Standard  1270 Kpa,,  Minimum  880 Kpa,, Max difference 98 Kpa
In English  184 psi,    127 psi,   14 psi 

 

So your compression figures look pretty good (and a lot better than mine)

 

You can't do the job without taking the camshafts off and to do that the timing belt has to come off

It is not necessary to take the head off to replace the stem seals. (there are some good videos on youtube)

 

If you are good at reading and interpreting instructions and have some mechanical knowledge it is not an impossible task but requires a bit of equipment

In particular a pair of good solid jack stands so you can safely work under the car, and a jack to prop the motor up when you take the LHS engine mount off

(Ohh it is a LOT of fun taking the pulleys off and getting the timing cover bolts out)

 

Beg buy or borrow THIS tool for the 4g63 valve springs don't waste money like I did buying anything else, this one is the good shit 

 

http://www.euroexpor...ring-compressor

 

Looking at the web site I wish i had seen this one too

 

http://www.euroexpor...n-tool-tbi10002