how long for valve to bend aftr a wrong timing adjustment

[vicky_turbo]

hi guy

just bought the car ,sellar told me he did a timing belt change ,there was a weird sound in the engine but very less ..i took it to a extra slow mechanic took him to swap auto to manual in 26 days ,27th day he cranked the engine n wont start at all ,he said valves are bended ..wot damage could i have dun n can n e one give me a guide to change the valves on a 4g63 1g 92. i jus did a swap n ended up in this mess ...

 

[LiquidX]

Use proper grammar and spelling.

If the timing belt is adjusted wrong then the first start up could damage the valves. We have interference engines which means the valves and pistons are in the sampe place but at different time.

Sometimes you get lucky if its a tooth or two off but after that you'll get contact.

For removing valves you need to take the cams out and be sure to keep the caps in proper order for each stick. Next lift out the rockers and HLAs (now would be a good time to get the revised lifers with larger oil ports). Now you need a valve spring compression tool so you can remove the valve locks. Once those are removed you can take the spring and retainer out. Lastly drop the valves.

You'll want to replace the valve seals and get the valve guides checked at a machine shop for damage. The machine shop will need to I stall new guides as they have to be measured properly.

New valves will need to be either lapped into the head or they should be cut matched for a better seal.

To install is the reverse and you should also get new cam shaft seals as well. Use all new OEM timing parts (pulleys, belts, tensioner).

 

[rlacasse1]

You do see his location right? I don't think he knows proper grammar and spelling.


You will have to pull the head off the engine to change the valves. And you will want a machine shop to do it because they will have to machine everything to get the valves to seat properly.

 

[LiquidX]

When you use chat room/cell phone lingo there is t an excuse. Seriously "N E". Obviously s/he know the word "any"

 

[BogusSVO]

look thu this....

http://www.dsmtuners.com/forums/newbie-forum/341218-how-change-valve-guides-4g63t-head.html

also the valve springs need to be checked...
http://www.dsmtuners.com/forums/newbie-forum/341287-how-test-valve-springs.html

but if you bent the valves good chance the guides are busted...

 

[rlacasse1]

^^^^ Listen to that guy!

 

[JacksonAuto]

If the timing is off the valves will bend immediately. There is NO delay. They'll hit each other, the pistons or both. Then, like BogusSVO said, you'll be replacing guides.

 

[vicky_turbo]

yea grammer and spellings is another problem ..
thanks guys need to ask a question,i drove the car almost 40 kms aftr the timing belt changed .as you said 2 or 3 teeths difference .can the car run 40 kms if the timing is set wrong .i am the only one dsmer lover in the UAE ..i had one before 2 years back ..now i bought 2 of them one for spares and one for use..coz in this part of the world sparepart for dsm is imposible to find thats why i did a swap from my spare car .now head will be swapped the mechanic said pistons are good
again minor scratches on the piston wont expandto heat rite ??
in the UAE people dont even know which car am driving a cop stoped me said which car is it .
head gasket should be replaced ...any other tips to carry out the work ..

thanks all of you for replying
dsm rules

 

[rlacasse1]

Just retime it first. If you were only off a tooth or two or three then you are probably fine and haven't bent a valve. If you get to far off then you will bend a valve.

If you are off by one tooth then you can drive it forever without bending a valve.

It isn't about how long you drive it, it is about how far off the timing is.

Anyways, if it was me I would just try re-timing it first.

 

[black_gst]

you will need to clean up and marks left on the pistons from valves from contacting the pistons. these marks can cause knock. You just need to smooth out any burs and sharp edges.

good luck!

 

[black_gst]

Just retime it first. If you were only off a tooth or two or three then you are probably fine and haven't bent a valve. If you get to far off then you will bend a valve.

If you are off by one tooth then you can drive it forever without bending a valve.

It isn't about how long you drive it, it is about how far off the timing is.

Anyways, if it was me I would just try re-timing it first.

this may only be true if you have stock cams. i know 1 tooth off on my car and i have contact.

another tip is any time you do a timing belt on a dsm you should rotate the engine over by hand before you try and start it

 

[rlacasse1]

He doesn't have any cams listed in his profile, so I am assuming they are stock.

 

[vicky_turbo]

guys valves were bended ..any ways i swapped the head from my spare 1g with new stock gasket ..timing is set perfect now but another problem ..the car is missing 2 cylinders are not working wot could it be .i have new plugs ngk 6 platinum..wires are sparking all 4 of thm .today will check injectors is there a list of hings to check wen ## cylinders fail to work ..

thanks all of you

 

[steve]

i am the only one dsmer lover in the UAE
in the UAE people dont even know which car am driving a cop stoped me said which car is it

Your far from the only DSM owner in the UAE, there are 5 other members who claim to be from Dubai. Time to start a local club.

 

[vicky_turbo]

guys
i got the cylinders sorted it was the ptu connector that was loose ,finally drove the car checked my manual tranmision work great .but now there is a vibration in the engine is it the balance shaft not aligned to the oil pump .coz its a severe vibration rest all is good up till now i have spended alot on this car an i want it runing perfect .a collegue of mine is visiting USA tx for his rating exams on gulfstream aircrafts so called up extreme psi for some parts to be deleivered to his location am crazy for this car guys help me solve all the problems.i m ordering scanmaster ,
i need to solve the vibration issue is it the balance shaft coz the timing belt was replaced and plus my oil guage is not working plus the oil low level indication is flactuating at all time .wot could it be

cheers
dsm rules
and yea its time to make a club in the UAE
all UAE guys calling in

 

[RayBan GST]

hello there , well i am in dubai and i owned 3 eclipses been there done that

i am looking to buy a new eclipse now after i bought a mustang Gt and fiat coupe turbo ( i sold them both) .

before i start telling you what to do and what to fix , let us know to which mechaninc you sent the car for the swap and the work ? because this will answer everything. i am sure without doubt that he set your timing wrong.

pm me if you need any help