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The mkiv Supra Owners Club

Head Removed - A few questions...


andygood

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Hi all,

 

I got the cylinder head off my car last night and the new upper gasket kit arrived today, so I have a few questions before proceeding...

 

1: Stem Seals - I can't source a valve stem seal pliers anywhere locally, and it'll take about two weeks to get one ordered! Would seating and pushing them on by hand work out, or am I heading for a train wreck?! If so I'll just leave the current ones in there...

 

2: Lapping - I also can't source a lapping tool. I've read about a trick using a length of dowel and a hot glue gun on the face of the valve... Should I, or shouldn't I?!

 

3: Cam Bearing Caps - One of them leaked some 'black stuff' on opening. Is this anything to worry about?

 

4: Water channels - Some of the water channels are a bit blocked up with gunge either side of the gasket on the block and on the cylinder head. Is this okay, or does it indicate some other problem? Is it safe to do a flush of the cooling system if it's in this state, or should I leave well enough alone?

 

Ta much,

A.

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Why didn't you order the tools & parts before taking the head off? Do the job properly otherwise it will cost you big bucks when it all goes wrong!

 

Yeah, I hear you, but I'll be scrapping/breaking the car soon anyways, due to a combination of factors. (old, N/A, high mileage, not worth spending cash to keep it on the road, can't sell it, NCT/MOT due soon) So I'm just trying to get another couple of months out of it... Good excuse to move to a TT really... :D

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Thanks for the linkies! I never think of checking fleabay...

 

Would you believe that most of the motor factors here give me these blank looks when I ask for them... :( The ones that do know what I'm on about just say 'Uhh, we wouldn't sell a lot of those, now!'

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Guest jello22
Thanks for the linkies! I never think of checking fleabay...

 

Would you believe that most of the motor factors here give me these blank looks when I ask for them... :( The ones that do know what I'm on about just say 'Uhh, we wouldn't sell a lot of those, now!'

 

ebay has always been a great resource for finding some decent parts...I share your pain when it comes mechanics in my neck of the woods as well.https://www.chrome-scene.com/smileys/36/1242750956/frown.gif

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you dont need the pliers to put the stem seals on but you definately need them take them off particularly the exhaust side as they will be baked on, grinding tool and paste Halfords, if your scraping the car forget about the sludge, come to think of it forget about the stem seals just get a new gasket and put the head back on :D

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Why did you take the head off?

 

 

yeah that!

 

I've never known an NA to suffer from leaking stem seals, not saying it doesn't happen just that if they weren't smoking then I'd leave them alone especially after hearing your long (short!) term plans for the car :)

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Why did you take the head off?

 

 

yeah that!

 

I've never known an NA to suffer from leaking stem seals, not saying it doesn't happen just that if they weren't smoking then I'd leave them alone especially after hearing your long (short!) term plans for the car :)

 

Copious white clouds from the exhaust, guzzling coolant and thick creamy oil...:(

 

My short term plans were getting a bit too short...;)

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if your scraping the car forget about the sludge, come to think of it forget about the stem seals just get a new gasket and put the head back on :D

 

Yeah, that was my angle, but I have the gear ordered now, so I'll hold on and do it properly. At this stage, it's as much about having a bit of fun by doing the job as it is about getting the car back on the road...:)

 

 

 

Thanks, everyone, for the input!

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