GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: Screech16v on 07 April 2012, 21:35
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Not a gti but a 1.3 on a c plate,headgasket replacement time ,question is can i reuse the old headbolts ,cheers peeps :smiley:
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you could if you want to but would have to cut about 10-15 mm of them . :grin:
best to get new ones really... :wink: :smiley:
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ha ha i take it they may bottom out then if you didnt cut them ,err probs best to get new ones then. thanks mad4vws,great help :smiley:
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They are stretch bolts so will need renewing
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Ok cheers wayne :smiley:
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Get them from GSF, stealers want £80+ for ten bolts the twits
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Get them from GSF, stealers want £80+ for ten bolts the twits
Ha ha they are havin a laugh :grin: cheers sam but already ordered some from heritage for £14 :smiley:
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Stretch bolts must be replaced.
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Post counts must go up!
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Post counts must go up!
Haha give me a break, i haven't got to 5000 yet :kiss:
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It is not right that the bolts have to be changed definitly, I am using the original ones for third time, no problem. The bolts are stretched when the engine is overheated or something drastic happened with the engine, broken piston, broken crankshaft. If you are planning to change only the head gasket it is no problem, the original ones are more stronger then the replacement ones.
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It is not right that the bolts have to be changed definitly, I am using the original ones for third time, no problem. The bolts are stretched when the engine is overheated or something drastic happened with the engine, broken piston, broken crankshaft. If you are planning to change only the head gasket it is no problem, the original ones are more stronger then the replacement ones.
Wrong they must never be reused, they are stretch bolts and a use only once item.
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Wrong they must never be reused, they are stretch bolts and a use only once item.
I don`t what to argue, I am speaking from experience and testing in the lab on stretch machine.
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Wrong they must never be reused, they are stretch bolts and a use only once item.
I don`t what to argue, I am speaking from experience and testing in the lab on stretch machine.
They are torqued to spec, then a further turn is used to stretch them, they are cheap enough to buy so cannot see any point in risking it by using them again.
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Wrong they must never be reused, they are stretch bolts and a use only once item.
I don`t wnat to argue, I am speaking from experience and testing in the lab on stretch machine.
They are torqued to spec, then a further turn is used to stretch them, they are cheap enough to buy so cannot see any point in risking it by using them again.
I told you that I don`t want to argue, I have don quite a big number of engines and a lot bigger, I know what I am doing. I know a lot of things for stretching and strength of the materials. I am a Mechanical Engineer specialty Marine Engineering. I told you I am I am speaking from experience and testing in the lab. Yes if he wants to by new set no problem.
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TBF if the bolts need to come out its usually some issue with the head or block so its a matter of course to change out stretch bolts of course they have tolarances so do gaskets, but I still change them regardless. One day the bolts will shear and then the drill bits come out :lipsrsealed:
on another note every MK2 brake splash shield plate I've had to drill out the retaining bolts that hold them in stupid 8mm bolts wish they use god dam heat proof plastic revits instead as I'll have to spend an hour per side drilling in sizes just to get the plates off not happy!
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The bolts are stretched when the engine is overheated or something drastic happened with the engine, broken piston, broken crankshaft.
No, the bolts stretch when you angle tighten them.
I have don quite a big number of engines and a lot bigger, I know what I am doing. I know a lot of things for stretching and strength of the materials. I am a Mechanical Engineer specialty Marine Engineering. I told you I am I am speaking from experience and testing in the lab
So why does every manufacturer state that they must be replaced? I think i know what advice i'm going to take!
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I re used the bolts on my 1.3 h/g no problem, it was a saturday afternoon and getting the gasket off the shelf was lucky enough! It was back together later that night with only a clean up and a new gasket used,no skim etc and it lasted a year and a half no problem. Not gospel engineering evidence/proof, just my experience.. I wouldn't rush or skimp on a better engine though, i read somewhere possibly here that bolts can be had for peanuts really..
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I told you that I don`t want to argue, I have don quite a big number of engines and a lot bigger, I know what I am doing. I know a lot of things for stretching and strength of the materials. I am a Mechanical Engineer specialty Marine Engineering. I told you I am I am speaking from experience and testing in the lab. Yes if he wants to by new set no problem.
You can tell people you don't want to argue all you like and that you're an engineer.
What you're suggesting is to go outside of the spec VW recommend, which is to NOT reuse the bolts.
The bolts are stretched when the engine is overheated or something drastic happened with the engine, broken piston, broken crankshaft.
When you're spouting shyte like this people are going to call into question your knowledge, because it's rubbish.
the original ones are more stronger then the replacement ones.
Love to know how you figure this one. :grin: Are the original ones made out of VW-spec unobtainium?
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DH and A8 in a kinda agreement shocker :grin: :laugh:
Popcorns in the Microwave, back soon :tongue:
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Heckers jeckers, this is rare for the mk2 section :shocked:
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DH and A8 in a kinda agreement shocker :grin: :laugh:
We also agreed that it is utter stupidity to jack in the middle of the rear axle :smug:
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OMG i dont come in here very often and only asked a simple question ,this is fun what else can i ask :grin:
I need to change my rear wheel bearings can i use the grease out of my old cv boot and do i have to splash out on new split pins :laugh: :laugh:
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DH and A8 in a kinda agreement shocker :grin: :laugh:
We also agreed that it is utter stupidity to jack in the middle of the rear axle :smug:
:huh:
:laugh:
thats ok then, I jack just off centre of the rear axle :grin:
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I need to change my rear wheel bearings can i use the grease out of my old cv boot and do i have to splash out on new split pins :laugh: :laugh:
If it's yours - new grease and split pins.
Customer's? Old grease and a nail.
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I need to change my rear wheel bearings can i use the grease out of my old cv boot and do i have to splash out on new split pins :laugh: :laugh:
If it's yours - new grease and split pins.
Customer's? Old grease and a nail.
Like it max profit,you must be loaded :grin:
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I need to change my rear wheel bearings can i use the grease out of my old cv boot and do i have to splash out on new split pins :laugh: :laugh:
If it's yours - new grease and split pins.
Customer's? Old grease and a nail.
Like it max profit,you must be loaded :grin:
he doesnt have customers, he has goons :laugh: :grin:
:kiss:
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Where is the glove geezer i need to know the torsional strengh of a 2nd hand split pin :laugh:
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Ok boys you are making fun on me, that is not very good.
Like I told this is from practice and experience. If you want to next time when you are asking some questions better don`t do it, answer your self and spare the time writing for something good and useful. I suppose everyone of you has a repair manual for VW, use it and don`t ask qestions.
Thank you for the attention and good luck.
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a marine engineer hey, so a Mk3 then yes or maybe a mk4 as you are a tad sensative I see :grin: :laugh:
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Ive reused serval 'stretch bolts' on my car time and time again with no problems :lipsrsealed:
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Ive reused serval 'stretch bolts' on my car time and time again with no problems :lipsrsealed:
So have i. But i probably wouldn't risk it with head bolts :lipsrsealed:
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muppet
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a marine engineer hey, so a Mk3 then yes or maybe a mk4 as you are a tad sensative I see :grin: :laugh:
No I have Mk2 1,6 carburator Madison 1990 which is the car I bought in 2005y which in time evolved in to 1,8 mono injection with a live data from thw ECU,115hp and GTI suspention and alot ore things. And MK3 1,6 Europ 1996 full electric pack which I bought for my father in 2007y. Since then the two cars are serviced and maintained only by me and no one else.
This is my car,
(http://www.picvalley.net/u/1626/118554395913690043951331666549GNdgk2WC1bEsUkLGFZjp.JPG) (http://www.picvalley.net/v.php?p=u/1626/118554395913690043951331666549GNdgk2WC1bEsUkLGFZjp.JPG)
unfortunately I dont have a picture of my fathers car.
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Ive reused serval 'stretch bolts' on my car time and time again with no problems :lipsrsealed:
if you changed bolts every time your car gets taken apart you would be REALLY skint :grin: :laugh:
:kiss:
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should you reuse then = NO can you get away with reuseing them sometimes = YES
just duffing the bolts back in is asking for problems tho, if you accuraty measure there lengths you can work out if they are reuseable some engine i've worked on actualy state the lengths of head bolts, main bolts, big end bolts and frount pully bolts.
take an old 1.8 8 v motor you can doff a head down on one of them with 2nd hand bolts and not even bother with a torque wrench if you want, even just rattel them down with air inpacter and then add 1/4 turn as long as you work from the inside out. just accsept the fact that there is a chance you may well have to take it to bits and do it again and possobly replace more bits if it goes wrong. it's all a question of odds
i can defatly tell you that on an E46 bmw you cannot reuse the head bolts and you really dont wan the chance of haveing to take the had off and do thr gasket again for the price of them. on a mk2 gti you may choose to take the chance the gasket is only a tenner aand the heads back on in less than 2 hours
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Ok boys you are making fun on me, that is not very good.
Must be one of those British things - not taking any old line of nonsense from some random goon posting on the interweb, declaring himself to have all sorts of qualifications and experience.
You may have lots of experience, but you are running a 1.8 8V Golf2... with single-point injection, apparently. Even if you have a lot of knowledge about the 1.8 8V it's not exactly cutting edge. Why would we believe your views on stretch bolts? We don't know you, or anything about you. There are people who are a lot more qualified with this audience who are saying quite different things to you.
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And still, no one has mentioned lubricating the threads to achieve the correct torque figure in the first place! old or new bolts...
Yes, head bolts should be replaced as specified the head bolts are probably the most critical bolts on the whole car , going through many thousands of heat cycles, they are well abused!
The reality though, a high percentage of Garages, and DIYers will take the gamble and not bother swapping them, usually it being down to price, new bolts can add quite an extra chunk to the bill, not fitting them is fine, as long as the customer is aware that the repair, may not last as long as it should do, either the HG failing earlier than normal, or damage to the threads in the block on extraction... you get what you pay for, simple as that!
If I was rebuilding an engine, I would never consider NOT fitting new or uprated bolts, together with all the other critical bolts that should be replaced
Thom
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Compaired my new ones to my old ones today, no idea what is meant to 'stretch' as all the threads slotted together perfectly with no light gaps when held up....having said this, I still would never re-use old ones for the sake of £1 a bolt :lipsrsealed:
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I am not going to prove you what is my qualification, diploma and degree! I don`t intend to teach you how to tie your shoes!
I expressed my opinion and all of you with some exceptions started to argue. I know better what I can do and what I know.
And about my car, it is my decision do make it like this, I am not looking for cutting edge of technology and this I will not going to explain to you. I know my car like my right hand and I can fix it without problem.
Thank you all for the time and have a good day, this was my last post in this forum. I am not planning to argue every time
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I am not going to prove you what is my qualification, diploma and degree!
Well its definatley not in english,good day boffin :laugh: :laugh:
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I remember with my old rover 200 the drill was to measure the bolts and only replace them if they were over a particular length. They fastened to a rail at the bottom of the engine though which is handy when you snap one :rolleyes:
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Clearly strong differences of opinions here, lets leave it at that :rolleyes:
Thom