Hi Guys,

Found this wierd and scary situation after pulling off my head today.

Issue - Water getting mixed in oil. Suspecting a failed head gasket we were shocked to find the sleeves were chipping off from the outer edges. Attaching pics for reference. When we first observed the problem we immediately flushed the old oil and poured new oil in. Car was driven for about 10 kms and we chkd the oil it looked ok. Next morning we chkd and found that the oil had turned whitish.

Decided to pull out the head and see. Below is what we found. Gasket was Ok and no cracks or warpage was found.

This block was built and assembled by Logic Motorsports and has only done a max of 1200 kms since it was installed.

Why did this happen and what do I do. Have a race coming up on the 25th of this month and have been preparing my car for this event from a long while. We had just about got everything dead on and I sent the car for a complete scrap down to get a paint job as it was rusting badly.

Very upset and dont know what to do.

https://honda-tech.com/forums/all-motor-naturally-aspirated-44/2-0l-na-build-skunk2-ultra-street-manifold-dd-tech-cams-3143704/

Jignesh

 

The sleeves will have to be replaced. That's a lot of rust, are you running any additives or inhibitors?

Looks more like a benson open deck sleeve?

 

Looks like the coolant was entering around 2 and 3?.. Look at how clean some piston parts look.

That sleeve is in bad shape, but in a honest opinion, i dont know if that will effect sealing, being that far out, now that i've actually seen the pics.

I agree with runnerdown, thats some SERIOUS rust.. You must have been running straight water and/or very little coolant, i dont know how your water situation is over in india, but i've rarely seen that much rust, even running straight water here in louisiana.

Looking at the bottom of the head, def cyl 3 was getting some water injested.

Its hard to really tell, But after seeing the pics, i'd have the head checked for straightness first, then the deck if possible. If all is good, i dont see why a new hg, retroqued properly should have a issue sealing, its very possible something else caused this, engine getting too hot and/or improper head torque?.. Definintly not saying its anything you or your engine builder did, and/or tuner.. But i really dont see that being a issue if its just for a race, That sleeve will need to be replaced though, but for that to happen the entire motor needs to come out.

 

Sorry for thread jacking but can a block that had been resleeved be resleeved again?

Jignesh, must have cost you a lot to get the engine build and ship to you in India. Ever thought of getting a resleeved block from a place thats only 2 and half hour ahead of you?

 

You must have used water with lots of salt or something? No additives or coolant?

Also did it burn much oil? chambers are quite a bit more black than what I am used to, especially on a race engine.

Also, it is certainly not Darton M.I.D sleeves. But I think they might have "normal" sleeves to? (think they sold sleeves for the B-series before they started with the MID design).

 

vteczone yes the blocks can be reused with the same brand and type of sleeve's.

Jignesh what type of coolant where you using the only time I have seen sleeve's chip like that is when a customer used water and not straight coolant its not uncommon as the sleeve's are just a cast iron material and do not like exposure to water at all.

 

Thanks

 

Definately not the darton M.I.D maybe be a LA sleeve blank.
Check the block for a company stamp. The amount of corrosion seems like sitting tap water. As far as resleeving the block it really depends on who did the work and what process was used for example we use darton and use their recommended procedure which allows us to remove injured sleeves and install new sleeves no problem. We use distilled water for our race motors and drain the block and cooling system when its going to sit for a while. It may be reusable after a redecking the block and head.

 

Hi,

Some clarifications.

1> Just looked up the invoice for the block and it said "big bore ductile iron sleeves"

2> The car was never driven with plain water. Always had approx 2 litres of coolant mix in it. The radiator and overflow bottle were always green in colour. Have no other ways of checking.

3> Never burnt oil or overheated

4> Block and head when installed were new and were torqued as per specs given to me by the engine builder.

Am currently taking the block & head to my local engine builder to check if it is warped or cracked anywhere.

Plan is if all ok to install new head gasket and run car and check if problem re occurs. If not then re surface block or head and then do as above.

Calling for new sleeves once I figure out what brand was used.

Jignesh

PS - Below pictures were clicked after a oil flush and fresh oil change was done. Car driven for a max of 15kms and then sitting for 3 days.

 

Update - The engine builder said that we needed to mill the block by .003 thou. He was saying something on the lines that tje head had lifted.

Basically as per him in simple english ever since the engine was assembled the head was never re torqued. Its been thru 3 dyno sessions revving to 10k rpm. Thats what caused this issue as per him.

Head was found to be ok chkd with str8 edge and all else ok.

Its being put back in the car first thing tomorrow.

Hope that this solves my problem of water mixing in oil and the car is ok for the races.

Jignesh

 

.003 of milling will not restore the deck to proper surface. The sleeve chipping goes deeper than that and will hinder sealing ability by having less contact surface. Maybe you will be able to make it through some races but the real solution is to replace the sleeves and start over.

 

Hi,

I know that very well at this stage. However 1st priority was to get thru the race this month. Once done will take a call on when to reopen the engine and change the sleeves.

Jignesh