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Underbody braces, turbos and more!

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PostPosted: Tue May 19, 2015 6:33 pm 
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Chasing a random miss fire and believe it may be valve related. Pulled the head and expected to see something obvious but looks decent. I can see thick carbon in the exhaust area. Prior to me aquireing it it had a vacuume leak, no thermostat so it was running cold, leaking fuel injectors and a bad TCS switch.
I'm assuming I need to rebuild the complete head but was wondering if lapping in new valves would do. I'd really like to get a head package with cam possibly larger valves and an advance sprocket from 3 Tech. I've emailed them and am waiting to hear back but would like to know what my options are
I'm not trying to be cheap just like to know what my options are so I can sell it to the wife.
The plugs in the pictures have about 10 hours hard driving on them.
I invite any comments or suggestions.
Thanks Edd

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PostPosted: Tue May 19, 2015 6:34 pm 
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PostPosted: Tue May 19, 2015 6:37 pm 
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PostPosted: Tue May 19, 2015 6:38 pm 
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PostPosted: Tue May 19, 2015 6:39 pm 
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PostPosted: Tue May 19, 2015 6:40 pm 
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PostPosted: Tue May 19, 2015 6:41 pm 
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PostPosted: Tue May 19, 2015 9:42 pm 
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Island Inbreeder
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first off don't worry about an advance cam gear .. there nothing better then the stock on the 87-88 turbo.
Second take the valve spring off see if you can lapt the valves that will tell you weather or not you have a bent valve stem
if you can hand lapt them then your good to go .....
if you have a high spot when done then you'll tell when a valve stem is bent
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Picture.? stby...jv&s
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this is how you check for leak por gas see which leaks down
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Image


Last edited by jaguar,vettes&sprints on Tue May 19, 2015 9:53 pm, edited 1 time in total.

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PostPosted: Tue May 19, 2015 9:47 pm 
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Thank you I will get on it tomorrow. Am I correct in assuming that if its not bent there is no need to replace them? Sorry for such basic questions just want to make sure I do it right.
Thank you Edd

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PostPosted: Tue May 19, 2015 10:54 pm 
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FloridaEdd wrote:
Thank you I will get on it tomorrow. Am I correct in assuming that if its not bent there is no need to replace them? Sorry for such basic questions just want to make sure I do it right.
Thank you Edd

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Image
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This is from a GTI Motor Suzuki G13B
it is the same for the G10 just another piston and a little more hp
I can't find any of my Sprint valve lapt pictures I've had a few
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you'll see it when you lapt them whether its bent .. you won't get a clean cut all the way around when you lapt then
here is two valves after lapt the one on the left is bent
( not shiny all the way around )
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Image
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some more pictures
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Image
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These are nice lapt and good to go
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Image
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and the seat also should be shiny all the way around after hand lapt
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Image

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t3 ragtop wrote:
the 3 banger isn't at all a "grenade." it's a tough little son of a bitch doing a big job. respect it.
suprf1y wrote:
I didn't save anything.Vehicles are to me, like little boys are to Tommy.Toys to be abused for my own personal pleasure.
jrjd wrote:
"Driving a Swift GTi is like driving a bike in your house".


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PostPosted: Tue May 19, 2015 11:12 pm 
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Island Inbreeder
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after looking at your pictures for a while i would sell your wife on also honing the cylinder's and new Piston Ring. (about $27 Ebay)
looks like your slobbering past your oil scraper ring (very common)
Make sure you clean your ring groves thoroughly ( I do have pictures if needed)
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Also get good valve stem seals there Cheep
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These are good and have used them many times with good results
....jv&s
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http://www.ebay.com/itm/85-97-Chevrolet ... f7&vxp=mtr
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t3 ragtop wrote:
the 3 banger isn't at all a "grenade." it's a tough little son of a bitch doing a big job. respect it.
suprf1y wrote:
I didn't save anything.Vehicles are to me, like little boys are to Tommy.Toys to be abused for my own personal pleasure.
jrjd wrote:
"Driving a Swift GTi is like driving a bike in your house".


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PostPosted: Tue May 19, 2015 11:26 pm 
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Island Inbreeder
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headgasket set with valve stem seals
(grafite is fine just make sure the headgasket surface is clean and dry before install)
.
http://www.ebay.com/itm/Engine-Cylinder ... 6b&vxp=mtr
.


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PostPosted: Tue May 19, 2015 11:32 pm 
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Thank you for the pictures. I ran a compression test on it a few months ago and got right around 170 on all three cylinders (cold)The engine doesn't smoke at all.
Not trying to be a know it all because I don't just stating what I do know. Wouldn't take but a couple of hours to get the rest out to do the rings if need be. The wet look in the pictures is from oil when I removed it and the plugs show no look of burning oil but I do see all of the carbon in the combustion chamber.
If you still think I need to do rings please let me know as I will follow almost any suggestions.
Thank you Edd

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PostPosted: Tue May 19, 2015 11:48 pm 
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Island Inbreeder
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.
That's great you got 170 PIS on your compression test...
That does not tell you whether your oil scraper rings are gummed up.
I would pop #3 piston out look the oil scraper ring & compression ring see if the have carbon deposit
and also cylinder walls then go from there.
It's quick and EZ if it looks super clean i would go with it but if your walls are shiny and the rings coked up do it.... it's cheep
....jv&s
.
also clean your EGR Valve and port ...The port goes through your head right next to the #3 cyclinder


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PostPosted: Wed May 20, 2015 7:19 am 
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Ok that's why I'm asking. The egr had Avery thin layer of carbon lining the opening however it has been disconnected for an unknown amount of time. There is a very thin layer of carbon around the top of the cylinder and on the Pistons.
I did notice a wet oil film on the intake runners.
I'm gonna focus on the head today and wait for you're input.
Thank you Edd

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PostPosted: Wed May 20, 2015 7:24 am 
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PostPosted: Wed May 20, 2015 7:29 am 
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PostPosted: Wed May 20, 2015 7:30 am 
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PostPosted: Wed May 20, 2015 7:33 am 
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If you say to rebuild I'm all over it like stink on a monkey.
Edd

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PostPosted: Wed May 20, 2015 9:58 am 
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Took about 3 hours but it's on the ground. I knew I was gonna do it I just needed a little push to get going and that's what you gave me. Thank you.
I loosened all of the rocker arms and put gas in the combustion chambers. They seemed to slowly leak down but might have just been evaporation. It never missed u till fully warmed up so a leaking one might not show cold I'm thinking.
Gonna work on the valves this evening as long as I can find my spring compressor. Seems I spend more time finding my tools than useing them.

So what are my options at this point ? Rings and bearings only as the cylinders look good. Any performance mods I should consider now befor rebuilding?
If it was a Chevy v8 I'd know all about it

Thanks Edd

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Last edited by FloridaEdd on Wed May 20, 2015 10:21 am, edited 1 time in total.

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PostPosted: Wed May 20, 2015 10:00 am 
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PostPosted: Wed May 20, 2015 10:02 am 
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Ignore the shoe I put it in the pic for size reference for a friend of mine.

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PostPosted: Wed May 20, 2015 10:03 am 
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PostPosted: Wed May 20, 2015 12:30 pm 
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Island Inbreeder
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these Little engine are well built for what they are
the best mod you can do is get a better Cam profile to make more power

(see superf1y"mike cove") he is a master craftsman and knows his stuff...don't tell him jv&s sent you he will charge you double... seriously
Also think about getting a rebuilt dizzy from ( fainya) for us turbo guys his dizzy are the best.

The cylinder walls look good now that you have it out.....
Do Bearing,Seals,Rings, with hone lapt the Valves with seals.

And if the wife says it's ok get a cam
you wont regret it it definitely adds wow factor

I would NOT go the "bigger piston /turbo, Studs,Copper gasket.route just yet
I 'm a firm believer in the KISS principle.

A lot of guys have over built the G10 only to be disappointed ( Money to HP ratio/Reliability)
These little Engine are great for what they are Turbo 87HP from the factory with slight mods You might get 100Hp
if you need more HP then that the smart money would be to Build a G13B turbo
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I can get you the spec on my "Coves" cam if you like
I've started my work cycle and can't get to the Computer Regular for next 7 days...jv&s
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Image
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_________________
.

t3 ragtop wrote:
the 3 banger isn't at all a "grenade." it's a tough little son of a bitch doing a big job. respect it.
suprf1y wrote:
I didn't save anything.Vehicles are to me, like little boys are to Tommy.Toys to be abused for my own personal pleasure.
jrjd wrote:
"Driving a Swift GTi is like driving a bike in your house".


Last edited by jaguar,vettes&sprints on Wed May 20, 2015 12:52 pm, edited 1 time in total.

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PostPosted: Wed May 20, 2015 12:50 pm 
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Island Inbreeder
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Location: Emerald city Washington
Cam dimensions
.
mike = suprf1y = 3tech performance
cam from 3Tech (375) lift-(215) duration
.
.
.

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Image

_________________
.

t3 ragtop wrote:
the 3 banger isn't at all a "grenade." it's a tough little son of a bitch doing a big job. respect it.
suprf1y wrote:
I didn't save anything.Vehicles are to me, like little boys are to Tommy.Toys to be abused for my own personal pleasure.
jrjd wrote:
"Driving a Swift GTi is like driving a bike in your house".


Top
 Profile  
 
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